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1. Use of lichen species for air pollution biomonitoring: Case of Dar-Chichou forest (Cap-Bon, North-East Tunisia)

Author

Sonia Dhaouadi, Noureddine Khalloufi, Khaoula Ayati, Nesrine Ayeb, and Mustapha Béjaoui

Subjects
Air quality, Biomonitoring, MTE, Biomarkers, Lichen species, Environmental sciences, GE1-350
Abstract

In the present work, we investigated the bio-uptake of 4 MTE (Ni, Cd, Pb, Zn) in the thalli of some species of lichens near a road crossing the Dar-Chichou forest (NE- Tunisia). In the absence of previous studies on the lichenic heritage of this forest, the objectives of this work are.first of all to identify for the first time the lichen species present in the forest, to determine the impact of this road pollution on certain physiological parameters of these pioneer species, such as the chlorophyll a and b levels, the content of carotenoids, theperoxidation (H2O2) and the ipoperoxidation (MDA) and on the other hand, to show the bioindicatory and bioaccumulative importance of these lichens in front of certain trace metals (Pb, Cd, Zn and Ni). In this study, 23 lichen species with different thallus was detected. The amounts of MTE in thalli of several lichen species were determined using the flame atomic absorption spectrometry. Significant positive correlations between the production of H2O2 and the MDA content and on the MTE content (Ni, Pb, Zn) indicating a defense against oxidative stress. The presence of Evernia prunastri, Xanthoria parietina, Physcia adscendens and Cladonia stellaris, made it possible to classify the air quality of the Dar-Chichou Forest. P. adscendens present the weakest reaction against oxidative stress (H2O2) and seemed the most resistant compared to the two other species. This study was conducted as part of a comprehensive approach combining chemical and biological parameters to assess the effect of road traffic on air quality. It provides the first database in Tunisia referring to MTE contamination and their probable biological effects. This study fills a necessary gap in the literature.

Published
2022
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2. Transdisciplinary Bioblitz: Rapid biotic and abiotic inventory allows studying environmental changes over 60 years at the Biological Field Station of Paimpont (Brittany, France) and opens new interdisciplinary research opportunities

Author

Annegret Nicolai, Muriel Guernion, Sarah Guillocheau, Kevin Hoeffner, Pascaline Le Gouar, Nelly Ménard, Christophe Piscart, Dominique Vallet, Morgane Hervé, Elora Benezeth, Hughes Chedanne, Jérémie Blémus, Philippe Vernon, Daniel Cylly, Hoël Hotte, Grégoire Loïs, Barbara Mai, Grégoire Perez, Tiphaine Ouisse, Cécile Monard, Claudia Wiegand, Jean-Pierre Caudal, Alain Butet, Maxime Dahirel, Lou Barbe, Manon Balbi, Valérie Briand, Myriam Bormans, Maryvonne Charrier, Guillaume Bouger, Vincent Jung, Cécile Le Lann, Alexandrine Pannard, Julien Petillon, Yann Rantier, Dominique Marguerie, Kevin Tougeron, Pierre Devogel, Sébastien Dugravot, Thomas Dubos, Maël Garrin, Mathurin Carnet, Clément Gouraud, Audrey Chambet, Joël Esnault, Maxime Poupelin, Erik Welk, Astrid Bütof, Glenn Dubois, Guillaume Humbert, Odile Marie-Réau, Olivier Norvez, Gaëlle Richard, Benoît Froger, Céline Rochais, Martin Potthoff, Khaoula Ayati, Alain Bellido, Alain Rissel, Mathieu Santonja, Jacques-Olivier Farcy, Eric Collias, Lina Sene, Daniel Cluzeau, and Régis Supper

Subjects
ATBI, citizen science, terrestrial, land use, aqua, Biology (General), QH301-705.5
Published
2020
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3. Cerrorchestia taboukeli sp. nov., a new terrestrial amphipod (Amphipoda, Talitridae) from Martinique Island

Author

Christoph Piscart, Khaoula Ayati, and Mathieu Coulis

Subjects
Caribbean island, Lesser Antilles, tropical rainforest, terrestrial crustacean, new species, Zoology, QL1-991, Botany, QK1-989
Abstract

During recent investigations on the terrestrial invertebrates of the tropical rainforest on Martinique Island (Pitons du Carbet), specimens of a new species of the terrestrial amphipod genus Cerrorchestia Lindeman, 1990, C. taboukeli sp. nov., were collected by means of different quantitative and non-quantitative methods (hand collection and Tullgren extraction) in the forest floor. The new species can be easily distinguished from the only other species of the genus, C. hyloraina Lindeman, 1990, by gnathopod 2 (carpus short, palm longer than wide), pereopod 4 dactylus with a denticulate patch, pereopod 5 basis ovate with a deep posterodistal lobe reaching the distal end of the ischium, pleopod 3 ramus with more than six articles. Cerrorchestia tabouleki sp. nov. is the first forest-hopper discovered in the Lesser Antilles, raising the question of island colonization by terrestrial amphipods. Ecological data and a key to terrestrial Talitridae of Central America and the Caribbean islands are provided.

Published
2019
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4. Conservation of freshwater biodiversity in Tunisia in a climate change context: combining amphipod distribution data and molecular analyses to improve priorities

Author

Khaoula Ayati, Kamil Hupało, Sonia Dhaouadi, Tomasz Rewicz, Michal Grabowski, Christophe Piscart, Université de Carthage - University of Carthage, Universität Duisburg-Essen = University of Duisburg-Essen [Essen], University of Lódź, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), and This study was supported by the University of Carthage (Tunisia) and the fund of the 'Laboratoire de Biosurveillance de l’Environnement'. KH was supported by the Polish National Science Center (projects no. 2015/17/N/NZ8/01628, 2018/28/T/NZ8/00022) and the German Research Foundation (DFG) (project LE 2323/10–1). MG, TR, CP were supported by the statutory funds from their Universities.

Subjects
Ecology, Crustacea, Maghreb, Global warming, Africa, Flow intermittency, Freshwater biodiversity, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Biologie, Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation
Abstract

International audience; The exceptional diversity of freshwater fauna of the Mediterranean Basin currently faces a crisis in which climate change combined with overexploitation of freshwaters heavily threatens the local fauna. In this context, it is urgent to define conservation priorities on how to best protect freshwater biodiversity. One of the main limits to define such actions remains the lack of knowledge in many countries. In this study, we test the usefulness of molecular data (COI gene) combined with morphological identification to better predict the pattern of biological diversity and threats of climate change on freshwater biodiversity. We focused our study on the freshwater amphipods as model organisms in order to define conservation strategies in Tunisia, one of the most threatened countries. Our results confirmed that amphipods diversity is largely underestimated with nine species identified by their morphology and 33-39 species assigned depending on delimited with the most parsimonious molecular delimitation method. The distribution of amphipods is mainly restricted to the northern part of Tunisia and seems to be positively correlated with precipitation and negatively correlated with thermal amplitudes and precipitation fluctuations. These environmental factors are sensitive to climate change and confirm that conservation strategies need to be redefined and adjusted in the face of future climate predictions. Moreover, the total diversity and spatial distribution patterns provided by molecular methods seem to be more detailed and accurate than results based on morphology alone and nicely complement traditional species assignment.

Published
2023
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5. A New Species of Freshwater Amphipods Echinogammarus (Amphipoda, Gammaridae) from Algeria

Author

Christophe Piscart, Ramzi Hadjab, Khaoula Ayati, Université Larbi-Ben-Mhidi [Oum-El-Bouaghi] (OEB), and Université de Carthage - University of Carthage

Subjects
0106 biological sciences, [SDV.EE]Life Sciences [q-bio]/Ecology, environment, Amphipoda, biology, 010604 marine biology & hydrobiology, stream, 010607 zoology, Zoology, Seta, [SDV.BID]Life Sciences [q-bio]/Biodiversity, crustacea, biology.organism_classification, 01 natural sciences, Crustacean, 6. Clean water, fresh water, Fresh water, Northern Africa, Gammaridae
Abstract

International audience; Several samples of amphipods were obtained from six stations in the upper reach of the Youkous Stream, near Hammamet. This study describes a new species, Echinogammarus monodi n.sp., differing from other Echinogammarus species in the length of the first antenna, the setation of the third article of the mandibular palp (bearing three rows of A-setae and two rows of B-setae), the merus and carpus of pereopods 5 with long setae only, and the exopodite of uropod 3 with numerous groups of long simple setae. A full description of the new species and information about its distribution is given in this paper.

Published
2020
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6. Two new species of gammarid amphipods from Tunisian fresh waters (Amphipoda, Gammaridae)

Author

Christophe Piscart, Sonia Dhaouadi, Khaoula Ayati, Ezzeddine Mahmoudi, Université de Carthage - University of Carthage, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
new species, 0106 biological sciences, Amphipoda, biology, 010604 marine biology & hydrobiology, Zoology, Echinogammarus, Aquatic Science, North Africa, biology.organism_classification, 010603 evolutionary biology, 01 natural sciences, Geography, Animal Science and Zoology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Gammaridae
Abstract

This study describes two new species of the genus Echinogammarus from springs and rivers located in northern Tunisia. These two species are related to the Echinogammarus simoni-group, but differ from those species in terms of several characteristics, such as a 3-articulated accessory flagellum of the first antennae, the lack of a dense setation on the second antennae, the presence of lateral setae on the telson and the lack of plumose setae on uropod 3. The first species, Echinogammarus carthaginiensis n. sp., is easily distinguishable from the second, Echinogammarus tunetanus n. sp., by the setation on the mandibular palp and gnathopods and the relative length of uropods 1 and 3. A full description of the two new species and information about their distribution is given in this paper.

Published
2018
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7. Transdisciplinary Bioblitz: Rapid biotic and abiotic inventory allows studying environmental changes over 60 years at the Biological Field Station of Paimpont (Brittany, France) and opens new interdisciplinary research opportunities

Author

Jérémie Blémus, Cécile Monard, Régis Supper, Elora Benezeth, Alain Rissel, Guillaume Humbert, Philippe Vernon, Julien Pétillon, Myriam Bormans, Astrid Bütof, Glenn F Dubois, Maël Garrin, Eric Collias, Annegret Nicolai, Hughes Chedanne, Martin Potthoff, Hoël Hotte, Claudia Wiegand, Olivier Norvez, Barbara Mai, Pascaline Le Gouar, Cécile Le Lann, Christophe Piscart, Benoît Froger, Daniel Cluzeau, Grégoire Perez, Thomas Dubos, Tiphaine Ouisse, Sébastien Dugravot, Morgane Hervé, Maxime Poupelin, Dominique Vallet, Sarah Guillocheau, Grégoire Loïs, Kévin Tougeron, Guillaume Bouger, Alexandrine Pannard, Odile Marie-Réau, Gaëlle Richard, Pierre Devogel, Céline Rochais, Erik Welk, Manon Balbi, Lou Barbe, Jean-Pierre Caudal, Yann Rantier, Joël Esnault, Vincent Jung, Muriel Guernion, Lina Sene, Mathurin Carnet, Alain Bellido, Maryvonne Charrier, Kevin Hoeffner, Dominique Marguerie, Daniel Cylly, Valérie Briand, Mathieu Santonja, Audrey Chambet, Clément Gouraud, Jacques-Olivier Farcy, Maxime Dahirel, Alain Butet, Khaoula Ayati, Nelly Ménard, Station Biologique de Paimpont CNRS UMR 6653 (OSUR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Centre de recherche en économie et management (CREM), Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU), Centre d'Ecologie et des Sciences de la COnservation (CESCO), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), UMS 3343 (OSU), Observatoire des Sciences de l'Univers de Rennes (OSUR), Géoarchitecture : Territoires, Urbanisation, Biodiversité, Environnement, Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université de Brest (UBO), Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École des Ponts ParisTech (ENPC)-École polytechnique (X)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre de Recherches Historiques de l'Ouest (CERHIO), Le Mans Université (UM)-Université d'Angers (UA)-Université de Bretagne Sud (UBS)-Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), GRoupe d'ÉTude des Invertébrés Armoricains (GRETIA), Commission de culture scientifique et technique, Conservatoire Botanique National de Brest (CBN), SAD Paysage (SAD Paysage), AGROCAMPUS OUEST, 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 Recherche Agronomique (INRA), Martin-Luther-Universität Halle Wittenberg (MLU), Cercle Naturaliste des Etudiants Rennais (CNER), Université de Rennes (UNIV-RENNES), Bretagne Vivante - Société pour l'Etude et la Protection de la Nature en Bretagne (SEPNB), Ethologie animale et humaine (EthoS), Normandie Université (NU)-Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Georg-August-University [Göttingen], Université de Carthage - University of Carthage, Encyclopédie de Brocéliande, Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université de Rennes (UR)-Université de Brest (UBO), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Le Mans Université (UM)-Université d'Angers (UA)-Université de Bretagne Sud (UBS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Chercheur indépendant, Université Pierre et Marie Curie - Paris 6 - UFR de Médecine Pierre et Marie Curie (UPMC), Université Pierre et Marie Curie - Paris 6 (UPMC), Bretagne Vivante, Georg-August-University = Georg-August-Universität Göttingen, UCL - SST/ELI/ELIB - Biodiversity, Université de Brest (UBO)-Université de Rennes 1 (UR1), AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA), Normandie Université (NU)-Normandie Université (NU)-Université de Rennes 1 (UR1), and Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UMR237-Aix Marseille Université (AMU)-Avignon Université (AU)

Subjects
0106 biological sciences, 0301 basic medicine, Range (biology), photographical landscape observation, Biodiversity & Conservation, Biodiversity, physico-chemical parameters, 010603 evolutionary biology, 01 natural sciences, soil biota, 03 medical and health sciences, historical biodiversity data, terrestrial, multi-trophic sampling, citizen science, Ecology & Environmental sciences, Citizen science, Animalia, Protozoa, Plantae, lcsh:QH301-705.5, Ecology, Evolution, Behavior and Systematics, Aquatic biology, Abiotic component, Chromista, Bacteria, Ecology, Land use, long-term survey, Fungi, land use, Plant community, aquatic, 15. Life on land, Data Paper (Biosciences), plant communities, Europe, 030104 developmental biology, Geography, Habitat, lcsh:Biology (General), ATBI, 13. Climate action, BioBlitz, multi-habitat cartography, aqua, [SDE.BE]Environmental Sciences/Biodiversity and Ecology
Abstract

International audience; Background - The Biological Field Station of Paimpont (Station Biologique de Paimpont, SBP), owned by the University of Rennes and located in the Brocéliande Forest of Brittany (France), has been hosting student scientific research and field trips during the last 60 years. The study area of the SBP is a landscape mosaic of 17 ha composed of gorse moors, forests, prairies, ponds and creeks. Land use has evolved over time. Historical surveys by students and researchers focused on insects and birds. With this study, we aimed to increase the range of taxa observations, document changes in species composition and landscape and provide a basis for interdisciplinary research perspectives. We gathered historical data, implemented an all-taxon biodiversity inventory (ATBI) in different habitats of the SBP study area, measured abiotic factors in the air, water and soil and performed a photographical landscape observation during the BioBlitz held in July 2017. New information - During the 24 h BioBlitz, organised by the SBP and the EcoBio lab from the University of Rennes and the French National Center of Scientific Research (CNRS), different habitats were individually sampled. Seventy-seven experts, accompanied by 120 citizens and 12 young people participating in the European Volunteer Service, observed, identified and databased 660 species covering 5 kingdoms, 8 phyla, 21 classes, 90 orders and 247 families. In total, there were 1819 occurrences including records identified to higher taxon ranks, thereby adding one more kingdom and four more phyla. Historical data collection resulted in 1176 species and 4270 occurrences databased. We also recorded 13 climatic parameters, 10 soil parameters and 18 water parameters during the BioBlitz. Current habitats were mapped and socio-ecological landscape changes were assessed with a diachronic approach using 32 historical photographs and historical maps. The coupling of historical biodiversity data with new biotic and abiotic data and a photographic comparison of landscape changes allows an integrative understanding of how the SBP changed from agriculturally-used land to a managed natural area within the last 60 years. Hence, this BioBlitz represents an important holistic sampling of biodiversity for studies on trophic webs or on trophic interactions or on very diverse, but connected, habitats. The integration of social, biotic and abiotic data opens innovative research opportunities on the evolution of socio-ecosystems and landscapes.

Published
2020
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8. Cerrorchestia taboukeli sp. nov., a new terrestrial amphipod (Amphipoda, Talitridae) from Martinique Island

Author

Christophe Piscart, Mathieu Coulis, Khaoula Ayati, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Lesser Antilles, Amphipoda, Arthropoda, 020209 energy, location.country, 0211 other engineering and technologies, Talitridae, 02 engineering and technology, terrestrial crustacean, location, Genus, 021105 building & construction, 0202 electrical engineering, electronic engineering, information engineering, Animalia, Malacostraca, Ecology, Evolution, Behavior and Systematics, Taxonomy, new species, Caribbean island, biology, Ecology, Botany, Biodiversity, biology.organism_classification, Geography, QL1-991, Dactylus, Martinique island, QK1-989, [SDE]Environmental Sciences, Key (lock), tropical rainforest, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Zoology, Tropical rainforest
Abstract

International audience; During recent investigations on the terrestrial invertebrates of the tropical rainforest on Martinique Island (Pitons du Carbet), specimens of a new species of the terrestrial amphipod genus Cerrorchestia Lindeman, 1990, C. taboukeli sp. nov., were collected by means of different quantitative and non-quantitative methods (hand collection and Tullgren extraction) in the forest floor. The new species can be easily distinguished from the only other species of the genus, C. hyloraina Lindeman, 1990, by gnathopod 2 (carpus short, palm longer than wide), pereopod 4 dactylus with a denticulate patch, pereopod 5 basis ovate with a deep posterodistal lobe reaching the distal end of the ischium, pleopod 3 ramus with more than six articles. Cerrorchestia tabouleki sp. nov. is the first forest-hopper discovered in the Lesser Antilles, raising the question of island colonization by terrestrial amphipods. Ecological data and a key to terrestrial Talitridae of Central America and the Caribbean islands are provided.

Published
2019
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9. Origin, diversity and distribution of freshwater epigean amphipods in Maghreb

Author

Sonia Dhaouadi, Ramzi Hadjab, Christophe Piscart, Khaoula Ayati, Hichem Khammar, Ezzeddine Mahmoudi, Université de Carthage - University of Carthage, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), University of Carthage (Tunisia), University d'Oum El Bouaghi (Algeria), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
0106 biological sciences, Amphipoda, Fauna, media_common.quotation_subject, Biodiversity, Distribution (economics), Aquatic Science, 010603 evolutionary biology, 01 natural sciences, 14. Life underwater, Northern Africa, Endemism, freshwater, ComputingMilieux_MISCELLANEOUS, media_common, biodiversity, biology, Ecology, business.industry, 010604 marine biology & hydrobiology, biology.organism_classification, Crustacean, Geography, biogeographical distribution, Epigeal, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, business, Diversity (politics)
Abstract

Northern Africa, although one of the world hotpots of biodiversity, is poorly studied and the freshwater fauna living in this part of the world remains partly unknown. This study focused on the diversity and distribution of the poorly known epigean freshwater amphipods. We performed an exhaustive analysis of the literature on this group of crustaceans and sampled 106 additional localities from the eastern part of Algeria and in Tunisia. Our results showed an important diversity with 25 species (including the presence of at least three new undescribed species) and a very high rate of endemism with 52% of species occurring at on only 1 or 2 sites. We also highlighted a very low diversity on each site with only 4.4% of sites harboring more than 1 species. The comparative distribution of certain species between Europe and Maghreb and also between the western and eastern part of Northern Africa allow us to discuss some hypotheses about the factors underlying this endemism and the biogeographical origin of species. However, our study revealed a general lack of knowledge in the region, especially in the South of Morocco and Algeria. Hence, more information would be needed to propose adapted conservation strategies of freshwater fauna in Maghreb.

Published
2019
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10. Origin, diversity and distribution of freshwater epigean amphipods in Maghreb.

Author

Khaoula, Ayati, Ramzi, Hadjab, Hichem, Khammar, Sonia, Dhaouadi, Christophe, Piscart, and Ezzeddine, Mahmoudi

Subjects
*AMPHIPODA, *FRESHWATER animals, *BIOLOGICAL evolution, *SPECIES diversity, *FRESH water, *SPECIES distribution
Abstract

Northern Africa, although one of the world hotpots of biodiversity, is poorly studied and the freshwater fauna living in this part of the world remains partly unknown. This study focused on the diversity and distribution of the poorly known epigean freshwater amphipods. We performed an exhaustive analysis of the literature on this group of crustaceans and sampled 106 additional localities from the eastern part of Algeria and in Tunisia. Our results showed an important diversity with 25 species (including the presence of at least three new undescribed species) and a very high rate of endemism with 52% of species occurring at on only 1 or 2 sites. We also highlighted a very low diversity on each site with only 4.4% of sites harboring more than 1 species. The comparative distribution of certain species between Europe and Maghreb and also between the western and eastern part of Northern Africa allow us to discuss some hypotheses about the factors underlying this endemism and the biogeographical origin of species. However, our study revealed a general lack of knowledge in the region, especially in the South of Morocco and Algeria. Hence, more information would be needed to propose adapted conservation strategies of freshwater fauna in Maghreb. Our results showed theimportant diversity of Maghreb despite the scarcity of fresh waters and the weak knowledge on this area. We highlighted a very high rate of endemism with 52% of species occurring at on only 1 or 2 sites. We found enough data to discuss some hypotheses about the factors underlying this endemism and the biogeographical origin of species. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

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