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182 results on '"Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)"'

1. Rethinking Iconic Species Reforestation in West Africa: Seed Shape Harnessing Is Strategic for Enhanced Germination and Vigorous Growth in Khaya senegalensis and Parkia biglobosa

Author: Adji, Beda, Letort, Véronique, Wang, Xiujuan, Kang, Mengzhen, de Reffye, Philippe, Jaeger, Marc, Cilas, Christian, Kouassi, Kouadio, Duminil, Jérôme, Sabatier, Sylvie, Akaffou, Doffou, Université Jean Lorougnon Guédé (UJloG ), Mathématiques et Informatique pour la Complexité et les Systèmes (MICS), CentraleSupélec-Université Paris-Saclay, Chinese Academy of Sciences [Beijing] (CAS), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), AMAP Lab [Saint-Pierre - La réunion], Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Cirad Direction Générale (Cirad-DG), Diversité, adaptation, développement des plantes (UMR DIADE), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM)
Subjects: Khaya senegalensis, Côte d'Ivoire, [SDE]Environmental Sciences, Parkia biglobosa, seed quality, reforestation, seed quality reforestation Khaya senegalensis Parkia biglobosa Côte d'Ivoire
Abstract: International audience; Seed size is a critical factor that can impact the regeneration process of plant populations. The objective of this study is to identify optimal seeds for the cultivation of two overexploited native forest species in Côte d'Ivoire, namely Khaya senegalensis (Desr.) A.Juss., 1830 and Parkia biglobosa (Jacq.) R.BR. ex G. Don, 1830. A total of 1080 seeds per species were evaluated for germination and seedling vigour in two distinct environments (dry and humid) in Côte d'Ivoire. The results demonstrated that, for Khaya senegalensis, larger seeds exhibited higher germination rates, whereas for Parkia biglobosa, smaller and medium-sized seeds showed better germination performance. However, regardless of species and study site, larger seeds consistently produced more vigorous seedlings. In this case, pretreatment tests on large seeds of Parkia biglobosa can potentially enhance their germination performance. Large seeds, ranging from 0.25-0.37 g in Khaya senegalensis and 0.2-0.32 g in Parkia biglobosa, appear to be the most suitable and best candidates for high-quality, high-performance seeds to optimise the cultivation of these species in Côte d'Ivoire. Distributing such seeds to farmers can contribute to the success of reforestation and agroforestry programs involving these target species in Côte d'Ivoire. These findings contribute to the sustainable management of the target species and can serve as a basis for restructuring forest regeneration policies in Côte d'Ivoire.
Published: 2023

2. A sex-structured model of Wolbachia invasion to design sex-biased release strategies in Aedes spp mosquitoes populations

Author: Pierre-Alexandre Bliman, Yves Dumont, Oscar Eduardo Escobar-Lasso, Hector J. Martinez-Romero, Olga Vasilieva, Modelling and Analysis for Medical and Biological Applications (MAMBA), Inria de Paris, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire Jacques-Louis Lions (LJLL (UMR_7598)), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), AMAP Lab [Saint-Pierre - La réunion], Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Department of Mathematics and Applied Mathematics [Pretoria], University of Pretoria [South Africa], Universidad del Valle [Cali] (Univalle), E. Escobar, Hector J. Martinez, and Olga Vasilieva acknowledge financial support from the National Fund for Science, Technology, and Innovation (Autonomous Heritage Fund Francisco José de Caldas) by way of the Research Program No. 1106-852-69523, Contract: CT FP 80740-439-2020 (Colombian Ministry of Science, Technology, and Innovation – Minciencias), Grant ID: CI-71241 (Universidad del Valle). The endorsement obtained from the STIC AmSud Program for regional cooperation (20-STIC-05 NEMBICA project) is gratefully recognized by all authors., Yves Dumont is (partially) supported by the DST/NRF SARChI Chair in Mathematical Models and Methods in Biosciences and Bioengineering at the University of Pretoria (Grant 82770). Yves Dumont acknowledges the support of DST/NRF Incentive Grant (Grant 119898) and the support of the Conseil Régional de la Réunion, the Conseil Départemental de la Réunion, the European Agricultural Fund for Rural Development (EAFRD) and the Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD)., Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPC), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and E. Escobar, Hector J. Martinez, and Olga Vasilieva acknowledge financial support from the National Fund for Science, Technology, and Innovation (Autonomous Heritage Fund Francisco José de Caldas) by way of the Research Program No. 1106-852-69523, Contract: CT FP 80740-439-2020 (Colombian Ministry of Science, Technology, and Innovation – Minciencias), Grant ID: CI-71241 (Universidad del Valle). The endorsement obtained from the STIC AmSud Program for regional cooperation (20-STIC-05 NEMBICA project) is gratefully recognized by all authors. Yves Dumont is (partially) supported by the DST/NRF SARChI Chair in Mathematical Models and Methods in Biosciences and Bioengineering at the University of Pretoria (Grant 82770). Yves Dumont acknowledges the support of DST/NRF Incentive Grant (Grant 119898) and the support of the Conseil Régional de la Réunion, the Conseil Départemental de la Réunion, the European Agricultural Fund for Rural Development (EAFRD) and the Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD).
Subjects: Applied Mathematics, biochemical phenomena, metabolism, and nutrition, Aedes spp, Male-biased releases, Population replacement, Modeling and Simulation, parasitic diseases, Numerical simulations, bacteria, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC], Qualitative Analysis, [MATH]Mathematics [math], Sex-structured model, Wolbachia symbiont, reproductive and urinary physiology, Ordinary differential equations
Abstract: Laboratory experiments as well as some field essays have revealed that the intracellular bacterium Wolbachia, deliberately introduced in Aedes spp female mosquitoes, drastically reduces their vector competence for dengue virus and, also, other mosquito-borne viral diseases. However, female mosquitoes infected with Wolbachia still need to ingest human blood while male mosquitoes, either wild or Wolbachia-carrying, do not bite people. As such, Wolbachia-carrying females may transmit the virus to people during blood-feeding, even though with far less probability than the wild ones. Therefore, massive releases of Wolbachia-carrying females may increase both the nuisance and the epidemiological risk among human residents. With the goal of exploring in depth the practical aspects of sex-biased releases, we introduce in this paper a simple sex-structured model of Wolbachia invasion that brings forward the possibility of developing male-biased release strategies of Wolbachia-carriers leading to Wolbachia invasion. Thanks to this model, we study at length the minimal amount of mosquitoes necessary to complete this task, according to the relative sex-ratio of the released mosquitoes and the release schedule. We also pay attention to the estimate of the time needed to achieve the ultimate population replacement.
Published: 2023

3. Modeling the impact of rainfall and temperature on sterile insect control strategies in a Tropical environment

Author: Dumont, Yves, Duprez, Michel, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), AMAP Lab [Saint-Pierre - La réunion], Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Department of Mathematics and Applied Mathematics [Pretoria], University of Pretoria [South Africa], Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Computational Anatomy and Simulation for Medicine (MIMESIS), Inria Nancy - Grand Est, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), This work is partially supported by the 'SIT feasibility project against Aedes albopictus in Réunion Island', TIS 2B (2020-2022), jointly funded by the French Ministry of Health and the European Regional Development Fund (ERDF). YD is (partially) supported by the DST/NRF SARChI Chair in Mathematical Models and Methods in Biosciences and Bioengineering at the University of Pretoria (Grant 82770). YD acknowledges the support of DST/NRF Incentive Grant (Grant 119898). YD acknowledges the support of the Conseil Régional de la Réunion, the Conseil Départemental de la Réunion, the European Agricultural Fund for Rural Development (EAFRD) and the Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD)., Duprez, Michel, and Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)
Subjects: Rainfall, Sterile Insect Technique, Temperature, Epidemiological risk, [MATH.MATH-OC] Mathematics [math]/Optimization and Control [math.OC], Nuisance reduction, Numerical simulation, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, Vector control, Aedes spp, Residual fertility, Optimization and Control (math.OC), FOS: Mathematics, Mathematical modeling, [INFO.INFO-MO] Computer Science [cs]/Modeling and Simulation, [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC], Mathematics - Optimization and Control
Abstract: The sterile insect technique (SIT) is a biological control technique that can be used either to eliminate or decay a wild mosquito population under a given threshold to reduce the nuisance or the epidemiological risk. In this work, we propose a model using a differential system that takes into account the variations of rainfall and temperature over time and study their impacts on sterile males releases strategies. Our model is as simple as possible to avoid complexity while being able to capture the temporal variations of an Aedes albopictus mosquito population in a domain treated by SIT, located in R{\'e}union island. The main objective is to determine what period of the year is the most suitable to start a SIT control to minimize the duration of massive releases and the amount of sterile males to release, either to reduce the mosquito nuisance, or to reduce the epidemiological risk. Since sterilization is not 100% efficient, we also study the impact of different levels of residual fertility within the released sterile male population. Our study shows that rainfall plays a major role in the dynamics of the mosquito and the SIT control, that the best period to start a massive SIT treatment lasts from July to December, that residual fertility has to be as small as possible, and that increasing the size of the releases is not always necessarily interesting. We also highlight the importance of combining SIT with mechanical control, i.e. the removal of breeding sites, in particular when the initial mosquito population is large.
Published: 2022

4. Epidemiological assessment of Wolbachia-based biocontrol for reduction of dengue morbidity

Author: Vasilieva, Olga, Escobar, Oscar, Martinez, Hector, Bliman, Pierre-Alexandre, Dumont, Yves, Universidad del Valle [Cali] (Univalle), Modelling and Analysis for Medical and Biological Applications (MAMBA), Inria de Paris, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire Jacques-Louis Lions (LJLL (UMR_7598)), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), AMAP Lab [Saint-Pierre - La réunion], Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), University of Pretoria [South Africa], Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), ECOS-Nord project (C17M01-France – CI-71089-Colombia), and 20-STIC-05 NEMBICA project
Subjects: Dengue, Population replacement, [SDV]Life Sciences [q-bio], parasitic diseases, Epidemiological risk, Epidemiological model, [MATH]Mathematics [math], Sex-structured model, Wolbachia symbiont, reproductive and urinary physiology, Aedes spp
Abstract: International audience; Wolbachia-based biological control has recently emerged as an ecologically friendly and potentially cost-effective method for prevention and control of dengue and other arboviral infections. When deliberately infected withWolbachia, major vector species, such as Aedes aegypti females, lose their vectorial competence and become less capable of transmitting the virus to humans. Thus, Wolbachia-based biocontrol aims to replace wild vectors (fully capable of transmitting arboviral infections) by Wolbachia-carrying insects that bear a reduced transmission capacity. The population replacement can be achieved by releasing mosquitoes that were transinfected with Wolbachia during the process of mass-rearing.In this presentation, we propose a sex-structured model describing the dynamics of two sup-populations of adult mosquitoes: the wild insects (males and females that are Wolbachia- free), and those deliberately infected with Wolbachia. This model is biologically viable, well-posed, and reflects the two significant features of Wolbachia: maternal transmission and cytoplasmic incompatibility. The model also exhibits bistability that agrees with the principle of competitive exclusion.Using this mosquito population dynamics model, we further construct a dengue transmission system of SEIR-SEI type to perform an epidemiological assessment of Wolbachia-based control for prevention of dengue morbidity. As an example, we simulate this type of preventive control applied to Cali, a sizeable Colombian city commonly considered a hyperendemic area regarding dengue morbidity.
Published: 2022

5. Butene Emissions From Coastal Ecosystems May Contribute to New Particle Formation

Author: Giorio, Chiara, Doussin, Jean‐François, D’Anna, Barbara, Mas, Sébastien, Filippi, Daniele, Denjean, Cyrielle, Mallet, Marc Daniel, Bourrianne, Thierry, Burnet, Frédéric, Cazaunau, Mathieu, Chikwililwa, Chibo, Desboeufs, Karine, Feron, Anaïs, Michoud, Vincent, Namwoonde, Andreas, Andreae, Meinrat O, Piketh, Stuart J, Formenti, Paola, Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire Chimie de l'environnement (LCE), Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Observatoire de REcherche Méditerranéen de l'Environnement (OSU OREME), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Giorio, Chiara [0000-0001-7821-7398], Doussin, Jean‐François [0000-0002-8042-7228], D’Anna, Barbara [0000-0003-1985-229X], Denjean, Cyrielle [0000-0001-5559-5732], Mallet, Marc Daniel [0000-0003-2749-8833], Cazaunau, Mathieu [0000-0003-4024-8978], Namwoonde, Andreas [0000-0003-1209-2574], Andreae, Meinrat O [0000-0003-1968-7925], Formenti, Paola [0000-0002-0372-1351], Apollo - University of Cambridge Repository, Université Montpellier 2 - Sciences et Techniques (UM2)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Giorio, C [0000-0001-7821-7398], Doussin, JF [0000-0002-8042-7228], D’Anna, B [0000-0003-1985-229X], Denjean, C [0000-0001-5559-5732], Mallet, MD [0000-0003-2749-8833], Cazaunau, M [0000-0003-4024-8978], Namwoonde, A [0000-0003-1209-2574], Andreae, MO [0000-0003-1968-7925], and Formenti, P [0000-0002-0372-1351]
Subjects: 13 Climate Action, Geophysics, [SDU]Sciences of the Universe [physics], [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology, 3701 Atmospheric Sciences, General Earth and Planetary Sciences, 37 Earth Sciences, 41 Environmental Sciences
Abstract: International audience; Marine ecosystems are important drivers of the global climate system. They emit volatile species into the atmosphere, involved in complex reaction cycles that influence the lifetime of greenhouse gases. Sea spray and marine biogenic aerosols affect Earth's climate by scattering solar radiation and controlling cloud microphysical properties. Here we show larger than expected marine biogenic emissions of butenes, three orders of magnitude higher than dimethyl sulfide, produced by the coastal part of the Benguela upwelling system, one of the most productive marine ecosystems in the world. We show that these emissions may contribute to new particle formation in the atmosphere within the marine boundary layer through production of Criegee intermediates that oxidize SO2 to H2SO4. Butene emissions from the marine biota may affect air quality and climate through ozone, secondary organic aerosol, and cloud condensation nuclei formation even in pristine regions of the world. Our results indicate a potentially important role of butene emissions in marine particle formation that requires investigation in other regions.
Published: 2022

6. Carotenoid absorption in rats fed with vacuum-fried papaya chips depends on processed food microstructure associated with saturated and unsaturated oils

Author: Patrick Poucheret, Geneviève Conejero, Karine Portet, Fabrice Vaillant, Marvin Soto, Claudie Dhuique-Mayer, Adrien Servent, Démarche intégrée pour l'obtention d'aliments de qualité (UMR QualiSud), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Département Performances des systèmes de production et de transformation tropicaux (Cirad-PERSYST), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Plateforme d'histocytologie et d'imagerie cellulaire végétale (PHIV), Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Qualisud - Pôle de La Réunion (Qualisud Réunion ), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Institut Agro - Montpellier SupAgro, Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Institut Agro - Montpellier SupAgro
Subjects: Vacuum, 030309 nutrition & dietetics, Bioconversion, [SDV]Life Sciences [q-bio], Absorption (skin), 7. Clean energy, 03 medical and health sciences, chemistry.chemical_compound, 0404 agricultural biotechnology, Lycopene, medicine, Animals, Vacuum frying, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, Food science, Rats, Wistar, Food microstructure, Q04 - Composition des produits alimentaires, Carotenoid, 2. Zero hunger, chemistry.chemical_classification, 0303 health sciences, medicine.diagnostic_test, Carica, business.industry, food and beverages, Q01 - Sciences et technologies alimentaires - Considérations générales, 04 agricultural and veterinary sciences, Microstructure, Carotenoids, 040401 food science, Unsaturated Oils, Fats, Unsaturated, Rats, Lipid profile, Wistar rats, chemistry, Food processing, Carotenoid bioconversion, business, Food Science
Abstract: International audience; Many studies indicate that food matrix microstructure and type of dietary oil or fat play a key role in carotenoid absorption. Therefore, this work was designed to highlight the relationship between processed food microstructure and carotenoid absorption. This study aimed to evaluate the consumption of a carotenoid-rich fruit snack on lipid profile, glycemia and especially on carotenoid absorption/bioconversion in Wistar rats. Animals were fed with mixtures based on vacuum-fried papaya chips with either soy oil (PC-S) or palm oil (PC-P) during 7 days, receiving 0.29 mg lycopene/kg/day and 0.35 mg total carotenoids/kg/day. Lycopene and retinoids were analyzed in plasma and liver of rats by HPLC-DAD. Results showed that the consumption of mixtures based on papaya chips did not affect the lipid profile or glycemia in rat plasma, regardless the type of oil. Wide-field and confocal microscopy analyses of food matrix helped to understand why lycopene accumulation in the liver was higher (p
Published: 2021

7. Photoperiod-dependent transcriptional modifications in key metabolic pathways in Coffea arabica

Author: Djerrab, Doâa, Bertrand, Benoît, Breitler, Jean-Christophe, Léran, Sophie, Dechamp, Eveline, Campa, Claudine, Barrachina, Célia, Conejero, Geneviève, Etienne, Hervé, Sulpice, Ronan, UMR - Interactions Plantes Microorganismes Environnement (UMR IPME), Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Diversité, adaptation, développement des plantes (UMR DIADE), Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Institut de Génomique Fonctionnelle - Montpellier GenomiX (IGF MGX), Institut de Génomique Fonctionnelle (IGF), Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Plateforme d'histocytologie et d'imagerie cellulaire végétale (PHIV), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), National University of Ireland [Galway] (NUI Galway), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD [France-Sud]), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Plant Health Institute of Montpellier (UMR PHIM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de Montpellier (UM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-BioCampus (BCM), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, and Baracco, Chantal
Subjects: Arn messager, Arabidopsis thaliana, [SDV]Life Sciences [q-bio], Photoperiod, F60 - Physiologie et biochimie végétale, coffee, Arabidopsis, Coffea, Genes, Plant, F30 - Génétique et amélioration des plantes, Gene Expression Regulation, Plant, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, Expression des gènes, [SDV.BV] Life Sciences [q-bio]/Vegetal Biology, Photopériodicité, AcademicSubjects/SCI01210, food and beverages, Coffea arabica, rhythmic genes, Rythme circadien, [SDV] Life Sciences [q-bio], core clock, transcriptome, Metabolic Networks and Pathways, Research Paper
Abstract: Photoperiod length induces in temperate plants major changes in growth rates, morphology and metabolism with, for example, modifications in the partitioning of photosynthates to avoid starvation at the end of long nights. However, this has never been studied for a tropical perennial species adapted to grow in a natural photoperiod close to 12 h/12 h all year long. We grew Coffea arabica L., an understorey perennial evergreen tropical species in its natural 12 h/12 h and in a short 8 h/16 h photoperiod, and we investigated its responses at the physiological, metabolic and transcriptomic levels. The expression pattern of rhythmic genes, including core clock genes, was affected by changes in photoperiod. Overall, we identified 2859 rhythmic genes, of which 89% were also rhythmic in Arabidopsis thaliana L. Under short-days, plant growth was reduced, and leaves were thinner with lower chlorophyll content. In addition, secondary metabolism was also affected with chlorogenic acid and epicatechin levels decreasing, and in agreement, the genes involved in lignin synthesis were overexpressed and those involved in the flavanol pathway were underexpressed. Our results show that the 8 h/16 h photoperiod induces drastic changes in morphology, metabolites and gene expression, and the responses for gene expression are similar to those observed in the temperate annual A. thaliana species. Short photoperiod induces drastic changes in gene expression, metabolites and leaf structure, some of these responses being similar to those observed in A. thaliana.
Published: 2021

8. Transcriptome profiling of laser-captured crown root primordia reveals new pathways activated during early stages of crown root formation in rice

Author: Jérémy Lavarenne, Mathieu Gonin, Antony Champion, Marie Javelle, Hélène Adam, Jacques Rouster, Geneviève Conejéro, Marc Lartaud, Jean-Luc Verdeil, Laurent Laplaze, Christophe Sallaud, Mikael Lucas, Pascal Gantet, Diversité, adaptation, développement des plantes (UMR DIADE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Limagrain Centre de Recherche – Route d’Ennezat – 63720 Chappes, France, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Plateforme d'histocytologie et d'imagerie cellulaire végétale (PHIV), Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), CIFRE fellowship from the Association Nationale de la Recherche Technologique, France (2015/0195), CGIAR, Limagrain, ANR-10-LABX-0001,AGRO,Agricultural Sciences for sustainable Development(2010), ANR-17-CE20-0028,MASTEROOT,Détermination de gènes régulateurs maîtres du développement des racines coronaires pour l'ingénierie de la tolérance au déficit hydrique des céréales.(2017), ANR-10-INBS-0004,France-BioImaging,Développment d'une infrastructure française distribuée coordonnée(2010), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro
Subjects: Transcription, Genetic, [SDV]Life Sciences [q-bio], génomique fonctionnelle, Gene Expression, F62 - Physiologie végétale - Croissance et développement, Plant Science, Plant Roots, Biochemistry, F30 - Génétique et amélioration des plantes, Système racinaire, Plant Growth Regulators, Cell Wall, Gene Expression Regulation, Plant, Expression des gènes, Plant Proteins, Plant Anatomy, phytogénétique, Eukaryota, Genomics, Plants, Experimental Organism Systems, Optical Equipment, Medicine, Engineering and Technology, Transcriptome Analysis, Research Article, Science, Arabidopsis Thaliana, Equipment, Oryza sativa, Brassica, Research and Analysis Methods, Model Organisms, stomatognathic system, Plant and Algal Models, DNA-binding proteins, Genetics, Gene Regulation, Grasses, Stade de développement végétal, Lasers, Gene Expression Profiling, Organisms, Biology and Life Sciences, Computational Biology, Proteins, Oryza, Genome Analysis, Regulatory Proteins, Lateral Roots, Animal Studies, Rice, Transcriptome, Transcription Factors
Abstract: International audience; Crown roots constitute the main part of the rice root system. Several key genes involved in crown root initiation and development have been identified by functional genomics approaches. Nevertheless, these approaches are impaired by functional redundancy and mutant lethality. To overcome these limitations, organ targeted transcriptome analysis can help to identify genes involved in crown root formation and early development. In this study, we generated an atlas of genes expressed in developing crown root primordia in comparison with adjacent stem cortical tissue at three different developmental stages before emergence, using laser capture microdissection. We identified 3975 genes differentially expressed in crown root primordia. About 30% of them were expressed at the three developmental stages, whereas 10.5%, 19.5% and 12.8% were specifically expressed at the early, intermediate and late stages, respectively. Sorting them by functional ontology highlighted an active transcriptional switch during the process of crown root primordia formation. Crossanalysis with other rice root development-related datasets revealed genes encoding transcription factors, chromatin remodeling factors, peptide growth factors, and cell wall remodeling enzymes that are likely to play a key role during crown root primordia formation. This atlas constitutes an open primary data resource for further studies on the regulation of crown root initiation and development.
Published: 2020

9. A plasma membrane nanoplatform ensures signal specificity during osmotic signaling in plants

Author: Yvon Jaillais, Xavier Dumont, Philippe Nacry, V. Bayle, Matthieu Pierre Platre, Jean-Bernard Fiche, C. Francis, Marija Smokvarska, Christophe Maurel, Carine Alcon, Marcelo Nollmann, Alexandre Martinière, Baracco, Chantal, Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Reproduction et développement des plantes (RDP), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre de Biochimie Structurale [Montpellier] (CBS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Plateforme d'histocytologie et d'imagerie cellulaire végétale (PHIV), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL)
Subjects: 0106 biological sciences, chemistry.chemical_classification, 0303 health sciences, Reactive oxygen species, NADPH oxidase, Osmotic concentration, biology, [SDV]Life Sciences [q-bio], Cell, GTPase, Stimulus (physiology), 01 natural sciences, Cell biology, [SDV] Life Sciences [q-bio], 03 medical and health sciences, medicine.anatomical_structure, chemistry, Auxin, Second messenger system, medicine, biology.protein, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, [SDV.BV] Life Sciences [q-bio]/Vegetal Biology, 030304 developmental biology, 010606 plant biology & botany
Abstract: In the course of their growth and development plants have to constantly perceive and react to their environment. This is achieved in cells, by the coordination of complex combinatorial signaling networks. However, how signal integration and specificity are achieved in this context is unknown. With a focus on the hyperosmotic stimulus, we use live super-resolution light imaging methods to demonstrate that a Rho GTPase, Rho-of-Plant 6 (ROP6), forms stimuli-dependant nanodomains within the PM. These nanodomains are necessary and sufficient to transduce production of reactive oxygen species (ROS),that act as secondary messengers and trigger several plant adaptive responses to osmotic constraints. Furthermore, ROP6 activation triggers the nanoclustering of two NADPH oxidases that subsequently generates ROS. ROP6 nanoclustering is also needed for cell surface auxin signaling, but short-time auxin treatment does not induce ROS accumulation. We show that auxin-induced ROP6 nanodomains, unlike osmotically-driven ROP6 clusters, do not recruit the NADPH oxidase, RBOHD. Together, our results suggest that Rho GTPase nano-partitioning at the PM ensure signal specificity downstream of independent stimuli.
Published: 2020

10. FT-GPI, a highly sensitive and accurate predictor of GPI-anchored proteins, reveals the composition and evolution of the GPI proteome in Plasmodium species

Author: Lena M. Sauer, Rodrigo Canovas, Daniel Roche, Hosam Shams-Eldin, Patrice Ravel, Jacques Colinge, Ralph T. Schwarz, Choukri Ben Mamoun, Eric Rivals, Emmanuel Cornillot, Institut de Biologie Computationnelle (IBC), Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Institute for Virology [Marburg], Philipps Universität Marburg = Philipps University of Marburg, Méthodes et Algorithmes pour la Bioinformatique (MAB), Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Institut de Recherche en Cancérologie de Montpellier (IRCM - U1194 Inserm - UM), CRLCC Val d'Aurelle - Paul Lamarque-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), and Yale School of Medicine [New Haven, Connecticut] (YSM)
Subjects: GPI-proteome, GPI-anchored protein, Infectious Diseases, FT-GPI, [SDV]Life Sciences [q-bio], Plasmodium falciparum, P. vivax, Parasitology, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology
Abstract: Background Protozoan parasites are known to attach specific and diverse group of proteins to their plasma membrane via a GPI anchor. In malaria parasites, GPI-anchored proteins (GPI-APs) have been shown to play an important role in host–pathogen interactions and a key function in host cell invasion and immune evasion. Because of their immunogenic properties, some of these proteins have been considered as malaria vaccine candidates. However, identification of all possible GPI-APs encoded by these parasites remains challenging due to their sequence diversity and limitations of the tools used for their characterization. Methods The FT-GPI software was developed to detect GPI-APs based on the presence of a hydrophobic helix at both ends of the premature peptide. FT-GPI was implemented in C ++and applied to study the GPI-proteome of 46 isolates of the order Haemosporida. Using the GPI proteome of Plasmodium falciparum strain 3D7 and Plasmodium vivax strain Sal-1, a heuristic method was defined to select the most sensitive and specific FT-GPI software parameters. Results FT-GPI enabled revision of the GPI-proteome of P. falciparum and P. vivax, including the identification of novel GPI-APs. Orthology- and synteny-based analyses showed that 19 of the 37 GPI-APs found in the order Haemosporida are conserved among Plasmodium species. Our analyses suggest that gene duplication and deletion events may have contributed significantly to the evolution of the GPI proteome, and its composition correlates with speciation. Conclusion FT-GPI-based prediction is a useful tool for mining GPI-APs and gaining further insights into their evolution and sequence diversity. This resource may also help identify new protein candidates for the development of vaccines for malaria and other parasitic diseases.
Published: 2023

11. Human appropriation of net primary production as driver of change in landscape‐scale vertebrate richness

Author: Karina Reiter, Christoph Plutzar, Dietmar Moser, Philipp Semenchuk, Karl‐Heinz Erb, Franz Essl, Andreas Gattringer, Helmut Haberl, Fridolin Krausmann, Bernd Lenzner, Johannes Wessely, Sarah Matej, Robin Pouteau, Stefan Dullinger, University of Vienna [Vienna], Universität für Bodenkultur Wien = University of Natural Resources and Life [Vienne, Autriche] (BOKU), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)
Subjects: Net primary production, Human appropriation, Global and Planetary Change, Ecology, Biodiversity loss, Land use, Species–energy relationship, Extinction, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Ecology, Evolution, Behavior and Systematics, Species richness, Threatened species
Abstract: International audience; Aim: Land use is the most pervasive driver of biodiversity loss. Predicting its impact on species richness (SR) is often based on indicators of habitat loss. However, the degradation of habitats, especially through land-use intensification, also affects species. Here, we evaluate whether an integrative metric of land-use intensity, the human appropriation of net primary production, is correlated with the decline of SR in used landscapes across the globe. Location Global. Time period Present. Major taxa studied Birds, mammals and amphibians. Methods: Based on species range maps (spatial resolution: 20 km × 20 km) and an area-of-habitat approach, we calibrated a “species–energy model” by correlating the SR of three groups of vertebrates with net primary production and biogeographical covariables in “wilderness” areas (i.e., those where available energy is assumed to be still at pristine levels). We used this model to project the difference between pristine SR and the SR corresponding to the energy remaining in used landscapes (i.e., SR loss expected owing to human energy extraction outside wilderness areas). We validated the projected species loss by comparison with the realized and impending loss reconstructed from habitat conversion and documented by national Red Lists. Results Species–energy models largely explained landscape-scale variation of mapped SR in wilderness areas (adjusted R2-values: 0.79–0.93). Model-based projections of SR loss were lower, on average, than reconstructed and documented ones, but the spatial patterns were correlated significantly, with stronger correlation in mammals (Pearson's r = 0.68) than in amphibians (r = 0.60) and birds (r = 0.57). Main conclusions: Our results suggest that the human appropriation of net primary production is a useful indicator of heterotrophic species loss in used landscapes, hence we recommend its inclusion in models based on species–area relationships to improve predictions of land-use-driven biodiversity loss.
Published: 2023

12. Preventive nutritional supplementation with furan fatty acid in a DIO mouse model increases muscle mass and reduces metabolic disorders

Author: Laetitia Dore, Erwann Durand, Béatrice Bonafos, Jatuporn Chaiyut, Laurent Vaysse, Siriluck Liengprayoon, Sylvie Gaillet, Laurence Pessemesse, Karen Lambert, Christelle Bertrand-Gaday, Charles Coudray, Ariane Sultan, François Casas, Christine Feillet-Coudray, Dynamique Musculaire et Métabolisme (DMEM), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Démarche intégrée pour l'obtention d'aliments de qualité (UMR QualiSud), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Avignon Université (AU)-Université de La Réunion (UR)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Département Performances des systèmes de production et de transformation tropicaux (Cirad-PERSYST), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Kasetsart University (KU), BioWooEB (UPR BioWooEB), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM), Physiologie & médecine expérimentale du Cœur et des Muscles [U 1046] (PhyMedExp), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), and This work was supported by the French National Research Institute for Agriculture, Food and Environment (INRAE), by the French Lipid Nutrition Group and by the by the Key Initiative Food & Health of MUSE (Montpellier University of Excellence). Laetitia Dore was funded by Agence Régionale de Santé Occitanie.
Subjects: Pharmacology, Liver, [SDV]Life Sciences [q-bio], Furan fatty acids, Skeletal muscle, General Medicine, Obesity, Insulin sensitivity, Mitochondria
Abstract: International audience; The increase in obesity has become a major global health problem and is associated with numerous metabolic dysfunctions. Furan fatty acids (FuFAs) are minor lipids present in our diet. Recently we showed that FuFA-F2 extracted from Hevea brasiliensis latex stimulates muscle anabolism in mice in vitro and in vivo, mimicking in part physical activity. While skeletal muscle is essential for energy metabolism and is the predominant site of insulin-mediated glucose uptake in the post prandial state, our results suggested that FuFA-F2 could have favorable effects against obesity. The aim of this work was therefore to study whether a preventive nutritional supplementation with FuFA-F2 (40 mg or 110 mg/day/kg of body weight) in a diet-induced obesity (DIO) mouse model may have beneficial effects against obesity and liver and skeletal muscle metabolic dysfunction. We showed that 12 weeks of FuFA-F2 supplementation in DIO mice decreased fat mass, increased lean mass and restored normal energy expenditure. In addition, we found that FuFA-F2 improved insulin sensitivity. We revealed that FuFA-F2 increased muscle mass but had no effect on mitochondrial function and oxidative stress in skeletal muscle. Furthermore, we observed that FuFA-F2 supplementation reduced liver steatosis without impact on mitochondrial function and oxidative stress in liver. Our findings demonstrated for the first time that a preventive nutritional supplementation with a furan fatty acid in DIO mice reduced metabolic disorders and was able to mimic partly the positive effects of physical activity. This study highlights that nutritional FuFA-F2 supplementation could be an effective approach to treat obesity and metabolic syndrome.
Published: 2023

13. Spatio-temporal analysis of strawberry architecture: insights into the control of branching and inflorescence complexity

Author: Marc Labadie, Karine Guy, Marie-Noëlle Demené, Yves Caraglio, Gaetan Heidsieck, Amelia Gaston, Christophe Rothan, Yann Guédon, Christophe Pradal, Béatrice Denoyes, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Biologie du fruit et pathologie (BFP), Université de Bordeaux (UB)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Invenio, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Scientific Data Management (ZENITH), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM), and Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)
Subjects: plant architecture, Physiology, OpenAlea, [SDV]Life Sciences [q-bio], branching, multiscale tree graph, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, Plant Science, Fragaria × ananassa, hidden hybrid Markov/semi-Markov chain
Abstract: Plant architecture plays a major role in flowering and therefore in crop yield. Attempts to visualize and analyse strawberry plant architecture have been few to date. Here, we developed open-source software combining two- and three-dimensional representations of plant development over time along with statistical methods to explore the variability in spatio-temporal development of plant architecture in cultivated strawberry. We applied this software to six seasonal strawberry varieties whose plants were exhaustively described monthly at the node scale. Results showed that the architectural pattern of the strawberry plant is characterized by a decrease of the module complexity between the zeroth-order module (primary crown) and higher-order modules (lateral branch crowns and extension crowns). Furthermore, for each variety, we could identify traits with a central role in determining yield, such as date of appearance and number of branches. By modeling the spatial organization of axillary meristem fate on the zeroth-order module using a hidden hybrid Markov/semi-Markov mathematical model, we further identified three zones with different probabilities of production of branch crowns, dormant buds, or stolons. This open-source software will be of value to the scientific community and breeders in studying the influence of environmental and genetic cues on strawberry architecture and yield.
Published: 2023

14. The ecological causes of functional distinctiveness in communities

Author: Munoz, François, Klausmeier, Christopher A, Gaüzère, Pierre, Kandlikar, Gaurav, Litchman, Elena, Mouquet, Nicolas, Ostling, Annette, Thuiller, Wilfried, Algar, Adam C, Auber, Arnaud, Cadotte, Marc W, Delalandre, Léo, Denelle, Pierre, Enquist, Brian J, Fortunel, Claire, Grenié, Matthias, Loiseau, Nicolas, Mahaut, Lucie, Maire, Anthony, Mouillot, David, Pimiento, Catalina, Violle, Cyrille, Kraft, Nathan J B, Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Michigan State University [East Lansing], Michigan State University System, Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), University of Missouri [Columbia] (Mizzou), University of Missouri System, Laboratoire Service d' Experimentations Aquacoles [Palavas les Flots] (LSEA MARBEC), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), University of Texas at Austin [Austin], Laboratoire Environnement de Conception & Architecture (LECA), Université Paris-Saclay-Département Systèmes et Circuits Intégrés Numériques (DSCIN), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Lakehead University, Laboratoire Ressources Halieutiques (LRH), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), University of Toronto at Scarborough, Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Georg-August-University = Georg-August-Universität Göttingen, University of Arizona, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), German Centre for Integrative Biodiversity Research (iDiv), Centre de Synthèse et d’Analyse sur la Biodiversité (CESAB), Fondation pour la recherche sur la Biodiversité (FRB), Laboratoire National d’Hydraulique et Environnement (EDF R&D LNHE), EDF R&D (EDF R&D), EDF (EDF)-EDF (EDF), Universität Zürich [Zürich] = University of Zurich (UZH), University of California (UC), University of Zurich, and Munoz, François
Subjects: Ecology, source, Evolution, Community assembly, Fitness landscape, 10125 Paleontological Institute and Museum, 1105 Ecology, Evolution, Behavior and Systematics, 560 Fossils & prehistoric life, Behavior and Systematics, [SDE]Environmental Sciences, Source-sink dynamics, sink dynamics, Coexistence, Ecological interactions, Functional traits
Abstract: International audience; Recent work has shown that evaluating functional trait distinctiveness, the average trait distance of a species to other species in a community offers promising insights into biodiversity dynamics and ecosystem functioning. However, the ecological mechanisms underlying the emergence and persistence of functionally distinct species are poorly understood. Here, we address the issue by considering a heterogeneous fitness landscape whereby functional dimensions encompass peaks representing trait combinations yielding positive population growth rates in a community. We identify four ecological cases contributing to the emergence and persistence of functionally distinct species. First, environmental heterogeneity or alternative phenotypic designs can drive positive population growth of functionally distinct species. Second, sink populations with negative population growth can deviate from local fitness peaks and be functionally distinct. Third, species found at the margin of the fitness landscape can persist but be functionally distinct. Fourth, biotic interactions (positive or negative) can dynamically alter the fitness landscape. We offer examples of these four cases and guidelines to distinguish between them. In addition to these deterministic processes, we explore how stochastic dispersal limitation can yield functional distinctiveness. Our framework offers a novel perspective on the relationship between fitness landscape heterogeneity and the functional composition of ecological assemblages.
Published: 2023

15. Why woody plant modularity through time and space must be integrated in fire research?

Author: Marco Antonio Chiminazzo, Tristan Charles-Dominique, Davi Rodrigo Rossatto, Aline Bertolosi Bombo, Alessandra Fidelis, Universidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University (UNESP), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)
Subjects: Miconia albicans, Shrub, Plant architecture, Savanna, [SDE]Environmental Sciences, Grassy biomes, Resprouting, Climate change, Plant Science, Growth form, Fire
Abstract: Different ecosystems evolved and are maintained by fire, with their vegetation hosting species with a wide diversity of persistence strategies allowing them to insulate their body and resprout new branches after fire disturbance. Changes in fire regime are predicted due to climate change, either by promoting more frequent and/or severe fires or by reducing the number fire events due to the limitation of fuel load. Predicting the future of fire-driven ecosystems is a complex task as species’ survival depends on many factors that vary in space and time. Since plants are constantly experiencing new environments as they grow through meristem development, woody plant modularity, modules morpho-physiological aspects and their integration should be considered when investigating species strategies in fire-prone ecosystems: according to their position and their tissue composition, plants’ modules experience fire differently and will contribute differently to other modules and the whole plant survival, with consequences cascading over the overall vegetation structure. Growth modules may hold the key to understanding how fast plants can get protected from fire, ultimately helping us to predict which species will persist across changing fire regimes. We present an empirical example showing how different fire-return intervals translate into distinct pressures on the timing, protection, and location of modules and discuss how these can translate into modifications in the vegetation structure due to climate change.
Published: 2023

16. Services provided by multifunctional agroecosystems : Questions, obstacles and solutions

Author: Alexia Stokes, Géraldine Bocquého, Pascal Carrere, Raphaël Conde Salazar, Marc Deconchat, Léo Garcia, Antoine Gardarin, Christian Gary, Cédric Gaucherel, Mamadou Gueye, Mickael Hedde, Françoise Lescourret, Zhun Mao, Nicolas Quérou, Gabrielle Rudi, Jean-Michel Salles, Raphael Soubeyran, Julie Subervie, Aude Vialatte, Fabrice Vinatier, Marielle Thomas, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Bureau d'Économie Théorique et Appliquée (BETA), AgroParisTech-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité Mixte de Recherche sur l'Ecosystème Prairial - UMR (UREP), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Dynamiques et écologie des paysages agriforestiers (DYNAFOR), École nationale supérieure agronomique de Toulouse (ENSAT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Agrosystèmes Biodiversifiés (UMR ABSys), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM), Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Agronomie, AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire d'Economie de Dauphine (LEDa), Institut de Recherche pour le Développement (IRD)-Université Paris Dauphine-PSL, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Centre de Géopolitique de l’Energie et des Matières Premières (LEDA-CGEMP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Paris Dauphine-PSL, Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Unité de recherche Plantes et Systèmes de Culture Horticoles (PSH), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre d'Economie de l'Environnement - Montpellier (CEE-M), Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Gestion de l'Eau, Acteurs, Usages (UMR G-EAU), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Institut de Recherche pour le Développement (IRD)-AgroParisTech-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH), Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Unité de Recherches Animal et Fonctionnalités des Produits Animaux (URAFPA), Université de Lorraine (UL)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), We acknowledge the funding and support provided by the INRAE Metaprogram ‘Ecosystem Services’, (https://colloque.inrae.fr/metaprograms-workshops_eng/Metaprograms/EcoServ). In particular, we thank Dr Guy Richard (INRAE, France) for his dynamic leadership of this research program. AS, MZ and CG received funding from the EU Horizon Europe Programme under grant agreement number 101059498 (eco2adapt: Ecosystem-based Adaptation and Changemaking to Shape, Protect and Maintain the Resilience of Tomorrow’s Forests)., and European Project: 101059498 ,eco2adapt
Subjects: Environmental Engineering, Social-ecological system, Economics, Ecosystem services, Biodiversity, Management, Monitoring, Policy and Law, Farm, [SHS.ECO]Humanities and Social Sciences/Economics and Finance, [SDE.ES]Environmental Sciences/Environmental and Society, Nature and Landscape Conservation, Model, [SHS]Humanities and Social Sciences
Abstract: International audience; Highlights: • We investigated multifunctionality and ecosystem services in agroecosystems. • 18 research questions, obstacles and solutions were identified. • Future research must integrate knowledge from different sectors and communities. • Biodiversity is a key factor to explore and incorporate into modelling approaches. • Promoting dialogue, standardization and data-sharing would enhance progress.Abstract:Agroecosystems are facing new challenges in the context of a growing and increasingly interconnected human population, and a paradigm shift is needed to successfully address the many complex questions that these challenges will generate. The transition to providing multiple services within an agroecosystem is a starting point for heightened multifunctionality, however, there is still hesitation among stakeholders about moving towards multi-service systems, largely because of the lack of knowledge linking productivity and multifunctionality. We reason that much of this reticence could be overcome through a better understanding of stakeholder requirements and innovative transdisciplinary research extended in the dimensions of time and space. We assembled experts in France to identify priority research questions for co-constructing projects with stakeholders. We identified 18 key questions, as well as the obstacles that hinder their resolution and propose potential solutions for tackling these obstacles. We illustrate that research into agroecosystem multifunctionality and service production must be a hugely collaborative effort and needs to integrate knowledge from different sectors and communities. Promoting dialogue, standardization and data-sharing would enhance transdisciplinary progress. Biodiversity is highlighted as a key factor to explore and incorporate into modelling approaches, but major advances must be made in the understanding of dynamic changes in the biodiversity-function-service nexus across landscapes. Resolving these research questions will allow us to translate knowledge into decision objectives, identify adaptation and tipping points in agroecosystems and develop social-ecological economic pathways that are adaptive over time.
Published: 2023

17. Geographical variation in the trait‐based assembly patterns of multitrophic invertebrate communities

Author: Diane S. Srivastava, A. Andrew M. MacDonald, Valério D. Pillar, Pavel Kratina, Vanderlei J. Debastiani, Laura Melissa Guzman, Mark Kurtis Trzcinski, Olivier Dézerald, Ignacio M. Barberis, Paula M. de Omena, Gustavo Q. Romero, Fabiola Ospina‐Bautista, Nicholas A. C. Marino, Céline Leroy, Vinicius F. Farjalla, Barbara A. Richardson, Ana Z. Gonçalves, Bruno Corbara, Jana S. Petermann, Michael J. Richardson, Michael C. Melnychuk, Merlijn Jocqué, Jacqueline T. Ngai, Stanislas Talaga, Gustavo C. O. Piccoli, Guillermo Montero, Kathryn R. Kirby, Brian M. Starzomski, Régis Céréghino, University of British Columbia (UBC), Laboratoire Ecologie Fonctionnelle et Environnement (LEFE), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Centre de Synthèse et d’Analyse sur la Biodiversité (CESAB), Fondation pour la recherche sur la Biodiversité (FRB), Universidade Federal do Rio Grande do Norte [Natal] (UFRN), Queen Mary University of London (QMUL), Dynamique et durabilité des écosystèmes : de la source à l’océan (DECOD), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Ecologie des forêts de Guyane (ECOFOG), Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF)-Institut National de la Recherche Agronomique (INRA)-Université des Antilles et de la Guyane (UAG)-Centre National de la Recherche Scientifique (CNRS), Universidad Nacional de Rosario [Santa Fe], Universidade Estadual de Campinas = University of Campinas (UNICAMP), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Ecologie des forêts de Guyane (UMR ECOFOG), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Université de Guyane (UG)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire Microorganismes : Génome et Environnement (LMGE), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Institut Pasteur de la Guyane, Réseau International des Instituts Pasteur (RIIP), and ANR-10-LABX-0025,CEBA,CEnter of the study of Biodiversity in Amazonia(2010)
Subjects: [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, Bromeliad invertebrates, Trait-based ecology, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, Habitat filtering, Ecology, Evolution, Behavior and Systematics, Functional biogeography
Abstract: International audience; It has been argued that the mechanisms structuring ecological communities may be more generalizable when based on traits than on species identities. If so, patterns in the assembly of community-level traits along environmental gradients should be similar in different places in the world. Alternatively, geographical change in the species pool and regional variation in climate might result in site-specific relationships between community traits and local environments. These competing hypotheses are particularly untested for animal communities. Here we test the geographical constancy of trait-based assembly patterns using a widespread multi-trophic community: aquatic macroinvertebrates within bromeliads. We used data on 615 invertebrate taxa from 1,656 bromeliads in 26 field sites from Mexico to Argentina. We summarized invertebrate traits with four orthogonal axes, and used these trait axes to examine trait convergence and divergence assembly patterns along three environmental gradients: detrital biomass and water volume in bromeliads, and canopy cover over bromeliads. We found no overall signal of trait-based assembly patterns along any of the environmental gradients. However, individual sites did show trait convergence along detrital and water gradients, and we built predictive models to explore these site differences. Sites that showed trait convergence along detrital gradients were all north of the Northern Andes. This geographical pattern may be related to phylogeographical differences in bromeliad morphology. Bromeliads with low detritus were dominated by detritivorous collectors and filter feeders, where those with high detritus had more sclerotized and predatory invertebrates. Sites that showed the strongest trait convergence along gradients in bromeliad water were in regions with seasonal precipitation. In such sites, bromeliads with low water were dominated by soft-bodied, benthic invertebrates with simple life cycles. In less seasonal sites, traits associated with short-term desiccation resistance, such as hard exoskeletons, were more important. In summary, we show that there are strong geographical effects on the trait-based assembly patterns of this invertebrate community, driven by the biogeography of their foundational plant species as well as by regional climate. We suggest that inclusion of biogeography and climate in trait-based community ecology could help make it a truly general theory.
Published: 2022

18. Estimating forest above‐ground biomass with terrestrial laser scanning: Current status and future directions

Author: Miro Demol, Hans Verbeeck, Bert Gielen, John Armston, Andrew Burt, Mathias Disney, Laura Duncanson, Jan Hackenberg, Daniel Kükenbrink, Alvaro Lau, Pierre Ploton, Artie Sewdien, Atticus Stovall, Stéphane Momo Takoudjou, Liubov Volkova, Christopher Weston, Verginia Wortel, Kim Calders, Universiteit Gent = Ghent University (UGENT), University of Antwerp (UA), University of Maryland [Baltimore], Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Université de Yaoundé I, Center for Agricultural Research in Suriname (CELOS), and European Project: 757526
Subjects: Quantitative Structure Modelling, Terrestrial laser scanning, carbon, Ecological Modeling, quantitative Structure Modelling, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, allometric scaling models, Carbon, Chemistry, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, Laboratory of Geo-information Science and Remote Sensing, Above-ground biomass, Allometric scaling models, Laboratorium voor Geo-informatiekunde en Remote Sensing, terrestrial laser scanning, 3D reconstruction, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, REDD+, Biology, Ecology, Evolution, Behavior and Systematics, above-ground biomass
Abstract: International audience; Improving the global monitoring of above-ground biomass (AGB) is crucial for forest management to be effective in climate mitigation. In the last decade, methods have been developed for estimating AGB from terrestrial laser scanning (TLS) data. TLS-derived AGB estimates can address current uncertainties in allometric and Earth observation (EO) methods that quantify AGB. We assembled a global dataset of TLS scanned and consecutively destructively measured trees from a variety of forest conditions and reconstruction pipelines. The dataset comprised 391 trees from 111 species with stem diameter ranging 8.5 to 180.3 cm and AGB ranging 13.5–43,950 kg. TLS-derived AGB closely agreed with destructive values (bias 1,000 kg). More effort should go to further understanding and constraining several TLS error sources. We currently lack an objective method of evaluating point cloud quality for tree volume reconstruction, hindering the development of reconstruction algorithms and presenting a bottleneck for tracking down the error sources identified in our synthesis. Since quantifying AGB with TLS requires only a fraction of the efforts as compared to destructive harvesting, TLS-calibrated ASMs can become a powerful tool in AGB upscaling. TLS will be critical for calibrating/validating scheduled and launched remote sensing initiatives aiming at global AGB mapping.
Published: 2022

19. Frugivory and seed dispersal in the Cerrado: Network structure and defaunation effects

Author: Rodrigo Béllo Carvalho, Yadvinder Malhi, Imma Oliveras Menor, School of Geography and the Environment [Oxford] (SoGE), University of Oxford, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)
Subjects: Large-bodied vertebrates, Body mass, Seed dispersal networks, Savanna, Systematic literature review, Fruit size, Functional-loss, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Brazil, Ecology, Evolution, Behavior and Systematics
Abstract: International audience; Seed dispersal is a fundamental process that is highly threatened by the rapid decline of large-bodied frugivores worldwide. The Brazilian Cerrado, the largest savanna in the world, represents an ideal site for investigating seed dispersal because of its biodiversity, environmental challenges, and knowledge shortfalls. We performed a systematic literature review to analyze the seed dispersal network in the Cerrado and the potential impacts of the defaunation of large-bodied frugivores on it. We considered network metrics, calculated the defaunation index of the frugivore assemblage, and compared traits among different fruit-sized plants and their respective dispersers in the network. We retrieved 1565 interactions involving 193 plant species and 270 animal species. Results show that the Cerrado seed dispersal network is slightly nested and considerably modular, dominated by small- to medium-sized generalist species, such as passerines, marsupials, and mesocarnivores. Nonetheless, large-bodied frugivores like the lowland tapir have a key role in the network due to their great foraging and network integration capacity. The Cerrado frugivore assemblage is moderately defaunated, with possible effects in its interactions with large-fruited plants. The Cerrado's defaunation and functional loss of large vertebrates deserve urgent attention to further understand the impacts on seed dispersal mechanisms and ecosystem functioning.
Published: 2023

20. Weak phylogenetic and habitat effects on root trait variation of 218 Neotropical tree species

Author: Monique Weemstra, Oscar J. Valverde-Barrantes, Claire Fortunel, Erick M. Oblitas Mendoza, Eduardo M. B. Prata, Magno Vásquez Pilco, Alberto Vicentini, Jason Vleminckx, Christopher Baraloto, Florida International University [Miami] (FIU), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), National Institute for Amazonian Research, Instituto Nacional de Pesquisas da Amazônia (INPA), Universidad Nacional de la Amazonía Peruana [Loreto, Perou] (UNAP), Université libre de Bruxelles (ULB), ANR-10-LABX-0025,CEBA,CEnter of the study of Biodiversity in Amazonia(2010), and ANR-13-BSV7-0009,NEBEDIV,Le rôle des ennemis naturels dans la diversité béta des arbres tropicaux(2013)
Subjects: Amazon forest functional diversity phylogeny belowground traits root economics space tropical forests, Global and Planetary Change, Amazon forest, Ecology, Tropical forests, [SDE]Environmental Sciences, Root economics space, Forestry, Environmental Science (miscellaneous), Functional diversity, Phylogeny, Nature and Landscape Conservation, Belowground traits
Abstract: IntroductionTropical forests harbor a large diversity of closely related tree species that can thrive across habitats. This biodiversity has been found to correspond to large functional diversity in aboveground traits, and likely also relates to belowground trait variation. Globally, root trait (co-)variation is driven by different belowground resource strategies of species, environmental variation, and phylogeny; however, these patterns mostly reflect observations from temperate biomes and remain unconfirmed in tropical trees. We examine phylogenetic and environmental effects on root trait (co-)variation of trees across habitats in an Amazonian rainforest.MethodsRoots of 218 tree species from ten dominant families were sampled across three major habitats near Manaus, Brazil. We quantified five morphological and architectural root traits to (i) investigate how they reflected different resource strategies across species, (ii) compare them between families and superorders to test phylogenetic effects, and (iii) compare them between habitats to determine environmental effects on root trait expressions and variability.ResultsRoot traits discriminated species along a tradeoff between root diameter and root branching and, secondly, due to variation in root tissue density. Our results further show weak phylogenetic effects on tropical tree root variation, for example, families from the same superorder showed large divergence in their root traits, while those from different superorders often overlapped in their root morphology and architecture. Root traits differed significantly between habitats but habitat type had only little effect on overall root trait variation.DiscussionOur work suggests that the dimensions and drivers that underlie (co-)variation in tropical root traits may differ from global patterns defined by mostly temperate datasets. Due to (a)biotic environmental differences, different root trait dimensions may underlie the belowground functional diversity in (Neo)tropical forests, and we found little evidence for the strong phylogenetic conservatism observed in root traits in temperate biomes. We highlight important avenues for future research on tropical roots in order to determine the degree of, and shifts in functional diversity belowground as communities and environments change in tropical forests.
Published: 2023

21. Thresholds for persistent leaf photochemical damage predict plant drought resilience in a tropical rainforest

Author: Claire Fortunel, Clément Stahl, Sabrina Coste, Camille Ziegler, Géraldine Derroire, Sébastien Levionnois, Isabelle Maréchaux, Damien Bonal, Bruno Hérault, Fabien H. Wagner, Lawren Sack, Jérôme Chave, Patrick Heuret, Steven Jansen, Grace John, Christine Scoffoni, Santiago Trueba, Megan K. Bartlett, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Ecologie des forêts de Guyane (UMR ECOFOG), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Université de Guyane (UG)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), SILVA (SILVA), AgroParisTech-Université de Lorraine (UL)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Forêts et Sociétés (UPR Forêts et Sociétés), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Institut National Polytechnique Félix Houphouët-Boigny, University of California (UC), Evolution et Diversité Biologique (EDB), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Universität Ulm - Ulm University [Ulm, Allemagne], University of Florida [Gainesville] (UF), California State University [Los Angeles] (CAL STATE LA), Biodiversité, Gènes & Communautés (BioGeCo), Université de Bordeaux (UB)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and ANR-10-LABX-0025,CEBA,CEnter of the study of Biodiversity in Amazonia(2010)
Subjects: Embolism resistance, Tropical, Drought, Photochemistry, Recovery, Physiology, [SDE]Environmental Sciences, Hydraulics, Plant Science, Rehydration
Abstract: International audience; Water stress can cause declines in plant function that persist after rehydration. Recent work has defined ‘resilience’ traits characterizing leaf resistance to persistent damage from drought, but whether these traits predict resilience in whole-plant function is unknown. It is also unknown whether the coordination between resilience and ‘resistance’ – the ability to maintain function during drought – observed globally occurs within ecosystems. For eight rainforest species, we dehydrated and subsequently rehydrated leaves, and measured water stress thresholds for declines in rehydration capacity and maximum quantum yield of photosystem II (Fv/Fm). We tested correlations with embolism resistance and dry season water potentials (ΨMD), and calculated safety margins for damage (ΨMD – thresholds) and tested correlations with drought resilience in sap flow and growth. Ψ thresholds for persistent declines in Fv/Fm, indicating resilience, were positively correlated with ΨMD and thresholds for leaf vein embolism. Safety margins for persistent declines in Fv/Fm, but not rehydration capacity, were positively correlated with drought resilience in sap flow.Correlations between resistance and resilience suggest that species' differences in performance during drought are perpetuated after drought, potentially accelerating shifts in forest composition. Resilience to photochemical damage emerged as a promising functional trait to characterize whole-plant drought resilience.
Published: 2023

22. Plants stand still but hide: Imperfect and heterogeneous detection is the rule when counting plants

Author: Jan Perret, Aurélien Besnard, Anne Charpentier, Guillaume Papuga, Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Université de Montpellier (UM), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)
Subjects: Detectability, Ecology, Observer effect, Plant survey, Field methods, Plant Science, Conservation, Population monitoring, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Ecology, Evolution, Behavior and Systematics, Demography, N-mixture
Abstract: The estimation of population size and its variation across space and time largely relies on counts of individuals, generally carried out within spatial units such as quadrats or sites. Missing individuals during counting (i.e. imperfect detection) results in biased estimates of population size and trends. Imperfect detection has been shown to be the rule in animal studies, and most studies now correct for this bias by estimating detection probability. Yet this correction remains exceptional in plant studies, suggesting that most plant ecologists implicitly assume that all individuals are always detected.To assess if this assumption is valid, we conducted a field experiment to estimate individual detection probability in plant counts conducted in 1×1 m quadrats. We selected 30 herbaceous plant species along a gradient of conspicuousness at 24 sites along a gradient of habitat closure, and asked groups of observers to count individuals in 10 quadrats using three counting methods requiring progressively increasing times to complete (quick count, unlimited count and cell count). In total, 158 participants took part in the experiment, allowing an analysis of the results of 5,024 counts.Over all field sessions, no observer succeeded in detecting all the individuals in the 10 quadrats. The mean detection rate was 0.44 (ranging from 0.11 to 0.82) for the quick count, 0.59 for the unlimited count (range 0.18–0.87) and 0.74 for the cell count (range 0.46-0.94).Detection probability increased with the conspicuousness of the target species and decreased with the density of individuals and habitat closure. The observer’s experience in botany had little effect on detection probability, whereas detection was strongly affected by the time observers spent counting. Yet although the more time-consuming methods increased detection probability, none achieved perfect detection, nor did they reduce the effect on detection probability of the variables we measured.Synthesis. Our results show that detection is imperfect and highly heterogeneous when counting plants. To avoid biased estimates when assessing the size, temporal or spatial trends of plant populations, plant ecologists should use methods that estimate the detection probability of individuals rather than relying on raw counts.
Published: 2023

23. pWCP is a widely distributed and highly conserved Wolbachia plasmid in Culex pipiens and Culex quinquefasciatus mosquitoes worldwide

Author: Amani Ghousein, Jordan Tutagata, Hans Schrieke, Manuel Etienne, Victor Chaumeau, Sebastien Boyer, Nonito Pages, David Roiz, A. Murat Eren, Guillaume Cambray, Julie Reveillaud, Biothérapies des maladies génétiques et cancers, Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale (INSERM), Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM), Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Centre de Démoustication, Conseil Général de Martinique, Shoklo Malaria Research Unit [Mae Sot, Thailand] (SMRU), Mahidol Oxford Tropical Medicine Research Unit (MORU), University of Oxford-Mahidol University [Bangkok]-Wellcome Trust-University of Oxford-Mahidol University [Bangkok]-Wellcome Trust, Centre for Tropical Medicine and Global Health [Oxford, UK], Nuffield Department of Medicine [Oxford, UK] (Big Data Institute), University of Oxford-University of Oxford, Institut Pasteur du Cambodge, Réseau International des Instituts Pasteur (RIIP), Animal, Santé, Territoires, Risques et Ecosystèmes (UMR ASTRE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB), Carl Von Ossietzky Universität Oldenburg = Carl von Ossietzky University of Oldenburg (OFFIS), Marine Biological Laboratory, Woods Hole, Massachusetts, USA, Centre de Biologie Structurale [Montpellier] (CBS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Diversité, Génomes & Interactions Microorganismes - Insectes [Montpellier] (DGIMI), and Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)
Subjects: [SDV]Life Sciences [q-bio], General Medicine
Abstract: Mosquitoes represent the most important pathogen vectors and are responsible for the spread of a wide variety of poorly treatable diseases. Wolbachia are obligate intracellular bacteria that are widely distributed among arthropods and collectively represents one of the most promising solutions for vector control. In particular, Wolbachia has been shown to limit the transmission of pathogens, and to dramatically affect the reproductive behavior of their host through its phage WO. While much research has focused on deciphering and exploring the biocontrol applications of these WO-related phenotypes, the extent and potential impact of the Wolbachia mobilome remain poorly appreciated. Notably, several Wolbachia plasmids, carrying WO-like genes and Insertion Sequences (IS), thus possibly interrelated to other genetic units of the endosymbiont, have been recently discovered. Here we investigated the diversity and biogeography of the first described plasmid of Wolbachia in Culex pipiens (pWCP) in several islands and continental countries around the world—including Cambodia, Guadeloupe, Martinique, Thailand, and Mexico—together with mosquito strains from colonies that evolved for 2 to 30 years in the laboratory. We used PCR and qPCR to determine the presence and copy number of pWCP in individual mosquitoes, and highly accurate Sanger sequencing to evaluate potential variations. Together with earlier observation, our results show that pWCP is omnipresent and strikingly conserved among Wolbachia populations within mosquitoes from distant geographies and environmental conditions. These data suggest a critical role for the plasmid in Wolbachia ecology and evolution, and the potential of a great tool for further genetic dissection and possible manipulation of this endosymbiont.
Published: 2023

24. Data quality control considerations in multivariate environmental monitoring: experience of the French coastal network SOMLIT

Author: Breton, Elsa, Savoye, Nicolas, Rimmelin-maury, Peggy, Sautour, Benoit, Goberville, Eric, Lheureux, Arnaud, Cariou, Thierry, Ferreira, Sophie, Agogué, Hélène, Alliouane, Samir, Aubert, Fabien, Aubin, Sébastien, Berthebaud, Eric, Blayac, Hadrien, Blondel, Lucie, Boulart, Cedric, Bozec, Yann, Bureau, Sarah, Caillo, Arnaud, Cauvin, Arnaud, Cazes, Jean-baptiste, Chasselin, Leo, Claquin, Pascal, Conan, Pascal, Cordier, Marie-ange, Costes, Laurence, Crec’hriou, Romain, Crispi, Olivier, Crouvoisier, Muriel, David, Valérie, Del Amo, Yolanda, De Lary, Hortense, Delebecq, Gaspard, Devesa, Jeremy, Domeau, Aurélien, Durozier, Maria, Emery, Claire, Feunteun, Eric, Fauchot, Juliette, Gentilhomme, Valérie, Geslin, Sandrine, Giraud, Mélanie, Grangeré, Karine, Grégori, Gerald, Grossteffan, Emilie, Gueux, Aurore, Guillaudeau, Julien, Guillou, Gael, Harrewyn, Manon, Jolly, Orianne, Jude-lemeilleur, Florence, Labatut, Paul, Labourdette, Nathalie, Lachaussée, Nicolas, Lafont, Michel, Lagadec, Veronique, Lambert, Christophe, Lamoureux, Jezebel, Lanceleur, Laurent, Lebreton, Benoit, Lecuyer, Eric, Lemeille, David, Leredde, Yann, Leroux, Cédric, Leynaert, Aude, L’helguen, Stéphane, Liénart, Camilla, Macé, Eric, Maria, Eric, Marie, Barbara, Marie, Dominique, Mas, Sébastien, Mendes, Fabrice, Mornet, Line, Mostajir, Behzad, Mousseau, Laure, Nowaczyk, Antoine, Nunige, Sandra, Parra, René, Paulin, Thomas, Pecqueur, David, Petit, Franck, Pineau, Philippe, Raimbault, Patrick, Rigaut-jalabert, Fabienne, Salmeron, Christophe, Salter, Ian, Sauriau, Pierre-guy, Seuront, Laurent, Sultan, Emmanuelle, Valdès, Rémi, Vantrepotte, Vincent, Vidussi, Francesca, Voron, Florian, Vuillemin, Renaud, Zudaire, Laurent., Garcia, Nicole, Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG), Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Nord]), Université du Littoral Côte d'Opale (ULCO), Environnements et Paléoenvironnements OCéaniques (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Adaptation et diversité en milieu marin (ADMM), Institut national des sciences de l'Univers (INSU - CNRS)-Station biologique de Roscoff (SBR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), LIttoral ENvironnement et Sociétés (LIENSs), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'océanographie de Villefranche (LOV), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), ESEO-GSII (GSII), ESEO-Tech, Université Bretagne Loire (UBL)-École supérieure d'électronique de l'ouest [Angers] (ESEO)-Université Bretagne Loire (UBL)-École supérieure d'électronique de l'ouest [Angers] (ESEO), Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Université de Montpellier (UM), Centre d'Ecologie marine expérimentale (MEDIMEER), Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Station biologique de Roscoff (SBR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences de la Terre (ISTerre), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement [IRD] : UR219-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA), De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Centre pour l'Aquaculture, la Pêche et l'Environnement (CAPENA), Centre de recherches en environnement côtier (CREC), Normandie Université (NU)-Normandie Université (NU), Laboratoire d'Océanographie Microbienne (LOMIC), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Banyuls (OOB), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de la Mer de Villefranche (IMEV), Groupement d'intérêt public pour la réhabilitation de l'étang de Berre (GIPREB), GIPREB, Centre De Recherche et d'Enseignement sur les Systèmes Côtiers (CRESCO), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Normandie Université (NU), Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), UMS 3113, Institut de Recherche pour le Développement (IRD)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Observatoire océanologique de Banyuls (OOB), Adaptation et diversité en milieu marin (AD2M), Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Pluridisciplinarité au service de l’observation et de la recherche en environnement et astronomie (UMS POREA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Department of Marine Resources and Energy, Tokyo University of Marine Science and Technology (TUMSAT), Rhodes University, Grahamstown, Observatoire de REcherche Méditerranéen de l'Environnement (OSU OREME), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), OSU Stations marines (STAMAR), and CNRS-INSU, SNO SOMLIT, French National Fleet (Flotte Océanographique Française, FOF)
Subjects: data quality control, inter-laboratory comparison exercises, Global and Planetary Change, [STAT.AP]Statistics [stat]/Applications [stat.AP], [SDE.IE]Environmental Sciences/Environmental Engineering, measurement uncertainty, environmental monitoring network, Ocean Engineering, analyst performance, Aquatic Science, Oceanography, multivariate dataset, Water Science and Technology
Abstract: IntroductionWhile crucial to ensuring the production of accurate and high-quality data—and to avoid erroneous conclusions—data quality control (QC) in environmental monitoring datasets is still poorly documented.MethodsWith a focus on annual inter-laboratory comparison (ILC) exercises performed in the context of the French coastal monitoring SOMLIT network, we share here a pragmatic approach to QC, which allows the calculation of systematic and random errors, measurement uncertainty, and individual performance. After an overview of the different QC actions applied to fulfill requirements for quality and competence, we report equipment, accommodation, design of the ILC exercises, and statistical methodology specially adapted to small environmental networks (Results, Discussion, ConclusionThe examination of the temporal variations (2001–2021) in the repeatability, reproducibility, and trueness of the SOMLIT network over time confirms the essential role of ILC exercises as a tool for the continuous improvement of data quality in environmental monitoring datasets.
Published: 2023

25. Volatile organic compounds influence prey composition in Sarracenia carnivorous plants

Author: Corentin Dupont, Bruno Buatois, Jean-Marie Bessiere, Claire Villemant, Tom Hattermann, Doris Gomez, Laurence Gaume, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM), Université de Montpellier (UM), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), ANR-10-LABX-0004,CeMEB,Mediterranean Center for Environment and Biodiversity(2010), and ANR-16-IDEX-0006,MUSE,MUSE(2016)
Subjects: Multidisciplinary, Moths and butterflies, Ants, Pollinators, Flowering plants, Carnivorous plants, Predation, Bees, Insect plant interaction, Odor signal, Insects, Sarracenia, Benzenoids, Leaf scent, Monoterpenes, Fatty acid derivatives, Volatile organic compounds, [SDE.BE]Environmental Sciences/Biodiversity and Ecology
Abstract: Sarracenia pitcher plants display interspecific differences in prey, so far only explained by pitcher morphology. We hypothesized that pitcher odours play a role in prey composition. We first compared odour and prey compositions among Sarracenia taxa grown together, forming a kinship gradient from S. purpurea known to capture primarily ants towards S. leucophylla known to capture many flying insects: S. purpurea, S. X mitchelliana, and S. X Juthatip soper & S. X leucophylla horticultural hybrids. We then measured several pitcher traits to disentangle the contributions of morphology and odour to prey variation. The pitcher odours were as diverse as those of generalist-pollinated flowers but with notable differences among taxa, reflecting their relatedness. VOC similarity analyses revealed taxon specificities, that mirrored those revealed by prey similarity analyses. S. X leucophylla stood out by being more specialised in flying insects like bees and moths and by releasing more monoterpenes known to attract flower visitors. S. X Juthatip soper trapped as many bees but fewer moths, sesquiterpenes contributing less to its scent. Ants and Diptera were the main prey of the other two with fatty-acid-derivative-dominated scents. Quantities of the different prey groups can be inferred 98% from quantities of the odour classes and pitcher dimensions. Two syndromes were revealed: ants associated with fatty-acid-derivatives and short pitchers; flying insects associated with monoterpenes, benzenoids and tall pitchers. In S. X leucophylla, emission rate of fatty-acid-derivatives and pitcher length explained most variation in ant captures; monoterpenes and pitcher length explained most variation in bee and moth captures; monoterpenes alone explained most variation in Diptera and wasp captures. Our results suggest that odours are key factors of the diet composition of pitcher plants. They support the hypothesis of perceptual exploitation of insect biases in carnivorous plants and provide new insights into the olfactory preferences of insect groups.
Published: 2023

26. <scp> restoptr </scp> : an R package for ecological restoration planning

Author: Dimitri Justeau‐Allaire, Jeffrey O. Hanson, Guillaume Lannuzel, Philippe Vismara, Xavier Lorca, Philippe Birnbaum, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Carleton University, New Caledonia Plant Red List Authority Endemia, Mathématiques, Informatique et STatistique pour l'Environnement et l'Agronomie (MISTEA), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Agents, Apprentissage, Contraintes (COCONUT), Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Centre Génie Industriel (CGI), IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département Systèmes Biologiques (Cirad-BIOS), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)
Subjects: Wildlife corridors, Connectivity, [SPI]Engineering Sciences [physics], Ecology, Fragmentation, Systematic conservation planning, R package, Constraint programming, Landscape indices, Ecological restoration planning, Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation
Abstract: International audience; Ecological restoration is essential to curb the decline of biodiversity and ecosystems worldwide. Since the resources available for restoration are limited, restoration efforts must be cost-effective to achieve conservation outcomes. Although decision support tools are available to aid in the design of protected areas, little progress has been made to provide such tools for restoration efforts. Here, we introduce the restoptr R package, a decision support tool designed to identify priority areas for ecological restoration. It uses constraint programming – an artificial intelligence technique – to identify optimal plans given ecological and socio-economic constraints. Critically, it can identify strategic locations to enhance connectivity and reduce fragmentation across a broader landscape using complex landscape metrics. We illustrate its usage with a case study in New Caledonia. By applying this tool, we identified priority areas for restoration that could reverse forest fragmentation induced by mining activities in a specific area. We also found that relatively small investments could deliver large returns to restore connectivity. The restoptr R package is a free and open-source decision support tool available on the Comprehensive R Archive Network (https://cran.r-project.org/package=restoptr)
Published: 2023

27. High-intensity training with short and long intervals regulate cortical neurotrophic factors, apoptosis markers and chloride homeostasis in rats with stroke

Author: Nicolas Hugues, Caroline Pin-Barre, Thomas Brioche, Christophe Pellegrino, Eric Berton, Claudio Rivera, Jérôme Laurin, Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Institut de Neurobiologie de la Méditerranée [Aix-Marseille Université] (INMED - INSERM U1249), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Montpellier (UM), Dynamique Musculaire et Métabolisme (DMEM), and Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)
Subjects: Behavioral Neuroscience, Experimental and Cognitive Psychology, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]
Abstract: International audience; The optimal endurance exercise parameters remain to be defined to potentiate long-term functional recovery after stroke. We aim to assess the effects of individualized high-intensity interval training (HIIT) with either long or short intervals on neurotrophic factors and their receptors, apoptosis markers and the two-main cation-chloride cotransporters in the ipsi- and contralesional cerebral cortices in rats with cerebral ischemia. Endurance performance and sensorimotor functions were also assessed METHODS: : Rats with a 2-hour transient middle cerebral artery occlusion (tMCAO) performed work-matched HIIT4 (intervals: 4min) or HIIT1 (intervals: 1min) on treadmill for 2 weeks. Incremental exercises and sensorimotor tests were performed at day 1 (D1), D8, and D15 after tMCAO. Molecular analyses were achieved in both the paretic and non-paretic triceps brachii muscles and the ipsi- and contralesional cortices at D17 RESULTS: : Gains in endurance performance are in a time-dependent manner from the first week of training. This enhancement is supported by the upregulation of metabolic markers in both triceps brachii muscles. Both regimens alter the expression of neurotrophic markers and chloride homeostasis in a specific manner in the ipsi- and contralesional cortices. HIIT acts on apoptosis markers by promoting anti-apoptotic proteins in the ipsilesional cortex CONCLUSION: : HIIT regimens seem to be of clinical relevance in the critical period of stroke rehabilitation by strongly improving aerobic performance. Also, the observed cortical changes suggest an influence of HIIT on neuroplasticity in both ipsi- and contralesional hemispheres. Such neurotrophic markers might be considered as biomarkers of functional recovery in individuals with stroke.
Published: 2023

28. A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula)

Author: Quentin Jossart, David Bauman, Camille VE Moreau, Thomas Saucède, Henrik Christiansen, Madeleine J. Brasier, Peter Convey, Rachel Downey, Blanca Figuerola, Patrick Martin, Jon Norenburg, Sebastian Rosenfeld, Marie Verheye, Bruno Danis, Laboratoire de Biologie Marine (LBM), Université libre de Bruxelles (ULB), Marine Biology, Vrije Universiteit Brussel (VUB), Biogéosciences [UMR 6282] (BGS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Environmental Change Institute, University of Oxford, Laboratory of Biodiversity and Evolutionary Genomics, Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), Greenland Institute of Natural Resources (GINR), Institute for Marine and Antarctic Studies [Hobart] (IMAS), University of Tasmania [Hobart, Australia] (UTAS), British Antarctic Survey (BAS), Natural Environment Research Council (NERC), Department of Zoology [University of Johannesburg], University of Johannesburg [South Africa] (UJ), Millenium Institute Biodiversity of Antarctic and Subantarctic Ecosystems, Fenner School of Environment & Society, Australian National University (ANU), Institute of Marine Sciences / Institut de Ciències del Mar [Barcelona] (ICM), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Royal Belgian Institute of Natural Sciences (RBINS), Smithsonian Institution National Museum of Natural History (NMNH), Laboratorio de Ecosistemas Marinos Antárticos y Subantárticos, Universidad de Magallanes (UMAG), Centro de Investigación Gaia-Antártica, Laboratory of Trophic and Isotopes Ecology, Université de Liège, Tolerance in the Southern Ocean’ project (RECTO, BR/154/A1/RECTO) funded by the ‘Belgian Science Policy Office’ (BELSPO). This is contribution no. 28 to the RECTOproject. The B121 expedition was funded by the Federation Wallonia-Brussels, the Fund for Scientific Research (FNRS), the Research Foundation – Flanders (FWO), the Leopold 3Fund for the exploration and conservation of Nature and the Royal Belgian Society for Zoology. David Bauman was funded by the Belgian American Educational Foundation (BAEF) and the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreementNo. 895799. Henrik Christiansen was funded by the BELSPOproject COPE (B2/191/P1/COPE). Blanca Figuerola receivedfunding from the Beatriu de Pinós program (2019-BP-00183),funded by the Secretary of Universities and Research (Governmentof Catalonia) and the European Union’s Horizon 2020program under the Marie Skłodowska-Curie grant agreementNo. 801370. Peter Convey was supported by NERC core fundingto the BAS ‘Biodiversity, Evolution and Adaptation’ Team., Belgian Science Policy Office, Federation Wallonia-Brussels, National Fund for Scientific Research (Belgium), Research Foundation - Flanders, Leopold III-Fonds, Royal Belgian Society for Zoology, Belgian American Educational Foundation, European Commission, Generalitat de Catalunya, Natural Environment Research Council (UK), and Agencia Estatal de Investigación (España)
Subjects: MESH: Bivalvia, General Medicine, Management, Monitoring, Policy and Law, Pollution, MESH: Biodiversity, Community structure, Benthic ecology, Seashore, MESH: Antarctic Regions, DNA barcoding, MESH: Animals, MESH: Ecosystem, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Conserve and sustainably use the oceans, seas and marine resources for sustainable development, Southern Ocean, MESH: Environmental Monitoring, General Environmental Science
Abstract: 19 pages, 3 figures, 2 tables, supplementary information https://doi.org/10.1007/s10661-023-11066-3.-- Data availability: All genetic data, as well as photographs of voucher specimens, can be publicly accessed and downloaded on boldsystems.org, under the “INTGS” project (Intertidal fauna from the Gerlache Strait). Occurrence data can be found on the Global Biodiversity Information Facility (GBIF, B121 dataset) using the following link: https://doi.org/10.15468/56bv6z. Additional data, tables and figures are also provided as Supplementary materials. The specimens used in this study are hosted at the Université Libre de Bruxelles (ULB, Brussels, Belgium) – Laboratoire de Biologie Marine, The underexplored intertidal ecosystems of Antarctica are facing rapid changes in important environmental factors. Associated with temperature increase, reduction in coastal ice will soon expose new ice-free areas that will be colonized by local or distant biota. To enable detection of future changes in faunal composition, a biodiversity baseline is urgently required. Here, we evaluated intertidal faunal diversity at 13 locations around the Gerlache Strait (western Antarctic Peninsula), using a combination of a quadrat approach, morphological identification and genetic characterization. Our data highlight a community structure comprising four generally distributed and highly abundant species (the flatworm Obrimoposthia wandeli, the bivalve Kidderia subquadrata, and the gastropods Laevilitorina umbilicata and Laevilitorina caliginosa) as well as 79 rarer and less widely encountered species. The most abundant species thrive in the intertidal zone due to their ability to either survive overwinter in situ or to rapidly colonize this zone when conditions allow. In addition, we confirmed the presence of multiple trophic levels at nearly all locations, suggesting that complex inter-specific interactions occur within these communities. Diversity indices contrasted between sampling locations (from 3 to 32 species) and multivariate approaches identified three main groups. This confirms the importance of environmental heterogeneity in shaping diversity patterns within the investigated area. Finally, we provide the first genetic and photographic baseline of the Antarctic intertidal fauna (106 sequences, 137 macrophotographs), as well as preliminary insights on the biogeography of several species. Taken together, these results provide a timely catalyst to assess the diversity and to inform studies of the potential resilience of these intertidal communities, This work was supported by the ‘Refugia and Ecosystem Tolerance in the Southern Ocean’ project (RECTO; BR/154/A1/RECTO) funded by the ‘Belgian Science Policy Office’ (BELSPO). [...] The B121 expedition was funded by the Federation Wallonia-Brussels, the Fund for Scientific Research (FNRS), the Research Foundation – Flanders (FWO), the Leopold 3 Fund for the exploration and conservation of Nature and the Royal Belgian Society for Zoology. David Bauman was funded by the Belgian American Educational Foundation (BAEF) and the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 895799. Henrik Christiansen was funded by the BELSPO project COPE (B2/191/P1/COPE). Blanca Figuerola received funding from the Beatriu de Pinós program (2019-BP-00183), funded by the Secretary of Universities and Research (Government of Catalonia) and the European Union's Horizon 2020 program under the Marie Skłodowska-Curie grant agreement No. 801370. Peter Convey was supported by NERC core funding to the BAS ‘Biodiversity, Evolution and Adaptation’ Team, With the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S)
Published: 2023

29. Analysing the architecture of Corylus avellana and parametrizing L-HAZELNUT FSPM

Author: Grisafi, Francesca, Tombesi, Sergio, Farinelli, Daniela, Boudon, Frédéric, Durand, Jean-Baptiste, Costes, Evelyne, Università cattolica del Sacro Cuore [Piacenza e Cremona] (Unicatt), Università degli Studi di Perugia = University of Perugia (UNIPG), Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Modèles statistiques bayésiens et des valeurs extrêmes pour données structurées et de grande dimension (STATIFY), Inria Grenoble - Rhône-Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire Jean Kuntzmann (LJK), Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Dr. Susann Müller, Tsu-Wei Chen, Andreas Fricke, Katrin Kahlen, and Susann Müller and Hartmut Stützel
Subjects: modelling, [MATH.MATH-ST]Mathematics [math]/Statistics [math.ST], hazelnut, Lpy, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology
Abstract: International audience; Introduction - Tree architecture is a fundamental part of a functional structural plant model. This is particularly evident in perennial tree crops where the structure of the plant influences the position of source and sink organs, as well as light interception inside the canopy, and serves as storage pool for exceeding carbohydrates. Therefore, a precise description of tree 3D structure is essential to realistically allocate carbohydrates in a FSPM (Costes et al., 2006). Hazelnut tree architecture has different characteristics compared to other fruit tree crops that have been modelled (i.e., peach, mango, apple, and kiwi). It is a monoecious species. Female flowers are grouped into inflorescences located into mixed buds, while male flowers are arranged into inflorescences in the apical position of sylleptic shoots. Each node could bear more than one bud and, the following year, the new shoots are much shorter than the shoots from which they were born. The present study aimed to analyse hazelnut one-year-old shoots 'architecture in order to build the structural part of L-HAZELNUT: a functional structural plant model of hazelnut (Corylus avellana). Material and Methods - Own-rooted tree clones of C.avellana, cultivar “Tonda di Giffoni”, were chosen, during winter, in 2020 and 2021 in Deruta (Italy). Plants were normally irrigated and fertilized. No pruning occurred during the two years. 104 one-year-old proleptic shoots were sampled according to four length categories: short (Sh) when shorter than 5 cm, medium (Me) when they were between 5 and 20 cm, long (Lo) when they were between 20 and 40 cm, and very long (VLo) when longer than 40 cm. For each shoot, diameter, length, and number of nodes were recorded. From the base of the shoot to its tip, the fate of each node was noted. Four fates are distinguished in C.avellana: blind nodes, vegetative buds, sylleptic shoots and mixed buds. In the year subsequent to sampling, the same measurements were repeated on the lateral shoots that were born from the buds. Statistical analyses were done in 2022, using packages from RStudio. First, exploratory analyses were performed to investigate the distribution of the bud types or sylleptic shoots depending on the rank node along the one-year-old proleptic shoots and thus, to address if there were some homogeneous zone (i.e., zones characterized by a stable distribution of the possible bud fates (Guédon et al., 2001)). This led us to draw a flux diagram (Figure 1). Each part of the diagram corresponds to specific logical connections, between FSPM components, which were addressed using specific probabilistic models, inferred from the collected data set. Results and Discussion - During this study new knowledge regarding the architecture of C.avellana was acquired. Even though male flowers were stated to be located on proleptic shoots 'nodes (Botta & Valentini, 2018), we instead highlighted the presence of male flowers in the apical position of sylleptic shoots. It was also observed that hazelnut has a sympodial growth. Each statistical model, associated with the FSPM components, was used to define functions to answer each of the questions addressed in the flow diagram. All the functions were coded in L-py (Boudon et al., 2012) to build a L-system program able to generate the architecture of hazelnut (Figure 1). Conclusion - This led to a first coarse FSPM named L-HAZELNUT, in reference to some previous FSPM for fruit tree crops (Lopez et al., 2010). It simulates the growth of a hazelnut tree over two successive years. The conception of an FSPM is a long and meticulous process that requires having in mind a clear scheme that describes the growing and branching processes. Such a scheme can be acquired by appropriate observations and analyses of how the plant grows and develops. However, as many aspects of the plant have to be considered, the accuracy of the presented 3D structure has still to be evaluated and further studies will be necessary to validate them. Moreover, L-HAZELNUT model should be complemented in the next future with a functional part describing carbon acquisition and partitioning within the tree.
Published: 2023

30. Disrupted montane forest recovery hinders biodiversity conservation in the tropical Andes

Author: Tina Christmann, Ximena Palomeque, Dolors Armenteras, Sarah Jane Wilson, Yadvinder Malhi, Imma Oliveras Menor, University of Oxford, Universidad de Cuenca (UCUENCA), Universidad Nacional de Colombia [Bogotà] (UNAL), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)
Subjects: Global and Planetary Change, Ecology, Forest restoration, Cloud forest, NDWI, Tropical montane forest, Landsat time series, Natural regeneration, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Forest transition, Google Earth Engine, Ecology, Evolution, Behavior and Systematics
Abstract: International audience; Aim: Andean montane forests are biodiversity hotspots and large carbon stores and they provide numerous ecosystem services. Following land abandonment after centuries of forest clearing for agriculture in the Andes, there is an opportunity for forest recovery. Field-based studies show that forests do not always recover. However, large-scale and long-term knowledge of recovery dynamics of Andean forests remains scarce. This paper analyses tropical montane forest recovery trajectories over a 15-year time frame at the landscape and tropical Andean scale to inform restoration planning. Methods: We first detect “potential recovery” as areas that have experienced a forest transition between 2000 and 2005. Then, we use Landsat time series analysis of the normalized difference water index (NDWI) to classify four “realized recovery” trajectories (“ongoing”, “arrested”, “disrupted” and “no recovery”) based on a sequential pattern of 5-yearly Z-score anomalies for 2005–2020. We compare these results against an analysis of change in tree cover to validate against other datasets. Results: Across the tropical Andes, we detected a potential recovery area of 274 km2 over the period. Despite increases in tree cover, most areas of the Andes remained in early successional states (10–25% tree cover), and NDWI levelled out after 5–10 years. Of all potential forest recovery areas, 22% showed “ongoing recovery”, 61% showed either “disrupted” or “arrested recovery”, and 17% showed “no recovery”. Our method captured forest recovery dynamics in a Peruvian arrested succession context and in landscape-scale tree-planting efforts in Ecuador. Main conclusions: Forest recovery across the Andes is mostly disrupted, arrested or unsuccessful, with consequences for biodiversity recovery and provision of ecosystem services. Low-recovery areas identified in this study might be good candidates for active restoration interventions in this UN Decade on Restoration. Future studies could determine restoration strategies and priorities and suggest management strategies at a local planning scale across key regions in the biodiversity hotspot.
Published: 2023

31. Rethinking the nature of intraspecific variability and its consequences on species coexistence

Author: Camille Girard-Tercieux, Isabelle Maréchaux, Adam T. Clark, James S. Clark, Benoît Courbaud, Claire Fortunel, Joannès Guillemot, Georges Künstler, Guerric le Maire, Raphaël Pélissier, Nadja Rüger, Ghislain Vieilledent, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Karl-Franzens-Universität Graz, Duke University [Durham], Laboratoire des EcoSystèmes et des Sociétés en Montagne (UR LESSEM), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Département Performances des systèmes de production et de transformation tropicaux (Cirad-PERSYST), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Institut Français de Pondichéry (IFP), Ministère de l'Europe et des Affaires étrangères (MEAE)-Centre National de la Recherche Scientifique (CNRS), Universität Leipzig, German Centre for Integrative Biodiversity Research (iDiv), Smithsonian Tropical Research Institute, Département Systèmes Biologiques (Cirad-BIOS), Fondation pour la Recherche sur la Biodiversité, and ANR-10-LABX-0025,CEBA,CEnter of the study of Biodiversity in Amazonia(2010)
Subjects: Environmental variation, Individual variation, Competition, Ecology, Intraspecific variability, Species coexistence, Spatial heterogeneity, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, High-dimensional niche, Spatial autocorrelation, Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation
Abstract: ContextIntraspecific variability (IV) has been proposed to explain species coexistence in diverse communities. Assuming, sometimes implicitly, that conspecific individuals can perform differently in the same environment and that IV blurs species differences, previous studies have found contrasting results regarding the effect of IV on species coexistence.ObjectiveWe aim at showing that the large IV observed in data does not mean that conspecific individuals are necessarily different in their response to the environment and that the role of high-dimensional environmental variation in determining IV has been largely underestimated in forest plant communities.Methods and ResultsWe first used a simulation experiment where an individual attribute is derived from a high-dimensional model, representing “perfect knowledge” of individual response to the environment, to illustrate how a large observed IV can result from “imperfect knowledge” of the environment. Second, using growth data from clonal Eucalyptus plantations in Brazil, we estimated a major contribution of the environment in determining individual growth. Third, using tree growth data from long-term tropical forest inventories in French Guiana, Panama and India, we showed that tree growth in tropical forests is structured spatially and that despite a large observed IV at the population level, conspecific individuals perform more similarly locally than compared with heterospecific individuals.SynthesisAs the number of environmental dimensions that are typically quantified is generally much lower than the actual number of environmental dimensions influencing individual attributes, a great part of observed IV might be misinterpreted as random variation across individuals when in fact it is environmentally-driven. This mis-representation has important consequences for inference about community dynamics. We emphasize that observed IV does not necessarily impact species coexistence per se but can reveal species response to high-dimensional environment, which is consistent with niche theory and the observation of the many differences between species in nature.
Published: 2023

32. Massive Somatic and Germline Chromosomal Integrations of Polydnaviruses in Lepidopterans

Author: Camille Heisserer, Héloïse Muller, Véronique Jouan, Karine Musset, Georges Periquet, Jean-Michel Drezen, Anne-Nathalie Volkoff, Clément Gilbert, Evolution, génomes, comportement et écologie (EGCE), Institut de Recherche pour le Développement (IRD)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de recherche sur la biologie de l'insecte UMR7261 (IRBI), Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), Diversité, Génomes & Interactions Microorganismes - Insectes [Montpellier] (DGIMI), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), and ANR-18-CE02-0021,TranspHorizon,Transferts horizontaux d'éléments transposables: les clés d'une invasion réussie(2018)
Subjects: parasitoid wasps, [SDV]Life Sciences [q-bio], evolutionary genomics, Genetics, polydnavirus, insects, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, horizontal transfer, host-parasite relationships, Molecular Biology, Ecology, Evolution, Behavior and Systematics
Abstract: Increasing numbers of horizontal transfer (HT) of genes and transposable elements are reported in insects. Yet the mechanisms underlying these transfers remain unknown. Here we first quantify and characterize the patterns of chromosomal integration of the polydnavirus (PDV) encoded by the Campopleginae Hyposoter didymator parasitoid wasp (HdIV) in somatic cells of parasitized fall armyworm (Spodoptera frugiperda). PDVs are domesticated viruses injected by wasps together with their eggs into their hosts in order to facilitate the development of wasp larvae. We found that six HdIV DNA circles integrate into the genome of host somatic cells. Each host haploid genome suffers between 23 and 40 integration events (IEs) on average 72 h post-parasitism. Almost all IEs are mediated by DNA double-strand breaks occurring in the host integration motif (HIM) of HdIV circles. We show that despite their independent evolutionary origins, PDV from both Campopleginae and Braconidae wasps use remarkably similar mechanisms for chromosomal integration. Next, our similarity search performed on 775 genomes reveals that PDVs of both Campopleginae and Braconidae wasps have recurrently colonized the germline of dozens of lepidopteran species through the same mechanisms they use to integrate into somatic host chromosomes during parasitism. We found evidence of HIM-mediated HT of PDV DNA circles in no less than 124 species belonging to 15 lepidopteran families. Thus, this mechanism underlies a major route of HT of genetic material from wasps to lepidopterans with likely important consequences on lepidopterans.
Published: 2023

33. Microspines in tropical climbing plants: a small-scale fix for life in an obstacle course

Author: Romain Lehnebach, Cloé Paul-Victor, Elisa Courric, Nick P Rowe, Ecologie des forêts de Guyane (UMR ECOFOG), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Université de Guyane (UG)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Département Environnements et Sociétés (Cirad-ES), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), ANR-10-LABX-0025,CEBA,CEnter of the study of Biodiversity in Amazonia(2010), and European Project: 82407,GROWBOT
Subjects: Microspines, Searcher stems, Physiology, Attachment, GrowBots, Robotics, Plant Science, Plants, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, Static force, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, Climbing plants, Sliding force, [SDE.BE]Environmental Sciences/Biodiversity and Ecology
Abstract: Many climbing plants have microspines on their stems, which facilitate attachment and prevent slipping and falling from host plant supports. Extending via growth through complex environments and anchoring stems to substrates with minimal contact forces are key benefits for climbing plants. Microspines are also highly desirable features for new technologies and applications in soft robotics. Using a novel sled-like device, we investigated static and sliding attachment forces generated by stems in 10 species of tropical climber from French Guiana differing in size and climbing habit. Eight species showed higher static and sliding forces when their stems were pulled in the basal direction against a standard surface than in the apical direction. This anisotropic behaviour suggests that tropical climbers have evolved different ratchet-like mechanisms that allow easy sliding forwards but are resistant to slipping downwards. The presence of a downwards ‘stick-and-slip’ phenomenon, where static attachment is not significantly stronger than maximal sliding attachment, was present in most species apart from three showing relatively weak attachment by microspines. This indicates that diverse microspine attachment strategies exist in climbing plants. This diversity of functional properties offers a range of potential design specifications for climbing strategies on different substrates for artificial climbing artefacts.
Published: 2022

34. Fragmented landscape generator (flsgen): A neutral landscape generator with control of landscape structure and fragmentation indices

Author: Gregoire Blanchard, Xavier Lorca, Dimitri Justeau-Allaire, Philippe Birnbaum, Ghislain Vieilledent, Thomas, Paul Ibanez, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Institut Agronomique Néo-Calédonien (IAC), IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT), Centre Génie Industriel (CGI), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département Systèmes Biologiques (Cirad-BIOS), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)
Subjects: Neutral landscape, Landscape ecology, Application des ordinateurs, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, Artificial landscape generation, Programmation informatique, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, Constraint programming, Landscape indices, Ecology, Evolution, Behavior and Systematics, Paysage, fragmentation de l'habitat, U10 - Informatique, mathématiques et statistiques, Contrainte, Ecological Modeling, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, Habitat fragmentation, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Modèle stochastique, Modèle mathématique
Abstract: International audience; 1. Neutral landscape models have many applications in ecology, such as supporting spatially-explicit simulations, developing, and evaluating landscape indices. However, current approaches provide few options to produce large landscapes with controlled composition and fragmentation indices. 2. We introduce flsgen (Fragmented Landscape Generator), a new neutral landscape generator that address this limitation by providing a high level of control over 14 landscape indices. The main novelty of flsgen is the decomposition of landscape generation into two steps: the solving of a constraint satisfaction problem and the generation of a landscape raster with a stochastic algorithm. The latter relies on a continuous environmental gradient that influences the landscape’s spatial configuration. 3. flsgen can generate fine-grained artificial landscapes in small amounts of time, which makes it suited to produce large landscape series systematically. We demonstrate the features of flsgen through three illustrative use cases. 4. flsgen is a practical and efficient tool that expand the current possibilities of neutral landscape models and widen their potential applications. To facilitate its uptake, flsgen is available as free and open-source software through a Java API, a command-line interface, or an R package.
Published: 2022

35. Hypothalamic–pituitary–adrenal axis activation and glucocorticoid‐responsive gene expression in skeletal muscle and liver of Apc mice

Author: Agnès Martin, Josiane Castells, Valentine Allibert, Andréa Emerit, Cindy Zolotoff, Victoire Cardot‐Ruffino, Yann S. Gallot, Barbara Vernus, Véronique Chauvet, Laurent Bartholin, Laurent Schaeffer, Anne‐Cécile Durieux, Christophe Hourdé, François B. Favier, Laetitia Mazelin, Damien Freyssenet, Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM ), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Institut NeuroMyoGène (INMG), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche en Cancérologie de Lyon (UNICANCER/CRCL), Centre Léon Bérard [Lyon]-Université Claude Bernard Lyon 1 (UCBL), Laboratoire de Biologie de l'Exercice pour la Performance et la Santé (LBEPS), Université d'Évry-Val-d'Essonne (UEVE)-Université Paris-Saclay-Institut de Recherche Biomédicale des Armées [Brétigny-sur-Orge] (IRBA), Dynamique Musculaire et Métabolisme (DMEM), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Ligue Nationale contre le Cancer (Comité Saône et Loire), Ministère de l'Enseignement supérieur, de la Recherche et de l'Innovation MESRI, Fondation ARC pour la Recherche sur le Cancer, Université d'Évry-Val-d'Essonne (UEVE)-Université Paris-Saclay-Institut de Recherche Biomédicale des Armées (IRBA), and Raynaud, Christelle
Subjects: Male, Hypothalamo-Hypophyseal System, Cachexia, [SDV]Life Sciences [q-bio], Gene Expression, Pituitary-Adrenal System, Skeletal muscle, Cancer cachexia, [SDV] Life Sciences [q-bio], Mice, Inbred C57BL, Carcinoma, Lewis Lung, Mice, Glucocorticoid, Metabolism, Liver, Physiology (medical), Hypothalamic-pituitary-adrenal axis, Quality of Life, Animals, Humans, Orthopedics and Sports Medicine, Muscle, Skeletal, Glucocorticoids, Aged
Abstract: Cancer patients at advanced stages experience a severe depletion of skeletal muscle compartment together with a decrease in muscle function, known as cancer cachexia. Cachexia contributes to reducing quality of life, treatment efficiency, and lifespan of cancer patients. However, the systemic nature of the syndrome is poorly documented. Here, we hypothesize that glucocorticoids would be important systemic mediators of cancer cachexia.To explore the role of glucocorticoids during cancer cachexia, biomolecular analyses were performed on several tissues (adrenal glands, blood, hypothalamus, liver, and skeletal muscle) collected from ApcTwenty-three-week-old Apc mice recapitulated important features of cancer cachexia including body weight loss (-16%, P 0.0001), muscle atrophy (gastrocnemius muscle: -53%, P 0.0001), and weakness (-50% in tibialis anterior muscle force, P 0.0001), increased expression of atrogens (7-fold increase in MuRF1 transcript level, P 0.0001) and down-regulation of Akt-mTOR pathway (3.3-fold increase in 4EBP1 protein content, P 0.0001), together with a marked transcriptional rewiring of hepatic metabolism toward an increased expression of gluconeogenic genes (Pcx: +90%, Pck1: +85%), and decreased expression of glycolytic (Slc2a2: -40%, Gk: -30%, Pklr: -60%), ketogenic (Hmgcs2: -55%, Bdh1: -80%), lipolytic/fatty oxidation (Lipe: -50%, Mgll: -60%, Cpt2: -60%, Hadh: -30%), and lipogenic (Acly: -30%, Acacb: -70%, Fasn: -45%) genes. The hypothalamic pituitary-adrenal axis was activated, as evidenced by the increase in the transcript levels of genes encoding corticotropin-releasing hormone in the hypothalamus (2-fold increase, P 0.01), adrenocorticotropic hormone receptor (3.4-fold increase, P 0.001), and steroid biosynthesis enzymes (Cyp21a1, P 0.0001, and Cyp11b1, P 0.01) in the adrenal glands, as well as by the increase in corticosterone level in the serum (+73%, P 0.05), skeletal muscle (+17%, P 0.001), and liver (+24%, P 0.05) of cachectic 23-week-old Apc mice. A comparative transcriptional analysis with dexamethasone-treated C57BL/6J mice indicated that the activation of the hypothalamic-pituitary-adrenal axis in 23-week-old ApcThese findings highlight the role of the hypothalamic-pituitary-adrenal-glucocorticoid pathway in the transcriptional regulation of skeletal muscle catabolism and hepatic metabolism during cancer cachexia. They also provide the paradigm for the design of new therapeutic strategies.
Published: 2022

36. Diets Rich in Olive Oil, Palm Oil, or Lard Alter Mitochondrial Biogenesis and Mitochondrial Membrane Composition in Rat Liver

Author: Youzan Ferdiand Djohan, Massara Camara-Cissé, Gilles Fouret, Béatrice Bonafos, Bernard Jover, Jean-Paul Cristol, Charles Coudray, Christine Feillet-Coudray, Eric Badia, Université Félix Houphouët-Boigny (UFHB), Dynamique Musculaire et Métabolisme (DMEM), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Physiologie & médecine expérimentale du Cœur et des Muscles [U 1046] (PhyMedExp), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Hôpital Lapeyronie [Montpellier] (CHU), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), SANIA (No. 2015/UM/150666), and MORNET, Dominique
Subjects: SFA, Mitochondrial Respiratory Chain Complexes, Mitochondrial Biogenesis, Article Subject, Lard, food and beverages, [SDV.BC.BC]Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC], Palm Oil, Biochemistry, Diet, [SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, Polyunsaturated Fatty Acids, [SDV.BC.BC] Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC], Mitochondrial Membrane, Olive Oil, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract: International audience; Palm oil (crude or refined) and lard are rich in SFA, while olive oil is rich in polyunsaturated fatty acids. SFA are considered harmful to health, while polyunsaturated fatty acids are beneficial to health. The aim of this study was to determine the effect of diets rich in crude PO, refined PO, OO, or lard on the mitochondrial membrane, the activity of mitochondrial respiratory chain complexes, and mitochondrial biogenesis. This was an experimental study in male Wistar rats fed a diet containing 30% of each oil. Rats had free access to food and water. After being fed for 12 weeks, animals were sacrificed and liver mitochondria were collected. This collection was used to determine membrane potential and ROS production, membrane phospholipid and fatty acid composition, citrate synthase activity and respiratory chain complex, cardiolipin synthase protein expression, and expression of selected genes involved in mitochondrial biogenesis. We found that diets rich in olive oil, palm oil, or lard altered mitochondrial biogenesis by significantly decreasing Pgc1α gene expression and altered the fatty acid composition of rat liver mitochondrial membrane PL.
Published: 2022

37. Exploração botânica rápida e inovadora de um transecto de 320 km no leste da Amazônia usando código de barras de DNA

Author: William MILLIKEN, Guillaume ODONNE, Julien ENGEL, François-Michel LE TOURNEAU, Uxue SUESCUN, Jérôme CHAVE, Royal Botanic Gardens [Kew], Laboratoire Ecologie, Evolution, Interactions des Systèmes amazoniens (LEEISA), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Guyane (UG)-Centre National de la Recherche Scientifique (CNRS), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Pôle de recherche pour l'organisation et la diffusion de l'information géographique (PRODIG (UMR_8586 / UMR_D_215 / UM_115)), Université Paris 1 Panthéon-Sorbonne (UP1)-Institut de Recherche pour le Développement (IRD)-AgroParisTech-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Evolution et Diversité Biologique (EDB), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SDV.EE]Life Sciences [q-bio]/Ecology, environment, matK, French Guiana-Brazil border, Tumucumaque, DNA barcoding, tree inventory, General Agricultural and Biological Sciences, rbcLa
Abstract: We explored a 320-km transect in the Tumucumaque mountain range along the border between southern French Guiana and Brazil, sampling all trees and lianas with DBH >= 10 cm in seven 25 x 25-m plots installed near seven boundary milestones. We isolated DNA from cambium tissue and sequenced two DNA barcodes (rbcLa and matK) to aid in species identification. We also collected fertile herbarium specimens from other species (trees/shrubs/herbs) inside and outside the plots. The selected DNA barcodes were useful at the family level but failed to identify specimens at the species level. Based on DNA barcoding identification, the most abundant families in the plots were Burseraceae, Fabaceae, Meliaceae, Moraceae, Myristicaceae and Sapotaceae. One third of the images of sampled plants posted on the iNaturalist website were identified by the community to species level. New approaches, including the sequencing of the ITS region and fast evolving DNA plastid regions, remain to be tested for their utility in the identification of specimens at lower taxonomic levels in floristic inventories in the Amazon region., Um transecto de 320 km foi explorado na Serra do Tumucumaque, ao longo da fronteira entre o sul da Guiana Francesa e o Brasil por meio da amostragem de todas as arvores e lianas com DAP . 10 cm em sete parcelas de 25 x 25 m instaladas perto de sete marcos fronteiricos. Isolamos DNA de tecido cambial e sequenciamos dois codigos de barra de DNA (rbcLa e matK) para auxiliar na identificacao das especies. Tambem coletamos especimes de herbario ferteis de outras especies (arvores/ arbustos/ervas) dentro e fora das parcelas. Os codigos de barra de DNA selecionados foram uteis em nivel de familia, mas nao conseguiram identificar especimes em nivel de especie. Com base na identificacao de DNA barcoding, as familias mais abundantes nas parcelas foram Burseraceae, Fabaceae, Meliaceae, Moraceae, Myristicaceae e Sapotaceae. Um terco das imagens de plantas amostradas postadas no website iNaturalist foram identificadas em nivel de especie. Novas abordagens, incluindo o sequenciamento da regiao ITS e regioes de DNA plastidial de rapida evolucao, ainda precisam ser testadas quanto a sua utilidade na identificacao de especimes ate niveis taxonomicos mais baixos em inventarios floristicos na regiao amazonica. PALAVRAS-CHAVE: codigo de barras de DNA, fronteira Guiana Francesa-Brasil, inventario de arvores, matK, rbcLa, Tumucumaque
Published: 2022

38. Unraveling Amazon tree community assembly using Maximum Information Entropy: a quantitative analysis of tropical forest ecology

Author: Bruno Garcia Luize, Milton Tirado, Veridiana Vizoni Scudeller, Marcelo Brilhante de Medeiros, Toby Pennington, Juliana Schietti, Aurora Levesley, Bianca Weiss Albuquerque, Lourens Poorter, Hirma Ramírez-Angulo, Juan David Cardenas Revilla, Egleé L. Zent, Domingos de Jesus Rodrigues, Everton José Almeida, Pascal Petronelli, Maria Aparecida Lopes, Diego Correa, William Milliken, Daniel Praia Portela de Aguiar, James A. Comiskey, Ben Hur Marimon-Junior, Italo Mesones, Eurídice N. Honorio Coronado, Edelcilio Marques Barbosa, Joost F. Duivenvoorden, Susan G. Laurance, Marcos Silveira, Ires Paula de Andrade Miranda, Corine Vriesendorp, Doug Daly, Katia Regina Casula, Luisa Fernanda Casas, Erika Berenguer, Dário Dantas do Amaral, Rafael L. Assis, Jens Kattge, Juliana Stropp, Edwin Pos, Henrik Balslev, Paul J. M. Maas, Ophelia Wang, José Ferreira Ramos, Jon Lloyd, Marcelino Carneiro Guedes, Geertje M. F. van der Heijden, Fernanda Coelho de Souza, Walter Palacios Cuenca, Vitor Hugo Freitas Gomes, Timothy R. Baker, Leandro Valle Ferreira, Nicolás Castaño Arboleda, Jérôme Chave, Carolina V. Castilho, María Natalia Umaña, Roosevelt García-Villacorta, George Pepe Gallardo Gonzales, Luis Valenzuela Gamarra, Hilda Paulette Dávila Doza, José Renan da Silva Guimarães, Raquel Thomas-Caesar, Hans ter Steege, Hernán Castellanos, Nállarett Dávila, Lionel Hernández, Yuri Oliveira Feitosa, Julien Engel, Olaf Bánki, Ángela Cano, Luiz de Souza Coelho, Gerhard Boenisch, Priscila Souza, André Braga Junqueira, Jochen Schöngart, Juan Fernando Phillips, Cid Ferreira, Gonzalo Rivas-Torres, Kenneth R. Young, Agustín Rudas, Ademir Roberto Ruschel, Elvis H. Valderrama Sandoval, Cláudia Baider, Mariana Victória Irume, Terry W. Henkel, Márcia Cléia Vilela dos Santos, Marcelo Petratti Pansonato, Timothy J. Killeen, Daniel Villarroel, Neidiane Farias Costa Reis, Stanford Zent, Rafael de Paiva Salomão, Georgia Pickavance, Daniela Pauletto, Karina Garcia-Cabrera, Rainiellen de Sá Carpanedo, Émile Fonty, Daniel Sabatier, Ima Célia Guimarães Vieira, Janaina Barbosa Pedrosa Costa, Emilio Vilanova Torre, Maíra da Rocha, William E. Magnusson, Manuel Augusto Ahuite Reategui, Ricardo Zárate Gómez, Renato R. Hilário, Juan Ernesto Guevara, Alfredo F. Fuentes, Charles E. Zartman, Karina Melgaço, Layon Oreste Demarchi, Marcelo Trindade Nascimento, Diogenes de Andrade Lima Filho, Joseph E. Hawes, Janaina da Costa de Noronha, Maria Pires Martins, Larissa Cavalheiro, Miles R. Silman, Francisco Dallmeier, Evlyn Márcia Moraes de Leão Novo, Freddy Ramirez Arevalo, Luiz Carlos de Matos Bonates, Jos Barlow, Milena Holmgren, Carlos A. Peres, William F. Laurance, Casimiro Mendoza, Roderick Zagt, Percy Núñez Vargas, Juan Carlos Licona, Sasha Cárdenas, John Terborgh, Isau Huamantupa-Chuquimaco, Susamar Pansini, Ligia Estela Urrego Giraldo, Maria Teresa Fernandez Piedade, Ted R. Feldpausch, César I.A. Vela, Oliver L. Phillips, Marcelo de Jesus Veiga Carim, José Julio de Toledo, Therany Gonzales, Kenneth J. Feeley, Ana Andrade, Patricio von Hildebrand, Bonifacio Mostacedo, Henrique E. M. Nascimento, Linder Felipe Mozombite Pinto, Reynaldo Linares-Palomino, Joice Ferreira, Jean-François Molino, Adriana Prieto, Christopher Baraloto, Jean-Louis Guillaumet, Luzmila Arroyo, Alvaro Duque, Alfonso Alonso, Yadvinder Malhi, Carlos Cerón, Anthony Di Fiore, J. Sebastián Tello, Luciane Ferreira Barbosa, Fernando Cornejo Valverde, José Leonardo Lima Magalhães, Carolina Levis, Rodrigo Sierra, Nigel C. A. Pitman, Iêda Leão do Amaral, William Farfan-Rios, Flávia Rodrigues Barbosa, C Gerardo Aymard, Natalino Silva, Hugo Mogollón, Francisca Dionízia de Almeida Matos, Paul V. A. Fine, Bruno Barçante Ladvocat Cintra, Adriano Costa Quaresma, Florian Wittmann, Vincent A. Vos, José Luís Camargo, Fernanda Carvalho, Tinde van Andel, Rogério Gribel, Beatriz Schwantes Marimon, Roel J. W. Brienen, Juan Carlos Montero, Alberto Vicentini, Freddie Draper, Marcos Ríos Paredes, Abel Monteagudo Mendoza, Angelo Gilberto Manzatto, Adeilza Felipe Sampaio, Boris Eduardo Villa Zegarra, Armando Torres-Lezama, David A. Neill, E. M. Jimenez, Rodolfo Vasquez, Bruce Hoffman, Dairon Cárdenas López, Alejandro Araujo-Murakami, Eduardo Martins Venticinque, Thiago Sanna Freire Silva, Helder Lima de Queiroz, John Ethan Householder, Gabriel Damasco, Bernardo M. Flores, Kyle G. Dexter, Pablo R. Stevenson, Miguel Alexiades, Aline Lopes, Alexandre S. Oliveira, Nathan J. B. Kraft, Flávia R. C. Costa, Maria Cristina Peñuela Mora, Emanuelle de Sousa Farias, Jose L. Pena, Marcelo F. Simon, Thaise Emilio, Apollo - University of Cambridge Repository, Oliveira, Alexandre A [0000-0001-5526-8109], University of St Andrews. School of Geography & Sustainable Development, Utrecht University [Utrecht], Instituto Nacional de Pesquisas da Amazônia (INPA), EMBRAPA Amazônia Oriental, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), ONF - Direction régionale de la Guyane [Cayenne], and Office national des forêts (ONF)
Subjects: 0106 biological sciences, Geography & travel, Bioinformatics, Ecology (disciplines), Entropy, Forests, Information theory, 010603 evolutionary biology, 01 natural sciences, Computational biology, thermodynamics and nonlinear dynamics, Econometrics, Life Science, Bosecologie en Bosbeheer, Stabilizing selection, Relative abundance distribution, Ecosystem, ddc:910, Mathematics, MCC, Tropical Climate, Multidisciplinary, GE, Ecology, Principle of maximum entropy, 3rd-DAS, Biodiversity, 15. Life on land, Plants, PE&RC, Forest Ecology and Forest Management, Biosystematiek, Computational biology and bioinformatics, Complex dynamics, Quantitative analysis (finance), Wildlife Ecology and Conservation, FOS: Biological sciences, [SDE]Environmental Sciences, Biosystematics, Probability distribution, Statistical physics, GE Environmental Sciences, 010606 plant biology & botany
Abstract: Funding: Floristic identification in plots in the RAINFOR forest monitoring network have been supported by the Natural Environment Research Council (grants NE/B503384/1, NE/ D01025X/1, NE/I02982X/1, NE/F005806/1, NE/D005590/1 and NE/I028122/1) and the Gordon and Betty Moore Foundation. In a time of rapid global change, the question of what determines patterns in species abundance distribution remains a priority for understanding the complex dynamics of ecosystems. The constrained maximization of information entropy provides a framework for the understanding of such complex systems dynamics by a quantitative analysis of important constraints via predictions using least biased probability distributions. We apply it to over two thousand hectares of Amazonian tree inventories across seven forest types and thirteen functional traits, representing major global axes of plant strategies. Results show that constraints formed by regional relative abundances of genera explain eight times more of local relative abundances than constraints based on directional selection for specific functional traits, although the latter does show clear signals of environmental dependency. These results provide a quantitative insight by inference from large-scale data using cross-disciplinary methods, furthering our understanding of ecological dynamics. Publisher PDF
Published: 2023

39. Habitat partitioning of soil microbial communities along an elevation gradient: from plant root to landscape scale

Author: Luis Merino‐Martín, Daniel Hernández‐Cáceres, Frédérique Reverchon, Guillermo Angeles‐Alvarez, Guangqi Zhang, Denis Dunoyer de Segonzac, Damien Dezette, Alexia Stokes, Universidad Rey Juan Carlos [Madrid] (URJC), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Red de Ecología Funcional, Instituto de Ecología, Veracruz, ADNid, Partenaires INRAE, Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), CONACYT-2, and ANR-16-CE03-0009,ECOPICS,Services écosystémiques souterrains produits par les communautés végétales le long de gradients altitudinaux en France et au Mexique(2016)
Subjects: Microbial diversity, Picea abies, Vaccinium myrtillus, French Alpes, Root traits, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, Mountain ecosystem, Juniperus communis, Soil properties, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Alpine ecosystem, Ecology, Evolution, Behavior and Systematics
Abstract: International audience; Within a landscape, multiple habitats exist for soil microbial communities. But how these habitats shape community composition requires an understanding of the way in which microbial diversity is impacted across a broad range of spatial scales. Mountain ecosystems are excellent systems to study microbial communities, because a multitude of climate and soil variables change within a relatively small distance. We investigated microbial community structure in bulk and rhizosphere soils beneath three plant species, Vaccinium myrtillus, Juniperus communis and Picea abies, that structure local plant communities along an elevation gradient in the French Alps. We examined the impact that climate, soil properties, plant diversity and plant root chemical and morphological traits had on microbial αand β-diversities. The most abundant bacterial phyla detected in both bulk and rhizosphere soils were Proteobacteria, Actinobacteria, Acidobacteria and Verrucomicrobia. Along the elevation gradient, bacterial phyla did not display a clear distribution pattern between bulk and rhizosphere soils. For fungi, dominant phyla were Ascomycota and Basidiomycota, and contrasting distribution patterns were found between bulk and rhizosphere soils. Overall, bacterial and fungal α-diversity responded differently to elevation as well to soil compartments (bulk versus rhizosphere soil), revealing no significant patterns in bulk soil beneath any of the structuring plant species, but increasing in the rhizosphere compartment of P. abies just below the treeline. Changes in bacterial β-diversity with elevation were related mostly to soil physical and chemical properties. Bacterial and fungal α-diversity in rhizosphere communities were more related to plant species identity, vegetation diversity and belowground plant traits compared to soil properties, whilst the opposite was found for bulk soil. Our results highlight that environmental changes at the landscape scale (e.g. associated to elevation, soil properties or climate), impact significantly soil microbial communities, but vegetation refines communities at a local scale via the rhizosphere niche.
Published: 2023

40. Drivers of soil biophysical processes along an elevational gradient at Pico de Orizaba volcano, Mexico

Author: Guillermo Angeles, Marycruz Álvarez-Jiménez, Fabien Anthelme, Isabelle Barois, José Luis Chaparro Carrillo, Nereyda Cruz-Maldonado, Thibaud Decaens, Martín de los Santos-Bailón, Stéphane Fourtier, Emmanuel García-Gutiérrez, David García-Segura, Rodrigo Gómez-Aguilar, Antonio Gómez-Anaya, Eduardo Hernández, Daniel Hernández-Cáceres, Leonor Jiménez, Beatriz E. Marín-Castro, Luis Merino-Martín, Marco A. Morales-Martínez, Edwin U. Monfil-León, René A. Palestina, Carlos Pimentel-Reyes, Ricardo Quiroz Reyes, Frédérique Reverchon, Hervé Rey, Catherine Roumet, Christina D. Siebe-Grabach, Katrin Sieron, Víctor Vázques Reyes, Monique Weemstra, Alexia Stokes, Instituto de Ecologia (INECOL), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Universidad Autónoma del Estado de México (UAEM), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Autonomous University of Coahuila, Partenaires INRAE, Universidad Veracruzana, Universidad Rey Juan Carlos [Madrid] (URJC), Universidad de Ciencias y Artes de Chiapas, Inrae, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), CONACYT–2 73659, and ANR-16-CE03-0009,ECOPICS,Services écosystémiques souterrains produits par les communautés végétales le long de gradients altitudinaux en France et au Mexique(2016)
Subjects: Cultural Studies, Bulk soil and rhizosphere microbial communities, Carbon storage, Soil structure and soil moisture monitoring, High mountain ecosystem, [SDE]Environmental Sciences, Religious studies, Plant community traits, Soil hydrophysical properties, Soil macro and meso‑fauna, Elevational gradient, Soil biodiversity
Abstract: Elevational gradients are characterized by major shifts in environmental conditions, reflected through changes in climatic and soil variables. These shifts strongly impact the composition, community structure and specific functional traits of vegetation. Vegetation, in turn, influences soil properties through litter input, root growth and the release of root exudates, thereby influencing soil microbial and faunal communities. Here, we report and briefly describe data of soil and underlying bedrock physical and chemical properties, climatic variables, plant community composition and species abundance, soil microbial diversity and macro and mesofaunal abundance and diversity. Data are provided for 6 elevations (3400–4600 m) ranging from pine forest to alpine prairie. We focused on soil biophysical properties beneath several keystone or community-structuring plant species with different growth forms: (1) tree (Pinus hartwegii Lindl.); shrub (Oxylobus arbutifolius (Kunth) A. Gray and Chionolaena lavandulifolia (Kunth ex Kunth) Benth. & Hook.f. ex B.D.Jacks.); and (3) herb (Lupinus montanus Kunth and Senecio roseus Sch.Bip.). These data are useful for understanding how shifts in abiotic conditions and vegetation communities along an elevational gradient affect soil ecosystem services such as water infiltration, soil aggregation and carbon (C) storage, and modify soil biodiversity. The collected data also provide useful information to understand how alpine vegetation, soil macro- and meso-fauna, and soil bacterial communities may shift under a climate change scenario.
Published: 2023

41. Exploring the link between spectral variance and upper canopy taxonomic diversity in a tropical forest: influence of spectral processing and feature selection

Author: Badourdine, Colette, Féret, Jean‐baptiste, Pélissier, Raphaël, Vincent, Grégoire, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Territoires, Environnement, Télédétection et Information Spatiale (UMR TETIS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), ANR-17-CE32-0001,BioCop,Suivi de la biodiversité tropicale avec les satellites Sentinel-2 du programme Copernicus(2017), and ANR-10-LABX-0025,CEBA,CEnter of the study of Biodiversity in Amazonia(2010)
Subjects: forest canopy, tropical forest biodiversity, Biodiversity mapping, imaging spectroscopy, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, features selection, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, spectral diversity
Abstract: International audience; The rapid loss of biodiversity in tropical rainforests calls for new remote sensing approaches capable of providing rapid estimates of biodiversity over large areas. Imaging spectroscopy has shown potential for the estimation of taxonomic diversity, but the link with spectral diversity has not been investigated extensively with experimental data so far. We explored the relationship between taxonomic diversity and visible to near infrared spectral variance derived from various spectral processing techniques by means of a labeled dataset comprising 2000 individual tree crowns from 200 species from an experimental tropical forest station in French Guiana. We generated a set of artificially assembled communities covering a broad range of taxonomic diversity from this experimental dataset. We analyzed the impact of various processing steps: spectral normalization, spectral transformation through principal component analysis, and feature selection. Correlation between taxonomic diversity and inter-specific spectral variance was strong. Correlation was lower with total spectral variance, with or without normalization and transformation. Dimensionality reduction through feature selection resulted in dramatic improvement of the correlation between Shannon index and spectral variance. While airborne diversity mapping of tropical forest may not be at hand yet, our results confirm that spectral diversity metrics, when computed on properly preprocessed and selected spectral information can predict taxonomic diversity in tropical ecosystems.
Published: 2023

42. Clé d'identification des graines des principales adventices de La Réunion - version 1 - 55 espèces

Author: Schwartz, Marion, Etheve, Abel, Le Bourgeois, Thomas, Agroécologie et Intensification Durables des cultures annuelles (UPR AIDA), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), and Département Systèmes Biologiques (Cirad-BIOS)
Subjects: Identification, Clé de détermination, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, Adventices, Adventices tropicales, Graines, La Réunion
Abstract: International audience; Les adventices représentent une contrainte majeure pour le développement des cultures, particulièrement en milieu tropical. L’étude de la biologie des adventices et une meilleure connaissance de leur comportement permettraient à terme une meilleure gestion de l’enherbement et une diminution de l’impact des produits phytosanitaires.Cette clé a pour but de caractériser et décrire les graines des principales adventices de La Réunion et de pouvoir déterminer l’espèce d’adventice correspondant à une graine récoltée ou ramassée dans une parcelle. Elle permetnotamment aux chercheurs, ingénieurs ou expérimentateurs de réaliser des expérimentations pour étudier et évaluer le stock semencier d’une parcelle.Cette clé est destinée à être complétée au fur et à mesure de la caractérisation des graines de nouvelles espèces d’adventices. Les versions de cette clé d’identification seront donc mises à jour au cours du temps
Published: 2023

43. Piperaceae Raddianae : A taxonomic and nomenclatural study of Giuseppe Raddi's Brazilian Piperaceae

Author: Elsie Franklin Guimarães, George Azevedo de Queiroz, Piero G. Delprete, Riccardo M. Baldini, Instituto de Pesquisas Jardim Botanico do Rio de Janeiro (JBRJ), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), and Università degli Studi di Firenze = University of Florence (UniFI)
Subjects: Neotropics, Rio de Janeiro, Typification, Plant Science, South America, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, Piper, Ecology, Evolution, Behavior and Systematics, Peperomia
Abstract: International audience; Giuseppe Raddi collected in the state of Rio de Janeiro, Brazil, from November 1817 to June 1818. He published 12 new names in the family Piperaceae in an article that appeared in 1828. Raddi's article has not been cited in specialized literature and these names were never properly studied. In the present study, these names are typified, and their identity is clarified. Five new combinations are here presented, namely Peperomia callitrichoides, P. catesbaeifolia, P. cylindrica, P. gracillima, and P. plantaginifolia. The new name Piper raddianum is published, honoring him and his botanical accomplishments. In addition, the names Piper scutatum, Piper scolopendrifolium, Piper truncatum, Piper fluminense, Steffensia ampla (≡ Piper amplum), Piper variabile, Piper catesbaeafolium, Piper cylindricum, Piper pumilum, Peperomia martiana, and Piper gracillimum are here lectotypified.
Published: 2023

44. Geographic patterns of tree dispersal modes in Amazonia and their ecological correlates

Author: Correa, Diego F., Stevenson, Pablo R., Umaña, Maria Natalia, Coelho, Luiz de Souza, Lima Filho, Diógenes de Andrade, Salomão, Rafael P., do Amaral, Iêda Leão, Wittmann, Florian, Matos, Francisca Dionízia de Almeida, Castilho, Carolina V., Phillips, Oliver L., Guevara, Juan Ernesto, Carim, Marcelo de Jesus Veiga, Magnusson, William E., Sabatier, Daniel, Molino, Jean-François, Irume, Mariana Victória, Martins, Maria Pires, Guimarães, José Renan da Silva, Bánki, Olaf S., Piedade, Maria Teresa Fernandez, Pitman, Nigel C. A., Monteagudo Mendoza, Abel, Ramos, José Ferreira, Luize, Bruno Garcia, Novo, Evlyn Márcia Moraes de Leão, Núñez Vargas, Percy, Silva, Thiago Sanna Freire, Venticinque, Eduardo Martins, Manzatto, Angelo Gilberto, Reis, Neidiane Farias Costa, Terborgh, John W., Casula, Katia Regina, Honorio Coronado, Euridice N., Montero, Juan Carlos, Schöngart, Jochen, Cárdenas López, Dairon, Costa, Flávia R. C., Quaresma, Adriano Costa, Zartman, Charles Eugene, Killeen, Timothy J., Marimon, Beatriz S., Marimon-Junior, Ben Hur, Vasquez, Rodolfo, Mostacedo, Bonifacio, Demarchi, Layon O., Feldpausch, Ted R., Assis, Rafael L., Baraloto, Christopher, Engel, Julien, Petronelli, Pascal, Castellanos, Hernán, de Medeiros, Marcelo Brilhante, Simon, Marcelo Fragomeni, Andrade, Ana, Camargo, José Luís, Laurance, Susan G. W., Laurance, William F., Maniguaje Rincón, Lorena, Schietti, Juliana, Sousa, Thaiane R., Farias, Emanuelle de Sousa, Lopes, Maria Aparecida, Magalhães, José Leonardo Lima, Nascimento, Henrique Eduardo Mendonça, de Queiroz, Helder Lima, Aymard C., Gerardo A., Brienen, Roel, Cardenas Revilla, Juan David, Vieira, Ima Célia Guimarães, Cintra, Bruno Barçante Ladvocat, Feitosa, Yuri Oliveira, Duivenvoorden, Joost F., Mogollón, Hugo F., Araujo-Murakami, Alejandro, Ferreira, Leandro Valle, Lozada, José Rafael, Comiskey, James A., de Toledo, José Julio, Damasco, Gabriel, Dávila, Nállarett, García-Villacorta, Roosevelt, Lopes, Aline, Vicentini, Alberto, Draper, Freddie C., Castaño Arboleda, Nicolás, Cornejo Valverde, F., Cornejo Valverde, Fernando, Alonso, Alfonso, Dallmeier, Francisco, Gomes, Vitor H. F., Neill, David, de Aguiar, Daniel P. P., Arroyo, Luzmila, Carvalho, Fernanda Antunes, de Souza, Fernanda Coelho, do Amaral, Dário Dantas, Feeley, Kenneth J., Gribel, Rogerio, Pansonato, Marcelo Petratti, Barlow, Jos, Berenguer, Erika, Ferreira, Joice, Fine, Paul V. A., Guedes, Marcelino Carneiro, Jimenez, Eliana M., Licona, Juan Carlos, Peñuela Mora, Maria Cristina, Villa Zegarra, Boris Eduardo, Cerón, Carlos, Fonty, Émile, Henkel, Terry W., Householder, John Ethan, Maas, Paul, Silveira, Marcos, Stropp, Juliana, Thomas, Raquel, Durgante, Flávia Machado, Baker, Tim R., Daly, Doug, Huamantupa-Chuquimaco, Isau, Milliken, William, Pennington, Toby, Ríos Paredes, Marcos, Molina, Pardo, Fuentes, Alfredo, Klitgaard, Bente, Marcelo Peña, José Luis, Peres, Carlos A., Silman, Miles R., Tello, J. Sebastián, Campelo, Wegliane, Chave, Jerome, Di Fiore, Anthony, Hilário, Renato Richard, Phillips, Juan Fernando, Rivas-Torres, Gonzalo, van Andel, Tinde R., von Hildebrand, Patricio, Pereira, Luciana de Oliveira, Barbosa, Edelcilio Marques, Barbosa, Flávia Rodrigues, Bonates, Luiz Carlos de Matos, Carpanedo, Rainiellen de Sá, Dávila Doza, Hilda Paulette, Zárate Gómez, Ricardo, Gonzales, Therany, Gallardo Gonzales, George Pepe, Hoffman, Bruce, Junqueira, André Braga, Malhi, Yadvinder, Miranda, Ires Paula de Andrade, Mozombite Pinto, Linder Felipe, Prieto, Adriana, Jesus Rodrigues, Domingos de, Rudas, Agustín, Ruschel, Ademir R., Silva, Natalino, Vela, César I. A., Vos, Vincent Antoine, Zent, Stanford, Zent, Egleé L., Noronha, Janaína Costa, Albuquerque, Bianca Weiss, Cano, Angela, Carrero Márquez, Yrma Andreina, Costa, Janaina Barbosa Pedrosa, Flores, Bernardo Monteiro, Galbraith, David, Holmgren, Milena, Kalamandeen, Michelle, Nascimento, Marcelo Trindade, Oliveira, Alexandre A., Ramirez-Angulo, Hirma, Rocha, Maira, Scudeller, Veridiana Vizoni, Sierra, Rodrigo, Tirado, Milton, van der Heijden, Geertje, Vilanova Torre, Emilio, Vriesendorp, Corine, Pombo, Maihyra Marina, Ahuite Reategui, Manuel Augusto, Baider, Cláudia, Balslev, Henrik, Cárdenas, Sasha, Casas, Luisa Fernanda, Farfan-Rios, William, Ferreira, Cid, Linares-Palomino, Reynaldo, Mendoza, Casimiro, Mesones, Italo, Torres-Lezama, Armando, Urrego Giraldo, Ligia Estela, Villarroel, Daniel, Zagt, Roderick, Parada, Germaine Alexander, Alexiades, Miguel N., de Oliveira, Edmar Almeida, Garcia-Cabrera, Karina, Hernandez, Lionel, Palacios Cuenca, Walter, Pansini, Susamar, Pauletto, Daniela, Ramirez Arevalo, Freddy, Sampaio, Adeilza Felipe, Valderrama Sandoval, Elvis H., Valenzuela Gamarra, Luis, ter Steege, Hans, DIEGO F. CORREA, UNIVERSIDAD DE LOS ANDES, PABLO R. STEVENSON, UNIVERSIDAD DE LOS ANDES, MARIA NATALIA UMAÑA, UNIVERSITY OF MICHIGAN, LUIZ DE SOUZA COELHO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, DIÓGENES DE ANDRADE LIMA FILHO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, RAFAEL P. SALOMÃO, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA, IÊDA LEÃO DO AMARAL, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, FLORIAN WITTMANN, KARLSRUHE INSTITUTE OF TECHNOLOGY, FRANCISCA DIONÍZIA DE ALMEIDA MATOS, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, CAROLINA VOLKMER DE CASTILHO, CPAF-RR, OLIVER L. PHILLIPS, UNIVERSITY OF LEEDS, JUAN ERNESTO GUEVARA, UNIVERSIDAD DE LAS AMÉRICAS, MARCELO DE JESUS VEIGA CARIM, INSTITUTO DE PESQUISAS CIENTÍFICAS E TECNOLÓGICAS DO AMAPÁ, WILLIAM E. MAGNUSSON, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, DANIEL SABATIER, UNIVERSITÉ DE MONTPELLIER, JEAN-FRANÇOIS MOLINO, UNIVERSITÉ DE MONTPELLIER, MARIANA VICTÓRIA IRUME, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, MARIA PIRES MARTINS, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, JOSÉ RENAN DA SILVA GUIMARÃES, AMCEL AMAPÁ FLORESTAL E CELULOSE, OLAF S. BÁNKI, NATURALIS BIODIVERSITY CENTER, MARIA TERESA FERNANDEZ PIEDADE, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, NIGEL C. A. PITMAN, THE FIELD MUSEUM, ABEL MONTEAGUDO MENDOZA, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO, JOSÉ FERREIRA RAMOS, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, BRUNO GARCIA LUIZE, UNIVERSIDADE ESTADUAL DE CAMPINAS, EVLYN MÁRCIA MORAES DE LEÃO NOVO, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS, PERCY NÚÑEZ VARGAS, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO, THIAGO SANNA FREIRE SILVA, UNIVERSITY OF STIRLING, EDUARDO MARTINS VENTICINQUE, UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE, ANGELO GILBERTO MANZATTO, UNIVERSIDADE FEDERAL DE RONDÔNIA, NEIDIANE FARIAS COSTA REIS, UNIVERSIDADE FEDERAL DE RONDÔNIA, JOHN W. TERBORGH, UNIVERSITY OF FLORIDA, KATIA REGINA CASULA, UNIVERSIDADE FEDERAL DE RONDÔNIA, EURIDICE N. HONORIO CORONADO, INSTITUTO DE INVESTIGACIONES DE LA AMAZONÍA PERUANA, JUAN CARLOS MONTERO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, JOCHEN SCHÖNGART, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, DAIRON CÁRDENAS LÓPEZ, INSTITUTO SINCHI, FLÁVIA R. C. COSTA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, ADRIANO COSTA QUARESMA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, CHARLES EUGENE ZARTMAN, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, TIMOTHY J. KILLEEN, AGTECA-AMAZONICA, BEATRIZ S. MARIMON, UNIVERSIDADE DO ESTADO DE MATO GROSSO, BEN HUR MARIMON-JUNIOR, UNIVERSIDADE DO ESTADO DE MATO GROSSO, RODOLFO VASQUEZ, JARDÍN BOTÁNICO DE MISSOURI, BONIFACIO MOSTACEDO, UNIVERSIDAD AUTÓNOMA GABRIEL RENÉ MORENO, LAYON O. DEMARCHI, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, TED R. FELDPAUSCH, UNIVERSITY OF LEEDS, RAFAEL L. ASSIS, UNIVERSITY OF OSLO, CHRISTOPHER BARALOTO, FLORIDA INTERNATIONAL UNIVERSITY, JULIEN ENGEL, UNIVERSITÉ DE MONTPELLIER, PASCAL PETRONELLI, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT, HERNÁN CASTELLANOS, UNIVERSIDAD NACIONAL EXPERIMENTAL DE GUAYANA, MARCELO BRILHANTE DE MEDEIROS, Cenargen, MARCELO FRAGOMENI SIMON, Cenargen, ANA ANDRADE, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, JOSÉ LUÍS CAMARGO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, SUSAN G. W. LAURANCE, JAMES COOK UNIVERSITY, WILLIAM F. LAURANCE, JAMES COOK UNIVERSITY, LORENA MANIGUAJE RINCÓN, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, JULIANA SCHIETTI, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, THAIANE R. SOUSA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, EMANUELLE DE SOUSA FARIAS, INSTITUTO LEÔNIDAS E MARIA DEANE, MARIA APARECIDA LOPES, UNIVERSIDADE FEDERAL DO PARÁ, JOSÉ LEONARDO LIMA MAGALHÃES, UNIVERSIDADE FEDERAL DO PARÁ, HENRIQUE EDUARDO MENDONÇA NASCIMENTO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, HELDER LIMA DE QUEIROZ, INSTITUTO DE DESENVOLVIMENTO SUSTENTÁVEL MAMIRAUÁ, GERARDO A. AYMARD C., UNIVERSIDAD NACIONAL EXPERIMENTAL DE LOS LLANOS OCCIDENTALES 'EZEQUIEL ZAMORA', ROEL BRIENEN, UNIVERSITY OF LEEDS, JUAN DAVID CARDENAS REVILLA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, IMA CÉLIA GUIMARÃES VIEIRA, MUSEU PARAENSE EMÍLIO GOELDI, BRUNO BARÇANTE LADVOCAT CINTRA, UNIVERSIDADE DE SAO PAULO, YURI OLIVEIRA FEITOSA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, JOOST F. DUIVENVOORDEN, UNIVERSITY OF AMSTERDAM, HUGO F. MOGOLLÓN, ENDANGERED SPECIES COALITION, ALEJANDRO ARAUJO-MURAKAMI, UNIVERSIDAD AUTÓNOMA GABRIEL RENE MORENO, LEANDRO VALLE FERREIRA, MUSEU PARAENSE EMÍLIO GOELDI, JOSÉ RAFAEL LOZADA, UNIVERSIDAD DE LOS ANDES, JAMES A. COMISKEY, NATIONAL PARK SERVICE, JOSÉ JULIO DE TOLEDO, UNIVERSIDADE FEDERAL DO AMAPÁ, GABRIEL DAMASCO, UNIVERSITY OF GOTHENBURG, NÁLLARETT DÁVILA, UNIVERSIDADE ESTADUAL DE CAMPINAS, ROOSEVELT GARCÍA-VILLACORTA, CENTRO DE INNOVACIÓN CIENTÍFICA AMAZÓNICA, ALINE LOPES, UNIVERSIDADE DE BRASILIA, ALBERTO VICENTINI, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, FREDDIE C. DRAPER, UNIVERSITY OF LIVERPOOL, NICOLÁS CASTAÑO ARBOLEDA, INSTITUTO SINCHI, FERNANDO CORNEJO VALVERDE, ANDES TO AMAZON BIODIVERSITY PROGRAM, ALFONSO ALONSO, SMITHSONIAN CONSERVATION BIOLOGY INSTITUTE, FRANCISCO DALLMEIER, SMITHSONIAN CONSERVATION BIOLOGY INSTITUTE, VITOR H. F. GOMES, CENTRO UNIVERSITÁRIO DO PARÁ, DAVID NEILL, UNIVERSIDAD ESTATAL AMAZÓNICA, DANIEL P. P. DE AGUIAR, MINISTÉRIO PÚBLICO DO ESTADO DO AMAZONAS, LUZMILA ARROYO, UNIVERSIDAD AUTÓNOMA GABRIEL RENE MORENO, FERNANDA ANTUNES CARVALHO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, FERNANDA COELHO DE SOUZA, UNIVERSITY OF LEEDS, DÁRIO DANTAS DO AMARAL, MUSEU PARAENSE EMÍLIO GOELDI, KENNETH J. FEELEY, UNIVERSITY OF MIAMI, ROGERIO GRIBEL, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, MARCELO PETRATTI PANSONATO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, JOS BARLOW, LANCASTER UNIVERSITY, ERIKA BERENGUER, LANCASTER UNIVERSITY, JOICE NUNES FERREIRA, CPATU, PAUL V. A. FINE, UNIVERSITY OF CALIFORNIA, MARCELINO CARNEIRO GUEDES, CPAF-AP, ELIANA M. JIMENEZ, UNIVERSIDAD NACIONAL DE COLOMBIA, JUAN CARLOS LICONA, INSTITUTO BOLIVIANO DE INVESTIGACION FORESTAL, MARIA CRISTINA PEÑUELA MORA, UNIVERSIDAD REGIONAL AMAZÓNICA IKIAM, BORIS EDUARDO VILLA ZEGARRA, DIRECCÍON DE EVALUACIÓN FORESTAL Y DE FAUNA SILVESTRE, CARLOS CERÓN, UNIVERSIDAD CENTRAL DO EQUADOR, ÉMILE FONTY, UNIVERSITÉ DE MONTPELLIER, TERRY W. HENKEL, HUMBOLDT STATE UNIVERSITY, JOHN ETHAN HOUSEHOLDER, KARLSRUHE INSTITUTE OF TECHNOLOGY, PAUL MAAS, NATURALIS BIODIVERSITY CENTER, MARCOS SILVEIRA, UNIVERSIDADE FEDERAL DO ACRE, JULIANA STROPP, MUSEO NACIONAL DE CIENCIAS NATURALES, RAQUEL THOMAS, IWOKRAMA INTERNATIONAL CENTRE FOR RAIN FOREST CONSERVATION AND DEVELOPMENT, FLÁVIA MACHADO DURGANTE, KARLSRUHE INSTITUTE OF TECHNOLOGY, TIM R. BAKER, UNIVERSITY OF LEEDS, DOUG DALY, NEW YORK BOTANICAL GARDEN, ISAU HUAMANTUPA-CHUQUIMACO, UNIVERSIDAD NACIONAL AMAZÓNICA DE MADRE DE DIOS, WILLIAM MILLIKEN, ROYAL BOTANIC GARDENS, TOBY PENNINGTON, UNIVERSITY OF EXETER, MARCOS RÍOS PAREDES, SERVICIOS DE BIODIVERSIDAD EIRL, PARDO MOLINA, UNIVERSIDAD AUTÓNOMA DEL BENI JOSÉ BALLIVIÁN, ALFREDO FUENTES, UNIVERSIDAD MAYOR DE SAN ANDRÉS, BENTE KLITGAARD, ROYAL BOTANIC GARDENS, JOSÉ LUIS MARCELO PEÑA, UNIVERSIDAD NACIONAL DE JAÉN, CARLOS A. PERES, UNIVERSITY OF EAST ANGLIA, MILES R. SILMAN, WAKE FOREST UNIVERSITY, J. SEBASTIÁN TELLO, MISSOURI BOTANICAL GARDEN, WEGLIANE CAMPELO, UNIVERSIDADE FEDERAL DO AMAPÁ, JEROME CHAVE, UNIVERSITÉ PAUL SABATIER, ANTHONY DI FIORE, UNIVERSITY OF TEXAS AT AUSTIN, RENATO RICHARD HILÁRIO, UNIVERSIDADE FEDERAL DO AMAPÁ, JUAN FERNANDO PHILLIPS, FUNDACIÓN PUERTO RASTROJO, GONZALO RIVAS-TORRES, UNIVERSIDAD SAN FRANCISCO DE QUITO, TINDE R. VAN ANDEL, NATURALIS BIODIVERSITY CENTER, PATRICIO VON HILDEBRAND, FUNDACIÓN ESTACIÓN DE BIOLOGÍA, LUCIANA DE OLIVEIRA PEREIRA, UNIVERSITY OF EXETER, EDELCILIO MARQUES BARBOSA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, FLÁVIA RODRIGUES BARBOSA, UNIVERSIDADE FEDERAL DO MATO GROSSO, LUIZ CARLOS DE MATOS BONATES, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, RAINIELLEN DE SÁ CARPANEDO, UNIVERSIDADE FEDERAL DO MATO GROSSO, HILDA PAULETTE DÁVILA DOZA, SERVICIOS DE BIODIVERSIDAD EIRL, RICARDO ZÁRATE GÓMEZ, INSTITUTO DE INVESTIGACIONES DE LA AMAZONÍA PERUANA, THERANY GONZALES, ACEER FOUNDATION, GEORGE PEPE GALLARDO GONZALES, SERVICIOS DE BIODIVERSIDAD EIRL, BRUCE HOFFMAN, AMAZON CONSERVATION TEAM, ANDRÉ BRAGA JUNQUEIRA, UNIVERSITAT AUTÒNOMA DE BARCELONA, YADVINDER MALHI, UNIVERSITY OF OXFORD, IRES PAULA DE ANDRADE MIRANDA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, LINDER FELIPE MOZOMBITE PINTO, SERVICIOS DE BIODIVERSIDAD EIRL, ADRIANA PRIETO, UNIVERSIDAD NACIONAL DE COLOMBIA, DOMINGOS DE JESUS RODRIGUES, UNIVERSIDADE FEDERAL DO MATO GROSSO, AGUSTÍN RUDAS, UNIVERSIDAD NACIONAL DE COLOMBIA, ADEMIR ROBERTO RUSCHEL, CPATU, NATALINO SILVA, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA, CÉSAR I. A. VELA, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO, VINCENT ANTOINE VOS, UNIVERSIDAD AUTÓNOMA DEL BENI JOSÉ BALLIVIÁN, STANFORD ZENT, INSTITUTO VENEZOLANO DE INVESTIGACIONES CIENTÍFICAS, EGLEÉ L. ZENT, INSTITUTO VENEZOLANO DE INVESTIGACIONES CIENTÍFICAS, JANAÍNA COSTA NORONHA, UNIVERSIDADE FEDERAL DO MATO GROSSO, BIANCA WEISS ALBUQUERQUE, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, ANGELA CANO, UNIVERSIDAD DE LOS ANDES, YRMA ANDREINA CARRERO MÁRQUEZ, UNIVERSIDAD DE LOS ANDES, JANAINA BARBOSA PEDROSA COSTA, BERNARDO MONTEIRO FLORES, UNIVERSIDADE FEDERAL DE SANTA CATARINA, DAVID GALBRAITH, UNIVERSITY OF LEEDS, MILENA HOLMGREN, WAGENINGEN UNIVERSITY & RESEARCH, MICHELLE KALAMANDEEN, MCMASTER UNIVERSITY, MARCELO TRINDADE NASCIMENTO, UNIVERSIDADE ESTADUAL DO NORTE FLUMINENSE, ALEXANDRE A. OLIVEIRA, UNIVERSIDADE DE SAO PAULO, HIRMA RAMIREZ-ANGULO, UNIVERSIDAD DE LOS ANDES, MAIRA ROCHA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, VERIDIANA VIZONI SCUDELLER, UNIVERSIDADE FEDERAL DO AMAZONAS, RODRIGO SIERRA, GEOIS, MILTON TIRADO, GEOIS, GEERTJE VAN DER HEIJDEN, UNIVERSITY OF NOTTINGHAM, EMILIO VILANOVA TORRE, UNIVERSIDAD DE LOS ANDES, CORINE VRIESENDORP, THE FIELD MUSEUM, MAIHYRA MARINA POMBO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, MANUEL AUGUSTO AHUITE REATEGUI, PLUSPRETOL, CLÁUDIA BAIDER, UNIVERSIDADE DE SAO PAULO, HENRIK BALSLEV, AARHUS UNIVERSITY, SASHA CÁRDENAS, UNIVERSIDAD DE LOS ANDES, LUISA FERNANDA CASAS, UNIVERSIDAD DE LOS ANDES, WILLIAM FARFAN-RIOS, UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO, CID FERREIRA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA, REYNALDO LINARES-PALOMINO, SMITHSONIAN CONSERVATION BIOLOGY INSTITUTE, CASIMIRO MENDOZA, UNIVERSIDAD MAYOR DE SAN SIMON, ITALO MESONES, UNIVERSITY OF CALIFORNIA, ARMANDO TORRES-LEZAMA, UNIVERSIDAD DE LOS ANDES, LIGIA ESTELA URREGO GIRALDO, UNIVERSIDAD NACIONAL DE COLOMBIA, DANIEL VILLARROEL, UNIVERSIDAD AUTÓNOMA GABRIEL RENE MORENO, RODERICK ZAGT, TROPENBOS INTERNATIONAL, GERMAINE ALEXANDER PARADA, UNIVERSIDAD AUTÓNOMA GABRIEL RENE MORENO, MIGUEL N. ALEXIADES, UNIVERSITY OF KENT, EDMAR ALMEIDA DE OLIVEIRA, UNIVERSIDADE DO ESTADO DE MATO GROSSO, KARINA GARCIA-CABRERA, WAKE FOREST UNIVERSITY, LIONEL HERNANDEZ, UNIVERSIDAD NACIONAL EXPERIMENTAL DE GUAYANA, WALTER PALACIOS CUENCA, UNIVERSIDAD TÉCNICA DEL NORTE, SUSAMAR PANSINI, UNIVERSIDADE FEDERAL DE RONDÔNIA, DANIELA PAULETTO, UNIVERSIDADE FEDERAL DO OESTE DO PARÁ, FREDDY RAMIREZ AREVALO, UNIVERSIDAD NACIONAL DE LA AMAZONIA PERUANA, ADEILZA FELIPE SAMPAIO, UNIVERSIDADE FEDERAL DE RONDÔNIA, ELVIS H. VALDERRAMA SANDOVAL, UNIVERSIDAD NACIONAL DE LA AMAZONIA PERUANA, LUIS VALENZUELA GAMARRA, JARDÍN BOTÁNICO DE MISSOURI, HANS TER STEEGE, NATURALIS BIODIVERSITY CENTER., University of St Andrews. Geography & Sustainable Development, University of St Andrews. School of Geography & Sustainable Development, Universidad de los Andes [Bogota] (UNIANDES), University of Michigan [Ann Arbor], University of Michigan System, Instituto Nacional de Pesquisas da Amazônia (INPA), Universidade Federal Rural da Amazônia (UFRA), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Missouri Botanical Garden, and Naturalis Biodiversity Center [Leiden]
Subjects: Geography & travel, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, Florestas inundadas, flooded forests, terra-firme forests, Ecology, Evolution, Behavior and Systematics, ddc:910, Disperser‐availability hypothesis, Global and Planetary Change, Resource‐availability hypothesis, Ecology, anemochory, Terra‐firme forests, resource-availability hypothesis, DAS, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, PE&RC, dispersal agents, Biosystematiek, endozoochory, Floresta de terra firme, MCP, Floresta Pluvial Tropical, Wildlife Ecology and Conservation, synzoochory, Biosystematics, hydrochory, ARBORIZAÇÃO, Rain forests, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, disperser-availability hypothesis, Amazonian rain forests
Abstract: DFC acknowledges financial support from the Colombian institution Departamento Administrativo de Ciencia, Tecnología e Innovación COLCIENCIAS (Convocatoria 529 para estudios de doctorado en el exterior). PRS acknowledges the Faculty of Sciences, Universidad de los Andes, for financial support (INV-2021-128-2268). Aim : To investigate the geographic patterns and ecological correlates in the geographic distribution of the most common tree dispersal modes in Amazonia (endozoochory, synzoochory, anemochory and hydrochory). We examined if the proportional abundance of these dispersal modes could be explained by the availability of dispersal agents (disperser‐availability hypothesis) and/or the availability of resources for constructing zoochorous fruits (resource‐availability hypothesis). Time period : Tree‐inventory plots established between 1934 and 2019. Major taxa studied : Trees with a diameter at breast height (DBH) ≥ 9.55 cm. Location : Amazonia, here defined as the lowland rain forests of the Amazon River basin and the Guiana Shield. Methods : We assigned dispersal modes to a total of 5433 species and morphospecies within 1877 tree‐inventory plots across terra‐firme, seasonally flooded, and permanently flooded forests. We investigated geographic patterns in the proportional abundance of dispersal modes. We performed an abundance‐weighted mean pairwise distance (MPD) test and fit generalized linear models (GLMs) to explain the geographic distribution of dispersal modes. Results : Anemochory was significantly, positively associated with mean annual wind speed, and hydrochory was significantly higher in flooded forests. Dispersal modes did not consistently show significant associations with the availability of resources for constructing zoochorous fruits. A lower dissimilarity in dispersal modes, resulting from a higher dominance of endozoochory, occurred in terra‐firme forests (excluding podzols) compared to flooded forests. Main conclusions : The disperser‐availability hypothesis was well supported for abiotic dispersal modes (anemochory and hydrochory). The availability of resources for constructing zoochorous fruits seems an unlikely explanation for the distribution of dispersal modes in Amazonia. The association between frugivores and the proportional abundance of zoochory requires further research, as tree recruitment not only depends on dispersal vectors but also on conditions that favour or limit seedling recruitment across forest types. Publisher PDF
Published: 2023

45. Large cell triaxial tests of a partially saturated soil with vegetation

Author: Fraccica, Alessandro, Romero, Enrique, Fourcaud, Thierry, Italian National Institute for Environmental Protection and Research (ISPRA) [ITALY], Universitat Politècnica de Catalunya [Barcelona] (UPC), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), and International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE)
Subjects: Soil, Root Systems, Root reinforcement, General Earth and Planetary Sciences, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, General Environmental Science
Abstract: The use of vegetation roots as a nature-based solution against landslides and erosion requires the definition of sample preparation protocols and adoption of equipment that allows testing representative elementary volumes of the whole soil-root system. For this purpose, large cell triaxial compression tests were carried out on fallow and vegetated samples at different degrees of saturation. Samples were prepared by static compaction of a silty sand and seeded with Cynodon dactylon. The hydraulic state during plants growth was controlled and reproduced on bare soil samples. After isotropic compressions, the shearing phase was carried out at very low confining stresses (i.e., below 50 kPa). Tests were deemed to be comparable by assessing the normalised volume of roots with respect to soil, after shearing. For a given confining stress, soil samples with higher matric suction exhibited higher shear strength, furtherly increased by roots. The stress-strain behaviour observed in the vegetated soil systematically changed, when comparing tests at low and high matric suction values, due to the different mechanisms of vegetation reinforcement depending on the hydraulic state at the soil-root interface. The results were successfully interpreted within a failure criterion and skeleton stress framework for partially saturated soils, considering soil suction, degree of saturation, soil microstructure and the normalised volume of roots.
Published: 2023

46. Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

Author: Gomes‐da‐silva, Janaína, Filardi, Fabiana L.R., Barbosa, Maria Regina V., Baumgratz, José Fernando A., Bicudo, Carlos E.M., Cavalcanti, Taciana, Coelho, Marcus A.N., Costa, Andrea, Costa, Denise, Dalcin, Eduardo Couto, Labiak, Paulo, Lima, Haroldo, Lohmann, Lúcia, Maia, Leonor, Mansano, Vidal, Menezes, Mariângela, Morim, Marli, Moura, Carlos Wallace N., Lughadha, Eimear Nic, Peralta, Denilson, Prado, Jefferson, Roque, Nádia, Stehmann, João Renato, Sylvestre, Lana, Trierveiler‐pereira, Larissa, Walter, Bruno M.T., Zimbrão, Geraldo, Forzza, Rafaela, Abreu, Fernanda, Abreu, Maria, Abreu, Vanessa H.R., Acuña‐castillo, Rafael, Afonso, Edgar A.L., Agra, Leandro A.N.N., Agra, Maria, Aguiar, Daniel P.P., Aires, Elisa, Almeda, Frank, Almeida, Gracineide S.S., Almeida, Mariana, Almeida, Nicolli B.C., Almeida, Rafael, Almeida, Roberto B.P., Almeida, Thaís, Almeida, Eduardo, Alves, Daniela, Alves, Flávio, Alves, Karina N.L., Alves, Maria B.B., Alves, Rodolfo, Amaral, Maria C.E., Amaral, André L.S., Amélio, Leandro, Amorim, André M.A., Amorim, Bruno, Amorim, Eduardo, Amorim, Vivian, Andrade, Ivanilza, Andrade, Ray, André, Thiago, Andreata, Regina H.P., Andrino, Caroline, Ângulo, María, Anjos, Cassiane, Antar, Guilherme, Antonicelli, Mirian C.A., Antunes, Lorena l.C., Aona, Lidyanne Y.S., Arana, Marcelo, Aranha, João L.M., Araújo, Anderson G.A., Araujo, Andréa, Araújo, Camila, Araujo, Cintia A.T., Araujo, Flávia, Araújo, Mário H.T., Arbo, Maria, Arnou, Emily, Asprino, Renata, Assis, Francine, Assis, Leandro C.S., Assis, Marta, Athayde Filho, Francisco, Athiê‐souza, Sarah, Azevedo, Igor H.F., Bacci, Lucas, Barbosa, Camilo V.O., Barbosa, Juliana, Barbosa‐silva, Rafael, Barcellos, Ian, Barboza, Gloria, Barcelos, Flávia R.B., Barcelos, Laísa, Barreto, Kamilla l., Barros, Fábio, Barros, Thamires l.A., Barros‐barreto, Maria B.B., Bastos, Cid J.P., Bastos, Cláudia, Batista, João A.N., Batista, Marcella M.I., Bautista, Hortencia, Benelli, Adarilda, Berguecio, Nicolás, Bernacci, Luís, Beyer, Maila, Bezerra, Andrea C.C., Bezerra, Luísa M.P.A., Bezerra, Yuri R.L., Bianchetti, Luciano, Bigio, Narcísio, Biral, Leonardo, Bissoli, Vinícius, Bittencourt, Felipe, Bochorny, Thuane, Bohn, Amabily, Bohs, Lynn, Bojacá, Gabriel F.P., Boldorini, Abril, Boldrini, Ilsi, Bolson, Mônica, Bordin, Juçara, Bordon, Natali, Borges, Rafael A.X., Borges, Rodrigo l., Bortoluzzi, Roseli l.C., Bove, Claudia, Bovini, Massimo, Braga, João M.A., Braga, Nayara S.S., Branco, Suema, Brauner, Laiana, Braz, Denise, Bringel, João B.A., Brito, Antonio l.V.T., Brito, Eliete, Bruniera, Carla, Buchoski, Monica, Buck, William, Bueno, Norma, Bueno, Vinicius, Büneker, Henrique, Bünger, Mariana, Buril‐vital, Maria T.A., Burton, George, Cabral, Andressa, Cabral, Elsa l., Cabral, Fernanda, Cabral, Tiara, Caddah, Mayara, Caires, Claudenir, Caires, Taiara, Calazans, Luana S.B., Caldas, Diana K.D., Calió, Maria, Calvo, Joel, Câmara, Paulo E.A.S., Camargo, Rodrigo, Camelo, Mel, Campos‐rocha, Antonio, Cândido, Elisa, Canestraro, Bianca, Canto‐dorow, Thais, Cantuária, Patrick, Cara, Álison l., Cárdenas, Gabriela, Cardoso, Andréia, Cardoso, Domingos B.O.S., Cardoso, Jesiane, Cardoso, Leandro J.T., Cardoso, Pedro, Cardozo, Andrey l., M.D. Cardozo, Nállarett, Carmo, Dimas, Carmo, João A.M., Carneiro, Camila, Carneiro, Cláudia, Carrijo, Tatiana, Caruzo, Maria B.R., Carvalho, Catarina, Carvalho, Dariane A.S., Carvalho, Fernanda, Carvalho, Maria l.S., Carvalho, Jefferson, Carvalho‐silva, Micheline, Castello, Ana C.D., Castro, Márcia, Castro E Silva, Isabella, Catenacci, Fernanda, Cavalcanti, Laise, Cavalheiro, Larissa, Cervi, Armando, Chacon, Roberta, Chagas, Aline, Chagas, Earl C.O., Chautems, Alain, Chauveau, Olivier, Chequín, Renata, Christ, Anderson l., Christ, Jheniffer, Cidrão, Bruno, Clark, Lynn, Coelho, Alexa A.O.P., Coelho, Guilherme, Coelho, Rubens l.G., Colletta, Gabriel, Colli‐silva, Matheus, Conceição, Adilva, Conceição, Tulio, Condack, João P.S., Contro, Fernanda l., Cordeiro, Inês, Cordeiro, Luciana, Cordeiro, Wesley P.F.S., Côrtes, Ana l.A., Costa, Daniel, Costa, Fabiane, Costa, Fernanda S.N., Costa, Francisco C.P., Costa, Géssica A.G., Costa, Isabelle G.C.M., Costa, Itayguara, Costa, Jeferson, Costa, Jorge A.S., Costa, José G.S., Costa, Maria T.R., Costa, Mitchel I.A., Costa, Suzana, Costa, Thiago, Costa, Tiago, Costa E Silva, Maria, Costa‐lima, James l., Cota, Matheus M.T., Couceiro, Yuri S.V., Coutinho, Thales, Couto, Dayvid, Couto, Ricardo, Couvo, Anielly, Cyrillo, Stephany, Dal Molin, Luis, Dalastra, Claudenice, Damasceno, Rafaella G.L., de Lazzari, Lara R.P., Deble, Leonardo, Delfini, Carolina, Delgado Junior, Geadelande, Delgado‐salinas, Alfonso, Della, Aline, Delprete, Piero, Dematteis, Massimiliano, Dettke, Greta, Devecchi, Marcelo, Dewes, Talita, Di Maio, Fernando, Dias, Kauê N.L., Dias, Micheli, Dias, Pedro, Díaz, Yani C.A., Dittrich, Vinícius A.O., Domínguez, Yoannis, Dórea, Marcos, Dorneles, Mariane, Dressler, Stefan, Duarte, Marilia, Duran, Juan D.T., Dutilh, Julie H.A., Dutra, Letícia l., Dutra, Valquíria, Echternacht, Livia, Eggers, Lilian, Erkens, Roy H.J., Eslabão, Marcelo, Espírito Santo, Fábio, Esser, Hans‐joachim, Essi, Liliana, Esteves, Gerleni l., Esteves, Roberto l., Everling, Joel, Ezcurra, Cecilia, Facco, Marlon, Fader, Andrea A.C., Falcão, Marcus J.A., Fantecelle, Laura, Farco, Gabriela, Faria, Allan l.A., Faria, Ana P.G., Faria, Aparecida, Faria, Maria, Faria, Jair, Farias, Sabrina, Farias‐singer, Rosana, Farinaccio, Maria, Fernandes, Ana, Fernandes, Fernando, Fernandes, José, Fernandes, Rozijane, Fernandes, Thiago, Fernandes, Ulisses, Fernandes, Aluisio, Fernando, Emanoel M.P., Ferreira, Carlos D.M., Ferreira, Fabrício, Ferreira, Gabriel, Ferreira, João P.R., Ferreira, Priscila P.A., Ferreira, Silvana, Ferrucci, María, Fiaschi, Pedro, Fidanza, Karina, Filgueiras, Tarciso, Firetti, Fabiana, Fleischmann, Andreas, Florentín, Javier, Florentín, Mariela, Flores, Andréia, Flores, Jerônimo M.M., Flores, Thiago, Fonseca, Luiz H.M., Fontelas, Jean, Fontella‐pereira, Jorge, Forster, Wellington, Fraga, Claudio, Fraga, Fernanda R.M., Fraga, Santiago, França, Flávio, França, Juliana R.K.G., Francisco, Jéssica N.C., Freire‐fierro, Alina, Freitas, Fernanda, Freitas, Joelcio, Freitas, Maria, Fritsch, Peter, Funez, Luís, Furtado, Samyra, Gaem, Paulo, Gaglioti, André l., Gagnon, Edeline, Gama, Beatriz R.A., Garcia, Flávia C.P., Gasper, André l., Gerace, Samuele, Giacomin, Leandro l., Giaretta, Augusto, Gil, André S.B., Gissi, Danilo, Giuffre, Pamela M.W., Giulietti, Ana, Giussani, Liliana, Goebel, Gabriela, Goes, Monique, Góes, Luiz A.A., Goldenberg, Renato, Gomes, Beatriz, Gomes, Fernanda, Gomes, Mario, Gomes‐klein, Vera l., Gonçalez, Victor, Gonçalves, Ana P.S., Gonçalves, Deise J.P., Gonella, Paulo, Gonzaga, Augusto F.N., Gonzaga, Diego, González, Favio, Gonzatti, Felipe, Gouvêa, Yuri, Graham, Shirley A.T., Gregório, Bernarda, Grings, Martin, Groppo, Milton, Grossi, Mariana, Guarçoni, Elidio A.E., Guedes, Felipe, Guedes, Juliana, Guerra, Ethiéne, Guimarães, Elsie, Guimarães, Leonardo R.S., Guimarães, Paulo J.F., Gurgel, Ely S.C., Gutiérrez, Diego, Hall, Climbiê, Harley, Raymond, Hassemer, Gustavo, Hattori, Eric K.O., Hechenleitner, Paulina, Hefler, Sonia, Heiden, Gustavo, Henning, Tilo, Henriques, Diego, Hensold, Nancy, Hinoshita, Lucas K.R., Hirai, Regina, Hirao, Yasmin, Hiriart, Florencia, Hopkins, Michael J.G., Hoyos‐gómez, Saúl, Huamantupa, Isau, Hurbath, Fernanda, Iganci, João R.V., Ilkiu‐borges, Anna l., Imig, Daniela, Inácio, Camila, Indriunas, Alexandre, Jacques, Eliane l., Jacques, Suara S.A., Jaimes, Juliana, Jardim, Jomar, Jesus, Jôane, Jesus, Priscila, Jiménez‐mejías, Pedro, Johnson, David, Jordão, Lucas S.B., Jordão, Valner M.M., Jorge, Taciane, Kaehler, Miriam, Kameyama, Cíntia, Kataoka, Eric, Kessous, Igor, Kilipper, Julia, Kinoshita, Luiza, Klein, Viviane, Klitgaard, Bente, Knapp, Sandra, Koch, Ana, Koch, Ingrid, Kochanovski, Fábio, Kominami, Gabriel F.G., Konno, Tatiana U.P., Koschnitzke, Cristiana, Kotovski, Emília, Kriebel, Ricardo, Külkamp, Josimar, Leal, Brígida, Leal, Eduardo, Leite, Áurea C.F., Leite, Wellerson, Leitman, Paula, Lewis, Gwilym, Lima, Adriana, Lima, Alexandre, Lima, Duane F.S., Lima, Eliene, Lima, Jessica, Lima, Laíce F.G., Lima, Laura C.P., Lima, Letícia, Lima, Lucas, Lima, Luis F.P., Lima, Rita, Lima, Vanessa l., Link‐perez, Melanie, Lirio, Elton, Lobão, Adriana, Loeuille, Benoit F.P., Loiola, Maria I.B., Lombardi, Julio, Longhi‐wagner, Hilda, Lopes, Gabriel S.R., Lopes, Jenifer, Lopes, Letícia, Lopes, Raimundo, Lopes, Rosana, López, Maria, Lorencini, Tiago, Lorenzi, Harri, Lourenço, Ana R.L., Lourenço, Arthur, Louzada, Rafael, Lovo, Juliana, Lozano, Eduardo, Luber, Jaquelini, Lucas, Dióber, Lucas, Eve, Lüdtke, Raquel, Luebert, Federico, Luizi‐ponzo, Andrea, Luna, Bruna, Luna, Naédja K.M., Luz, Cíntia l.S., Machado, Anderson F.P., Machado, Evandro, Machado, Talita, Maciel, Jefferson, Maciel, Sebastião, Magalhães, Rodrigo, Magenta, Mara A.G., Maia, Talita, Mamede, Maria C.H., Marchioretto, Maria, Margalho, Luciano, Marinho, Lucas, Marques, Danilo, Marquete, Ronaldo, Marra, Raquel, Martins, Angela, Martins, Márcio l.L., Martins, Marcos B.S., Martins, Milena, Martins, Renata, Martins, Suzana, Masson, Victória, Matias, Ligia, Matos, Agnes M.M.V., Matos, Andreza, Matos, Fernando, Matozinhos, Carolina, Mattos, Cilene M.J., Mattos, Leticia, Matzenauer, William, Mauad, Anna V.S.R., Maya‐lastra, Carlos, Mayo, Simon, Mazine, Fiorella, Medeiros, Débora, Medeiros, Erika V.S.S., Medeiros, Herison, Medeiros, Maria C.M.P., Meerow, Alan, Meireles, Jose, Meireles, Leonardo, Meirelles, Julia, Melchor‐castro, Briggitthe, Mello, Zelia, Mello‐silva, Renato, Melo, André l., Melo, Caio V.V.D., Melo, Efigenia, Melo, José I.M., Mendes, Jone C.R., Mendes, Maria C.Q., Mendes‐silva, Ingrid, Meneguzzo, Thiago E.C., Menezes, Cristine, Menezes, Felipe G.P., Menini Neto, Luiz, Mentz, Lilian, Mesquita, Antônio l., Messias, Patrícia, Mezzonato‐pires, Ana, Michelangeli, Fabián, Miguel, João, Miguel, Laila, Milward‐de‐azevedo, Michaele, Miotto, Silvia T.S., Miranda, Cecília, Miranda, Vitor F.O., Mitchell, John, Molina, José M.P., Mondin, Cláudio, Monge, Marcelo, Monteiro, Daniele, Monteiro, Fernanda K.S., Monteiro, Raquel, Monteiro, Silvana H.N., Monteiro, Thiago, Monzoli, João V.L., Moore, Paloma G.P., Mora, Martha, Moraes, Marta, Moraes, Mónica, Morales, Juan, Morales, Matías, Moran, Robbin, Moreira, André l.C., Moreira, Andréia D.R., Moreira, Ariane, Moreira, Bianca, Moreira, Giselle l., Moreira, Kassio V.C., Moreira, Pablo F.F., Morokawa, Rosemeri, Moroni, Pablo, Mota, Aline, Mota, Michelle C.A., Mota, Nara F.O., Moura, Beryl E.L., Moura, Ingridy, Moura, Luíza, Moura, Ricardo l., Moura, Tania, Mundim, Júlia, Muniz, Francisca, Muniz, Leticia, Muniz Filho, Eduardo, Mynssen, Claudine, Nakajima, Jimi, Nascimento, Janaina G.A., Nascimento, José, Nascimento, Silvia, Nepomuceno, Francisco A.A., Nervo, Michelle, Nery, Eduardo, Neves, Beatriz, Nóbrega, Giseli, Nogueira, Matheus G.C., Nunes, Annelise, Nunes, Clebiana, Nunes, Teonildes, Oellgaard, Benjamin, O'Leary, Nataly, Oliveira, Adriana l.R., Oliveira, Ana C.S., Oliveira, Andreza G.S., Oliveira, Aron, Oliveira, Bárbara, Oliveira, Caetano, Oliveira, Fernanda M.C., Oliveira, Filipe G.A., Oliveira, Gleison, Oliveira, Gustavo, Oliveira, Hermeson, Oliveira, Iasmin l.C., Oliveira, Joésili C.P., Oliveira, José F.C., Oliveira, Juliana, Oliveira, Juliana R.P.M., Oliveira, Leticia G.R., Oliveira, Lilian F.A., Oliveira, Lorena, Oliveira, Luciana S.D., Oliveira, Marcia C.R., Oliveira, Márcio l.B., Oliveira, Marcos G.M., Oliveira, Marise H.V., Oliveira, Marla I.U., Oliveira, Regina, Oliveira, Renata, Oliveira, Reyjane, Oliveira, Rodrigo C.G., Oliveira, Sylvia, Oliveira, Ykaro, Orlandini, Priscila, Orsolano, Guilherme, Pacífico, Ricardo, Paglia, Isis, Paiva, Gabrielle C.P., Paixão, Liliane, Pastore, José F.B., Pastore, Mayara, Pastori, Tamara, Paucar, Jenny O.A., Paula‐souza, Juliana, Pederneiras, Leandro, Peichoto, Myriam, Peixoto, Ariane l., Pell, Susan, Pellegrini, Marco O.O., Pena, Nelson T.L., Pennington, Richard, Pereira, Amanda P.N., Pereira, Andreza S.S., Pereira, Jovani B.S., Pereira, Maria, Pereira, Paulo E.E., Pereira, Sidney, Pereira‐silva, Rafaela, Perez, Ana P.F., Pessoa, Cleiton, Pessoa, Clenia, Pessoa, Edlley, Pessoa, Maria C.R., Petrongari, Fernanda, Philbrick, Thomas, Pignal, Marc, Pimenta, Karena, Pinto, Rafael, Pioner, Natália, Pirani, José, Pizzardo, Raquel, Plos, Anabela, Ponce, Marta, Pontes, Juliana, Pontes, Ricardo A.S., Pontes, Tiago, Pontes‐pires, Aline, Pott, Vali, Prado, Thainá, Praia, Talita, Prance, Ghillean, Prange, Carolina, Prata, Ana P.N., Prochazka, Luana, Proença, Carolyn E.B., Prudêncio, Renato X.A., Pscheidt, Allan, Quaresma, Aclebia, Quaresma, Aline, Queiroz, George, Queiroz, Luciano, Queiroz, Rubens, Quinet, Alexandre, Ramos, Eliana, Ramos, Geraldo J.P., Rando, Juliana, Rebouças, Natanael, Reginato, Marcelo, Reis, Miguel M.R., Reis, Priscila, Reis‐silva, Genilson, Ribas, Osmar, Ribeiro, André R.O., Ribeiro, Carolina l., Ribeiro, José E.L.S., Ribeiro, Michel, Ribeiro, Pétala, Ribeiro, Rayane T.M., Ribeiro, Ricardo, Ribeiro, Rogério, Riina, Ricarda, Ritter, Mara, Rivadavia, Fernando, Rivera, Vanessa l., Rizzo, Beatriz, Rocha, Antônio E.S., Rocha, Lamarck, Rocha, Maria J.R., Rodrigues, Carine, Rodrigues, Christchellyn, Rodrigues, Izabella M.C., Rodrigues, Marianna, Rodrigues, Rodrigo Sampaio, Rodrigues, Rodrigo Schütz, Rodríguez, Juan F.C., Rodríguez, Pedro, Rollim, Isis, Romanini, Rebeca, Romão, Gerson, Romão, Marcos V.V., Romero, María, Romero, Rosana, Rosa, Bárbara, Rosa, Patrícia, Rosa, Priscila, Rosário, Alessandro, Rossa, Iago, Rossetto, Elson F.S., Rossi, Lucia, Rossini, Josiene, Royer, Carla, Rua, Gabriel, Sá, Cyl F.C., Saavedra, Mariana, Saka, Mariana, Sakuragui, Cassia, Salas, Roberto, Sales, Margareth, Salgado, Vanina, Salimena, Fátima R.G., Salino, Alexandre, Salvador, Rafael, Sampaio, Daniela, Sancho, Gisela, Sano, Paulo, Santana, Jéssica C.O., Santana, Karoline, Santana, Mariana, Santiago, Augusto C.P., Santos, Alessandra, Santos, Amanda P.B., Santos, Ana C.A.S., Santos, Andrea K.A., Santos, Carlos A.G., Santos, Emanuelle l., Santos, Felipe, Santos, Fernanda, Santos, João U.M., Santos, Karin, Santos, Leidiana l., Santos, Matheus, Santos, Otilene, Santos, Rafaela, Santos, Renata G.P., Santos, Thaíla V.A., Santos, Thiago, Santos, Vanessa, Santos‐silva, Fernanda, Santos‐silva, Juliana, São‐mateus, Wallace M.B., Saraiva, Deisy, Sarkinen, Tiina, Sartori, Ângela l.B., Sassone, Agostina, Sauthier, Luana, Scalon, Viviane, Scatigna, André, Schaefer, Juliana, Scheidegger, Najla M.B., Schliewe, Marcos, Schmidt, Eduard D.L., Schneider, Angelo, Schneider, Layla J.C., Schuettpelz, Eric, Schwartsburd, Pedro, Schwarz, Elizabeth, Scudeler, Ana l., Sebastiani, Renata, Secco, Ricardo, Secretti, Elisangela, Segalla, Rosane, Seleme, Elidiene, Semir, João, Senna, Luisa, Setubal, Robberson, Shimizu, Gustavo, Shirasuna, Regina, Silva, Adaíses S.M., Silva, Aline V.M., Silva, Amanda l., Silva, Anádria, Silva, Caroline C.A., Silva, Cassio, Silva, Christian, Silva, Cintia, Silva, Diego, Silva, Dilana, Silva, Fabio, Silva, Fernanda, Silva, Francismeire, Silva, Gabriel, Silva, Gledson, Silva, Guilherme, Silva, Gustavo H.L., Silva, João P.S., Silva, Juliana l., Silva, Juliene F.M., Silva, Leonardo, Silva, Lucas, Silva, Luciana, Silva, Luiza, Silva, Márcio, Silva, Marcio R.P., Silva, Marcos, Silva, Marcus F.O., Silva, Maria l.B., Silva, Maria S.D., Silva, Nilda M.F., Silva, Otávio l.M., Silva, Rafael, Silva, Raphael, Silva, Renata S.A., Silva, Renato, Silva, Ronaldo, Silva, Saura, Silva, Suelma, Silva, Tânia R.S., Silva, Tatiane, Silva, Thaynara, Silva, Wanderson l.S., Silva Filho, Pedro J.S., Silva‐castro, Milene, Silva‐cobra, Gisele, Silva‐gonçalves, Kelly, Silveira, Fernanda, Silveira, João, Silveira, Thamyres, Simão‐bianchini, Rosangela., Simões, Ana, Simões, André, Simon, Marcelo, Siniscalchi, Carolina, Siqueira, Carlos, Smidt, Eric, Smith, Alan, Smith, Nathan, Snak, Cristiane, Soares, Abel E.R., Soares, Arthur, Soares, Edson l.C., Soares, Kelen, Soares, Luanda, Soares, Marcos V.B., Soares, Maria l.C., Soares, Polyana, Soares, Raimundo, Sobrado, Sandra, Sobral, Marcos, Somner, Genise, Sothers, Cynthia, Sousa, Ana A.C., Sousa, Danilo J.L., Sousa, Francisco, Sousa, Gardene, Sousa, Hian C.F., Sousa, Leandro O.F., Sousa, Mayco W.S., Sousa, Valdeci, Souza, Aline, Souza, Bruno, Souza, Elnatan, Souza, Élvia, Souza, Filipe, Souza, Luzia, Souza, Marcelo, Souza, Maria A.D., Souza, Raquel M.B.S., Souza, Vinicius, Souza‐buturi, Fátima, Spina, Andréa, Stadnik, Aline M.S., Staggemeier, Vanessa, Stapf, María N.S., Stefano, Rodrigo, Stern, Stephen, Streher, Nathália, Suchoronczek, Andréia, Sundue, Michael, Takeuchi, Cátia, Tardivo, Rosângela, Taylor, Nigel, Teixeira, Michella D.R., Teles, Aristônio, Temponi, Livia, Thode, Verônica, Thomas, William, Tierno, Lorena, Tissot‐squalli, Mara, Toledo, Cássio A.P., Torke, Benjamin, Torres, Alicia, Torres, Daniela S.C., Torres‐leite, Filipe, Tozzi, Ana M.G.A., Trad, Rafaela, Trevisan, Rafael, Trovó, Marcelo, Tuler, Amélia, Tyrrell, Christopher, Udulutsch, Renata, Uribbe, Fernando, Vahl, Daiane, Valadares, Rodrigo, Valdemarin, Karinne, Valduga, Eduardo, Valente, Emilia, Valls, Jose F.M., van den Berg, Cássio, Vasconcelos, Liziane, Vasconcelos, Thaís N.C., Vasques, Diego, Vaz, Angela M.S.F., Versiane, Ana F.A., Versieux, Leonardo, Via Do Pico, Gisela, Viana, Pedro l., Vianna, Suelen, Vianna Filho, Marcelo D.M., Vidal, Kaio V.A., Vidal, João, Vieira, Fábio C.S., Vieira, Jaqueline, Vieira, João P.S., Vieira, Lucas l.A., Vieira, Tamara A.F., Vieira, Tiago l., Viera‐barreto, Jéssica, Vignoli‐silva, Márcia, Vilas Bôas‐bastos, Silvana, Villarreal, Juan, Vincent, Michael, Vita, Marcela, Vitta, Fabio, Viveros, Raquel, Viviurka, Fernanda, Vogel Ely, Cleusa, Volet, Danilo, Völtz, Rafael, Wallnöfer, Bruno, Wanderley, Maria G.L., Watanabe, Mauricio T.C., Weber, Philipy A.P., Weigend, Maximilian, Welker, Cassiano A.D., Windisch, Paulo, Yoshikawa, Vania, Zamengo, Henrique, Zanatta, Maria R.V., Zannin, Ana, Zappi, Daniela, Zeferino, Laís, Zelenski, Andréia, Zuloaga, Fernando, Zuntini, Alexandre, Maastricht Science Programme, RS: FSE MSP, JANAÍNA GOMES-DA-SILVA, Jardim Botânico do Rio de Janeiro, FABIANA L. R. FILARDI, MARIA REGINA V. BARBOSA, UFPB, JOSÉ FERNANDO A. BAUMGRATZ, CARLOS E. M. BICUDO, TACIANA BARBOSA CAVALCANTI, Cenargen, MARCUS A. N. COELHO, Prefeitura Municipal de Campinas, ANDREA F. COSTA, DENISE P. COSTA, Instituto de Pesquisas Jardim Botanico do Rio de Janeiro, EDUARDO COUTO DALCIN, Rio de Janeiro Botanical Garden Research Institute, PAULO LABIAK, UFPR, HAROLDO C. LIMA, Jardim Botânico do Rio de Janeiro, LÚCIA G. LOHMANN, USP, LEONOR C. MAIA, UFPE, VIDAL F. MANSANO, Jardim Botânico do Rio de Janeiro, MARIÂNGELA MENEZES, UFRJ, MARLI P. MORIM, Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, CARLOS WALLACE N. MOURA, EIMEAR NIC LUGHADHA, DENILSON F. PERALTA, JEFFERSON PRADO, Instituto de Botânica de São Paulo, NÁDIA ROQUE, UFBA, JOÃO RENATO STEHMANN, LANA S. SYLVESTRE, UFRJ, LARISSA TRIERVEILER-PEREIRA, Instituto de Botânica, São Paulo, BRUNO MACHADO TELES WALTER, Cenargen, GERALDO ZIMBRÃO, RAFAELA C. FORZZA, Jardim Botânico do Rio de Janeiro., Instituto de Pesquisas Jardim Botanico do Rio de Janeiro (JBRJ), Universidade Federal da Paraiba (UFPB), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Herbier de Guyane - IRD, and Institut de Recherche pour le Développement (IRD [Guyane])
Subjects: Grandes Datos, Natural history collections, natural history collections, América del Sur, Plant Science, Repositories, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, Colecciones de Historia Natural, Taxonomic impediment, Biodiversidad, Big data, flora, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, big data, taxonomic impedimen, Repositorios, Ecology, Evolution, Behavior and Systematics, biodiversity, Biodiversity, botany, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, Impedimento Taxonómico, South America, collaboration, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, repositories, Brazil
Abstract: The shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiver sity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxo nomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world’s known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world’s most biodiverse countries. We further identify collection gaps and summarize future goals that extend be yond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still un equally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the coun try. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora. Fil: Gomes da Silva, Janaina. Jardim Botânico do Rio de Janeiro: Rio de Janeiro, Brasil Fil: Filardi, Fabiana L.R. Jardim Botânico do Rio de Janeiro; Brasil Fil: Barbosa, María Regina de V. Universidade Federal da Paraíba: Joao Pessoa; Brasil Fil: Baumgratz, José Fernando Andrade. Jardim Botânico do Rio de Janeiro; Brasil Fil: de Mattos Bicudo, Carlos Eduardo. Instituto de Botânica. Núcleo de Pesquisa em Ecologia; Brasil Fil: Cavalcanti, Taciana. Empresa Brasileira de Pesquisa Agropecuária Recursos Genéticos e Biotecnologia; Brasil Fil: Coelho, Marcus. Prefeitura Municipal de Campinas; Brasil Fil: Ferreira da Costa, Andrea. Federal University of Rio de Janeiro. Museu Nacional. Department of Botany; Brasil Fil: Costa, Denise. Instituto de Pesquisas Jardim Botanico do Rio de Janeiro; Brasil Fil: Dalcin, Eduardo C. Rio de Janeiro Botanical Garden Research Institute; Brasil Fil: Labiak, Paulo. Universidade Federal do Parana; Brasil Fil: Cavalcante de Lima, Haroldo. Jardim Botânico do Rio de Janeiro; Brasil Fil: Lohmann, Lucia. Universidade de São Paulo; Brasil Fil: Maia, Leonor. Universidade Federal de Pernambuco; Brasil Fil: Mansano, Vidal de Freitas. Instituto de Pesquisas Jardim Botânico do Rio de Janeiro; Brasil. Jardim Botânico do Rio de Janeiro; Brasil Fil: Menezes, Mariângela. Federal University of Rio de Janeiro. Museu Nacional. Department of Botany; Brasil Fil: Morim, Marli. Instituto de Pesquisas Jardim Botânico do Rio de Janeiro; Brasil Fil: Moura, Carlos Wallace do Nascimento. Universidade Estadual de Feira de Santana. Department of Biological Science; Brasil Fil: Lughadha, Eimear NIck. Royal Botanic Gardens; Reino Unido Fil: Peralta, Denilson. Instituto de Pesquisas Ambientais; Brazil Fil: Prado, Jefferson. Instituto de Pesquisas Ambientais; Brasil Fil: Roque, Nádia. Universidade Federal da Bahia; Brasil Fil: Stehmann, Joao. Universidade Federal de Minas Gerais; Brasil Fil: da Silva Sylvestre, Lana. Universidade Federal do Rio de Janeiro; Brasil Fil: Trierveiler-Pereira, Larissa. Universidade Estadual de Maringá. Departamento de Análises Clínicas e Biomedicina; Brasil Fil: Walter, Bruno Machado Teles. EMBRAPA Cenargen Brasília; Brasil Fil: Zimbrão, Geraldo. Universidade Federal do Rio de Janeiro; Brasil Fil: Forzza, Rafaela C. Jardim Botânico do Rio de Janeiro; Brasil Fil: Morales, Matías. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Morón. Facultad de Agronomía y Ciencias Agroalimentarias; Argentina
Published: 2021

47. VegAndes: the vegetation database for the Latin American highlands

Author: Gwendolyn Peyre, Daniel Montesinos, Daniela Giraldo, Antonio Galán de Mera, Barbara Ruthsatz, Federico Luebert, Marcela Ontivero, Nicolas García, Miguel Álvarez, Rosa Isela Meneses, Pablo Lozano, Daniela León, Maximilian Weigend, Fabien Anthelme, Milagro Palma, Carolina Rodriguez, Universidad de los Andes [Bogota] (UNIANDES), Freie Universität Berlin, Universidad San Pablo CEU, Universität Trier, Universidad Central de Chile, Instituto Argentino de Investigaciones de las Zonas Áridas, Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET), Rheinische Friedrich-Wilhelms-Universität Bonn, Institut für Nutzpflanzenwissenschaften und Ressourcenschutz (INRES), Universidad Católica del Norte [Antofagasta], Universidad Estatal Amazonica, University of Tartu, Institut de Recherche pour le Développement (IRD), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), and Universidad de Panamá (UP)
Subjects: www.worldfloraonline.org/) database, phytosociology, Plant Science, TROPICOS (preferential source www.tropicos.org/) World Flora Online (secondary source www.worldfloraonline.org/) database flora highland Mesoamerica phytosociology plot data South America vegetation, World Flora Online (secondary source, Mesoamerica, South America, Agricultural and Biological Sciences (miscellaneous), flora, www.tropicos.org/), vegetation, TROPICOS (preferential source, plot data, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Ecology, Evolution, Behavior and Systematics, database, highland
Abstract: In the era of Big Data, Latin American countries and biomes remain underrepresented. To remediate this issue, promoting repositories for biodiversity data focused on Latin America is a main priority. VegAndes -Dpt the vegetation database for the Latin American highlands (GIVD: SA-00-005), is a novel dataset for georeferenced and standardized information on vascular pants in the region. The database compiles 5,340 vegetation plots sampled above the montane treeline and below the permanent snowline in 11 Latin American countries and spanning over seven decades. VegAndes currently encompasses 5,804 taxon names, corresponding to 3,858 accepted names, as well as 136 syntaxon names. The database is nested within a scientific consortium of Latin American experts on highland vegetation and piloted from the University of the Andes (Colombia). Because the VegAndes data can support multi-scale studies in botany, ecology and biogeography, the database makes an essential contribution to biodiversity research and management perspectives in Latin America. Taxonomic reference: TROPICOS (preferential source, www.tropicos.org/), World Flora Online (secondary source, www.worldfloraonline.org/).
Published: 2022

48. Virion-associated nucleic acid-based metagenomics: a decade of advances in molecular characterization of plant viruses

Author: Moubset, Oumaima, François, Sarah, Maclot, François, Palanga, Essowé, Julian, Charlotte, Claude, Lisa, Fernandez, Emmanuel, Rott, Philippe, Daugrois, Jean-Heinrich, Antoine-Lorquin, Aymeric, Bernardo, Pauline, Blouin, Arnaud G., Temple, Coline, Kraberger, Simona, Fontenele, Rafaela S, Harkins, Gordon William, Ma, Yuxin, Marais, Armelle, Candresse, Thierry, Ben Chehida, Sélim, Lefeuvre, Pierre, Lett, Jean-Michel, Varsani, Arvind, Massart, Sébastien, Ogliastro, Mylène, Martin, Darren Patrick, Filloux, Denis, Roumagnac, Philippe, Plant Health Institute of Montpellier (UMR PHIM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), University of Oxford, Gembloux Agro-Bio Tech [Gembloux], Université de Liège, Institut Togolais de Recherche Agronomique (ITRA), Diversité, Génomes & Interactions Microorganismes - Insectes [Montpellier] (DGIMI), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Enza Zaden, Agroscope, Arizona State University [Tempe] (ASU), University of the Western Cape (UWC), Biologie du fruit et pathologie (BFP), Université de Bordeaux (UB)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Peuplements végétaux et bioagresseurs en milieu tropical (UMR PVBMT), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de La Réunion (UR)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), University of Cape Town, European Union (ERDF, contract GURDT I2016-1731-0006632), Conseil Régional de La Réunion, project SEVIPLANT from Federal Public 17 Service, Public Health, Belgium, Grant Agreement no. RT 18/3, ANR-19-CE35-0008,PHYTOVIRUS,Mesure et cartographie de la richesse des virus des plante à l'échelle de l'écosytème(2019), and European Project: 813542,INEXTVIR
Subjects: Identification, Ecology, viruses, [SDV]Life Sciences [q-bio], Virion, Virus des végétaux, [SDV.BC.BC]Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC], Plants, génomique, Plant Viruses, [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology, Nucleic Acids, Virology, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, Metagenomics, Pathogen Detection, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Ecosystem, H20 - Maladies des plantes, Plant Diseases
Abstract: Over the last decade, viral metagenomic studies have resulted in the discovery of thousands of previously unknown viruses. These studies are likely to play a pivotal role in obtaining an accurate and robust understanding of how viruses affect the stability and productivity of ecosystems. Among the metagenomics-based approaches that have been developed since the beginning of the 21st century, shotgun metagenomics applied specifically to virion-associated nucleic acids (VANA) has been used to disentangle the diversity of the viral world. We summarize herein the results of 24 VANA-based studies, focusing on plant and insect samples conducted over the last decade (2010 to 2020). Collectively, viruses from 85 different families were reliably detected in these studies, including capsidless RNA viruses that replicate in fungi, oomycetes, and plants. Finally, strengths and weaknesses of the VANA approach are summarized and perspectives of applications in detection, epidemiological surveillance, environmental monitoring, and ecology of plant viruses are provided. [Formula: see text] Copyright © 2022 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
Published: 2022

49. Trellis-forming stems of a tropical liana Condylocarpon guianense (Apocynaceae): A plant-made safety net constructed by simple 'start-stop' development

Author: Soffiatti, Patricia, Fort, Emilien, Heinz, Christine, Rowe, Nick P, Universidade Federal do Paraná (UFPR), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM)
Subjects: Trellis, [SDE]Environmental Sciences, Lianas, Biomechanics, Plant Science, Anatomy, Development, Safety, Mechanical perturbation, Lianoid wood
Abstract: Tropical vines and lianas have evolved mechanisms to avoid mechanical damage during their climbing life histories. We explore the mechanical properties and stem development of a tropical climber that develops trellises in tropical rain forest canopies. We measured the young stems of Condylocarpon guianensis (Apocynaceae) that construct complex trellises via self-supporting shoots, attached stems, and unattached pendulous stems. The results suggest that, in this species, there is a size (stem diameter) and developmental threshold at which plant shoots will make the developmental transition from stiff young shoots to later flexible stem properties. Shoots that do not find a support remain stiff, becoming pendulous and retaining numerous leaves. The formation of a second TYPE II (lianoid) wood is triggered by attachment, guaranteeing increased flexibility of light-structured shoots that transition from self-supporting searchers to inter-connected net-like trellis components. The results suggest that this species shows a “hard-wired” development that limits self-supporting growth among the slender stems that make up a liana trellis. The strategy is linked to a stem-twining climbing mode and promotes a rapid transition to flexible trellis elements in cluttered densely branched tropical forest habitats. These are situations that are prone to mechanical perturbation via wind action, tree falls, and branch movements. The findings suggest that some twining lianas are mechanically fine-tuned to produce trellises in specific habitats. Trellis building is carried out by young shoots that can perform very different functions via subtle development changes to ensure a safe space occupation of the liana canopy.
Published: 2022

50. Honoring Sabin Berthelot: Nomenclature and botanical history of Berthelotia DC. (Asteraceae, Inuleae)

Author: Andre A. Naranjo, Rahul R. Pathirickal, Kanchi N. Gandhi, Piero G. Delprete, Riccardo M. Baldini, Arnoldo Santos-Guerra, Lázaro Sánchez-Pinto, Javier Francisco-Ortega, Florida International University [Miami] (FIU), Harvard University Herbaria, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Herbier de Guyane - IRD, Institut de Recherche pour le Développement (IRD [Guyane]), and Università degli Studi di Firenze = University of Florence (UniFI)
Subjects: Ecology, Nomenclature, India, Canary Islands, Plant Science, Asteraceae, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, Sabin Berthelot, Berthelotia, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Mexico, Ecology, Evolution, Behavior and Systematics, Sonora Desert, USA, Phylogeny
Abstract: International audience; The genus Berthelotia DC. (presently a synonym of the accepted name Pluchea Cass.), Asteraceae, Inuleae has been regarded as comprising two species, B. lanceolata DC. and B. sericea (Nutt.) Rydb. It honors the French naturalist Sabin Berthelot (1794-1880) for his contribution to the studies of the flora and fauna of the Canary Islands. Under the leadership of Philip B. Webb (1793-1854), Berthelot co-authored the most important work pertinent to the natural history of this archipelago: Histoire Naturelle des Îles Canaries. The nomenclature of Berthelotia and its associated names are revisited here. The holotype of Polypappus sericeus Nutt. (K000974653) was located, and lectotypes were assigned to B. lanceolata (G00450458) and B. lanceolata var. senegalensis DC. (G00452584). Phylogenetic analyses based on nucleotide sequences of the nrDNA ITS were conducted focusing on members of what is known as the Clade J of the Inuleae. A well-supported clade (100% P.P.) that we have labeled as "Clade I" was uncovered, and it is composed of three species that belong to the Pluchea indica Clade plus P. dioscoridis and P. ovalis; but this lineage did not support a previous hypothesis to include P. lanceolata. The two species of Berthelotia did not form a monophyletic group and seem to be distantly related; furthermore, none of these two taxa is sister to 208 Andre A. Naranjo et al. Tessaria, a South American genus that has been suggested to be a close relative to Berthelotia. Ethnobotanical uses of B. lanceolata and B. sericea are reviewed.
Published: 2022

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