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Global Changes Jeopardize the Trophic Carrying Capacity and Functioning of Estuarine Ecosystems

dc.rights.licenseopenen_US
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorCHEVILLOT, Xavier
hal.structure.identifierBiologie des Organismes et Ecosystèmes Aquatiques [BOREA]
hal.structure.identifierNormandie Université [NU]
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
dc.contributor.authorTECCHIO, Samuele
hal.structure.identifierBiologie des Organismes et Ecosystèmes Aquatiques [BOREA]
hal.structure.identifierNormandie Université [NU]
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
dc.contributor.authorCHAALALI, Aurélie
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorLASSALLE, Geraldine
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorSELLESLAGH, Jonathan
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorCASTELNAUD, Gérard
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorDAVID, Valerie
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBACHELET, Guy
hal.structure.identifierBiologie des Organismes et Ecosystèmes Aquatiques [BOREA]
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
hal.structure.identifierUniversité de Caen Normandie [UNICAEN]
hal.structure.identifierNormandie Université [NU]
dc.contributor.authorNIQUIL, Nathalie
hal.structure.identifierLaboratoire d'Océanologie Biologique d'Arcachon [LOB ARCACHON]
dc.contributor.authorSAUTOUR, Benoit
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorLOBRY, Jeremy
dc.date.accessioned2024-01-24T13:45:37Z
dc.date.available2024-01-24T13:45:37Z
dc.date.issued2019-04
dc.identifier.issn1432-9840en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/187480
dc.description.abstractEnAt the interface between terrestrial and marine biomes, estuaries display high ecological productivity and provide goods and services to humans. Associated with many ecological functions, they are nursery, refuge, and growing areas for many species fish. These ecological functions and services depend on both their ecological production and trophic carrying capacity and the durability of food web functioning. These transitional key habitats undergo both strong anthropogenic pressures and climatic influences that impact the structure and dynamics of estuarine biodiversity. In this context, we explore, here, three decades of the Gironde estuary ecosystem history to detect the food web's response to global changes-induced effect on biodiversity. At least two Ecological Abrupt Shifts associated with deep modifications in the biodiversity at most trophic levels have been documented for this particular ecosystem. Three food web models were thus calibrated, one for each of the three periods discriminated by the two shifts that occurred at the end of the 1980s and the beginning of the 2000s. Results highlighted that the ecotrophic efficiency estimate for subtidal macrofauna and shrimps reached the maximum possible values during the last period. This could mean that the Gironde estuary fully reached its trophic carrying capacity due to a food limitation especially for benthos demersal fish. We also observed a significant decrease in some food web indicators (such as Average Mutual Information, System Omnivory Index, and Average Path Length) usually associated with ecosystem stress, suggesting a significant impact of global change on the Gironde estuary ecosystem health and questioning the sustainability of the ecological functions associated with this ecosystem.
dc.language.isoENen_US
dc.title.enGlobal Changes Jeopardize the Trophic Carrying Capacity and Functioning of Estuarine Ecosystems
dc.typeArticle de revueen_US
dc.identifier.doi10.1007/s10021-018-0282-9en_US
dc.subject.halSciences de l'environnementen_US
dc.subject.halSciences de l'environnement/Biodiversité et Ecologieen_US
dc.subject.halSciences de l'environnement/Environnement et Sociétéen_US
dc.subject.halSciences de l'environnement/Milieux et Changements globauxen_US
bordeaux.journalEcosystemsen_US
bordeaux.page473-495en_US
bordeaux.volume22en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue3en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamECOBIOCen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-02154192
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
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