7 results on '"Guizien, Katell"'
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2. Sink or swim ? Larval size and migration potential in three sympatric Mediterranean octocorals
- Author
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Guizien, Katell, Viladrich-Canudas, N, Martínez-Quintana, Á, Bramanti, L, Laboratoire d'Ecogéochimie des environnements benthiques (LECOB), 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), Universitat Autònoma de Barcelona [Barcelona] (UAB), and Institut de Ciències del Mar, ICM-CSIC
- Subjects
larval motility behavior ,Gorgonians ,Marine connectivity ,Larval size ,Pelagic Larval Duration ,Larval traits ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,Larval dispersal ,Migration potential - Published
- 2020
3. Oscillating grid mesocosm for studying oxygen dynamics under controlled unsteady turbulence
- Author
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Lucas, Sabrina, Moulin, Frédéric Y., Guizien, Katell, Laboratoire d'Ecogéochimie des environnements benthiques (LECOB), Observatoire océanologique de Banyuls (OOB), 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), Institut de mécanique des fluides de Toulouse (IMFT), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Sorbonne Université (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
- Subjects
Turbulence ,Dioxygen profiles ,Mécanique des fluides ,Muds ,turbulence ,studying oxygen ,dynamics ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,mesocosm ,[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography - Abstract
In shallow environments, common unsteady flows, such as tides, waves or wind-driven currents modulate the diffusive boundary layer thickness that controls the exchange of electron acceptors for mineralization and oxidation processes in surficial sediment. This study demonstrated the ability of an oscillating grid mesocosm to (1) produce homogenous turbulence at the sediment-water interface of multiple sediment cores (between-core variability
- Published
- 2016
4. Larval buoyancy matters: sinking changes larval transport predictions among Paramuricea clavata populations
- Author
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Roberta Sciascia, Katell Guizien, Mariana Padrón, Lorenzo Bramanti, Marcello Magaldi, Istituto di Scienze Marine [La Spezia] (CNR-ISMAR-SP), Istituto di Science Marine (ISMAR ), Consiglio Nazionale delle Ricerche (CNR)-Consiglio Nazionale delle Ricerche (CNR), Laboratoire d'Ecogéochimie des environnements benthiques (LECOB), 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), Istituto di Scienze Marine [Venezia] (ISMAR-CNR), and Guizien, Katell
- Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology - Published
- 2020
5. Harnessing positive species interactions as a tool against climate-driven loss of coastal biodiversity
- Author
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Richard Michalet, Tjeerd J. Bouma, Celia Olabarria, Martin Wahl, Stuart R. Jenkins, Gabriele Procaccini, Christos Arvanitidis, Ester A. Serrão, Ljiljana Iveša, Britas Klemens Eriksson, Lisandro Benedetti-Cecchi, Katell Guizien, Francisco Arenas, Dominique Davoult, Tasman P. Crowe, Ana M. Queirós, Laura Airoldi, Fabio Bulleri, Consorzio Nazionale Interuniversitario per le Scienze del Mare [Rome, Italie] (CoNISma), Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Interdisciplinary Centre of Marine and Environmental Research [Matosinhos, Portugal] (CIIMAR), Universidade do Porto, Hellenic Center for Marine Research (HCMR), Royal Netherlands Institute for Sea Research (NIOZ), Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecogéochimie des environnements benthiques (LECOB), Observatoire océanologique de Banyuls (OOB), 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), The Laboratory (Marine Biological Association of the United Kingdom), Marine Biological Association of the United Kingdom (MBA), Biodiversité, Gènes & Communautés (BioGeCo), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB), Facultade de Ciencias del Mar, Universidade de Vigo, Stazione Zoologica Anton Dohrn (SZN), Centro Interdisciplinar de Investigaçao Marinha e Ambiental (CIMAR), Universidade do Algarve (UAlg), Department of Biology [Pisa], University of Pisa - Università di Pisa, Eriksson group, Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISma), Università di Bologna [Bologna] (UNIBO), CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Universidade do Porto [Porto], Marine Biological Association of the United Kingdom, Universidate de Vigo, Stazione Zoologica Napoli, Bulleri, Fabio, Eriksson, Britas Klemen, Queirós, Ana, Airoldi, Laura, Arenas, Francisco, Arvanitidis, Christo, Bouma, Tjeerd J., Crowe, Tasman P., Davoult, Dominique, Guizien, Katell, Iveša, Ljiljana, Jenkins, Stuart R., Michalet, Richard, Olabarria, Celia, Procaccini, Gabriele, Serrão, Ester A., Wahl, Martin, and Benedetti-Cecchi, Lisandro
- Subjects
Genetics and Molecular Biology (all) ,0106 biological sciences ,0301 basic medicine ,Immunology and Microbiology (all) ,Plant-Communities ,Species distribution ,Biodiversity ,2510.04 Botánica Marina ,Neuroscience (all) ,Biochemistry ,Agricultural and Biological Sciences (all) ,01 natural sciences ,Biotic Interactions ,Local Adaptation ,Biology (General) ,ComputingMilieux_MISCELLANEOUS ,media_common ,2401.19 Zoología Marina ,Ocean Acidification ,General Neuroscience ,2417.13 Ecología Vegetal ,Environmental resource management ,Adaptation, Physiological ,Refugium ,Psychological resilience ,General Agricultural and Biological Sciences ,Holothuria-Scabra ,QH301-705.5 ,Climate Change ,media_common.quotation_subject ,Climate change ,Biology ,Physical Stress ,010603 evolutionary biology ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,Species Specificity ,Conservation science ,Ecosystem ,14. Life underwater ,Range Shifts ,Biochemistry, Genetics and Molecular Biology (all) ,General Immunology and Microbiology ,business.industry ,Ecosystem Engineers ,fungi ,15. Life on land ,Future climate ,Physical stress ,030104 developmental biology ,13. Climate action ,Sea-Cucumbers ,Facilitation Research ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,business - Abstract
Habitat-forming species sustain biodiversity and ecosystem functioning in harsh environments through the amelioration of physical stress. Nonetheless, their role in shaping patterns of species distribution under future climate scenarios is generally overlooked. Focusing on coastal systems, we assess how habitat-forming species can influence the ability of stress-sensitive species to exhibit plastic responses, adapt to novel environmental conditions, or track suitable climates. Here, we argue that habitat-former populations could be managed as a nature-based solution against climate-driven loss of biodiversity. Drawing from different ecological and biological disciplines, we identify a series of actions to sustain the resilience of marine habitat-forming species to climate change, as well as their effectiveness and reliability in rescuing stress-sensitive species from increasingly adverse environmental conditions. EuroMarine - European Marine Research Network
- Published
- 2018
6. Passive larval transport explains recent gene flow in a Mediterranean gorgonian
- Author
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Katell Guizien, Sandra Baksay, Federica Costantini, Mariana Padrón, Lorenzo Bramanti, Centro Interdipartimentale di Ricerca per le Scienze Ambientali and Dipartimento di Biologia (CIRSA), Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire d'excellence 'CORAIL', Laboratoire d'Ecogéochimie des environnements benthiques (LECOB), Observatoire océanologique de Banyuls (OOB), 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), Padrón, Mariana, Costantini, Federica, Baksay, Sandra, Bramanti, Lorenzo, and Guizien, Katell
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0106 biological sciences ,Range (biology) ,ved/biology.organism_classification_rank.species ,Population ,Biology ,Aquatic Science ,010603 evolutionary biology ,01 natural sciences ,Coalescent theory ,Mediterranean sea ,Eunicella singularis ,14. Life underwater ,education ,Gulf of Lion ,ComputingMilieux_MISCELLANEOUS ,Marine Protected Area ,Seascape ,education.field_of_study ,Pelagic larval duration ,Ecology ,ved/biology ,010604 marine biology & hydrobiology ,fungi ,Marine connectivity ,[SDE]Environmental Sciences ,Biological dispersal ,Marine protected area ,Hydrodynamic model ,Genetic structure ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology - Abstract
Understanding the patterns of connectivity is required by the Strategic Plan for Biodiversity 2011–2020 and will be used to guide the extension of marine protection measures. Despite the increasing accuracy of ocean circulation modelling, the capacity to model the population connectivity of sessile benthic species with dispersal larval stages can be limited due to the potential effect of filters acting before or after dispersal, which modulates offspring release or settlement, respectively. We applied an interdisciplinary approach that combined demographic surveys, genetic methods (assignment tests and coalescent-based analyses) and larval transport simulations to test the relative importance of demographics and ocean currents in shaping the recent patterns of gene flow among populations of a Mediterranean gorgonian (Eunicella singularis) in a fragmented rocky habitat (Gulf of Lion, NW Mediterranean Sea). We show that larval transport is a dominant driver of recent gene flow among the populations, and significant correlations were found between recent gene flow and larval transport during an average single dispersal event when the pelagic larval durations (PLDs) ranged from 7 to 14 d. Our results suggest that PLDs that efficiently connect populations distributed over a fragmented habitat are filtered by the habitat layout within the species competency period. Moreover, a PLD ranging from 7 to 14 d is sufficient to connect the fragmented rocky substrate of the Gulf of Lion. The rocky areas located in the centre of the Gulf of Lion, which are currently not protected, were identified as essential hubs for the distribution of migrants in the region. We encourage the use of a range of PLDs instead of a single value when estimating larval transport with biophysical models to identify potential connectivity patterns among a network of Marine Protected Areas or even solely a seascape.
- Published
- 2018
7. Genetic connectivity supports recovery of gorgonian populations affected by climate change
- Author
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Mariana Padrón, Marco Abbiati, Lorenzo Bramanti, Katell Guizien, Federica Costantini, Padrón, Mariana, Costantini, Federica, Bramanti, Lorenzo, Guizien, Katell, Abbiati, Marco, Laboratoire d'Ecogéochimie des environnements benthiques (LECOB), 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), Centro Interdipartimentale di Ricerca per le Scienze Ambientali and Dipartimento di Biologia (CIRSA), Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), University of Bologna, and Consorzio Nazionale Interuniversitario per le Scienze del Mare [Rome, Italie] (CoNISma)
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0106 biological sciences ,Range (biology) ,ved/biology.organism_classification_rank.species ,Population ,invertebrate ,Metapopulation ,coastal ,Biology ,Aquatic Science ,bentho ,010603 evolutionary biology ,01 natural sciences ,[SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems ,genetics ,14. Life underwater ,education ,dispersal ,coral ,ComputingMilieux_MISCELLANEOUS ,Nature and Landscape Conservation ,disturbance ,education.field_of_study ,Habitat fragmentation ,[SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE] ,Ecology ,ved/biology ,010604 marine biology & hydrobiology ,fungi ,benthos ,invertebrates ,[SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology ,[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics ,Population bottleneck ,climate change ,Genetic structure ,[SDE]Environmental Sciences ,Biological dispersal ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,[SDV.EE.BIO]Life Sciences [q-bio]/Ecology, environment/Bioclimatology ,genetic ,Paramuricea clavata - Abstract
International audience; Climate‐induced threats are increasingly affecting marine populations worldwide. In the last few decades, several gorgonian species have been affected by mass mortality events in the north‐west Mediterranean, putatively linked to local sea temperature increases during heatwaves. For many benthic sessile species, recovery after disturbances depends upon larval supply shaping the connections among populations.In the Ligurian Sea, genetic analyses showed that some Paramuricea clavata populations recovered after mass mortality events; however, the patterns of connectivity, and the potential role of migration in supporting the recovery of the populations of P. clavata, across its distribution range within the Ligurian Sea are still unknown.In this study, the population genetic structure and migration patterns of P. clavata populations have been analysed across seven sites in the Ligurian Sea, some of which have been affected by mass mortality events.Evidence of a population bottleneck was found in most of the populations studied. Significant genetic differentiation was found among P. clavata populations, reflecting habitat fragmentation at a regional scale, except for two populations found 20 km apart. Continuing gene flow between distant populations was also revealed. Empirical data suggest that gene flow among populations may have contributed to support their recovery from mass mortality events.The study identified populations in the central part of the Ligurian Sea that can be strategic for the regional persistence of the species. These findings highlight that the preservation of key populations could maintain connectivity and gene flow in the metapopulation, and increase the resilience of the species.
- Published
- 2018
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