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Multispecies integrated population model reveals bottom‐up dynamics in a seabird predator–prey system

hal.structure.identifierCentre d’Ecologie Fonctionnelle et Evolutive [CEFE]
dc.contributor.authorQUÉROUÉ, Maud
hal.structure.identifierCentre d'Études Biologiques de Chizé - UMR 7372 [CEBC]
dc.contributor.authorBARBRAUD, Christophe
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorBARRAQUAND, Frédéric
hal.structure.identifierWilliams College [Williamstown]
dc.contributor.authorTUREK, Daniel
hal.structure.identifierCentre d'Études Biologiques de Chizé - UMR 7372 [CEBC]
dc.contributor.authorDELORD, Karine
hal.structure.identifierSimon Fraser University = Université Simon Fraser [SFU.ca]
dc.contributor.authorPACOUREAU, Nathan
hal.structure.identifierCentre d’Ecologie Fonctionnelle et Evolutive [CEFE]
dc.contributor.authorGIMENEZ, Olivier
dc.date.accessioned2024-04-04T02:45:16Z
dc.date.available2024-04-04T02:45:16Z
dc.date.issued2021-08
dc.identifier.issn0012-9615
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/191452
dc.description.abstractEnAssessing the effects of climate and interspecific relationships on communities is challenging because of the complex interplay between species population dynamics, their interactions, and the need to integrate information across several biological levels (individuals – populations – communities). Usually used to quantify single‐species demography, integrated population models (IPMs) have recently been extended to communities. These models allow fitting multispecies matrix models to data from multiple sources while simultaneously accounting for uncertainty in each data source. We used multispecies IPMs accommodating climatic variables to quantify the relative contribution of climate vs. interspecific interactions on demographic parameters, such as survival and breeding success, in the dynamics of a predator–prey system. We considered a stage‐structured predator–prey system combining 22 years of capture–recapture data and population counts of two seabirds, the Brown Skua (Catharacta lönnbergi) and its main prey the Blue Petrel (Halobaena caerulea), both breeding on the Kerguelen Islands in the Southern Ocean. Our results showed that climate and predator–prey interactions drive the demography of skuas and petrels in different ways. The breeding success of skuas appeared to be largely driven by the number of petrels and to a lesser extent by intraspecific density‐dependence. In contrast, there was no evidence of predation effects on the demographic parameters of petrels, which were affected by oceanographic factors. We conclude that bottom‐up mechanisms are the main drivers of this skua–petrel system.
dc.description.sponsorshipEffets de la gestion et du climat sur la dynamique des communautés - Développement d'une démographie multi-espèce. - ANR-16-CE02-0007
dc.language.isoen
dc.publisherEcological Society of America
dc.subject.enBayesian inference
dc.subject.enDemography
dc.subject.enEnvironmental variations
dc.subject.enIntegrated Population Model
dc.subject.enMatrix population model
dc.subject.enNimble
dc.subject.enPredator–Prey interactions
dc.title.enMultispecies integrated population model reveals bottom‐up dynamics in a seabird predator–prey system
dc.typeArticle de revue
dc.identifier.doi10.1002/ecm.1459
dc.subject.halSciences de l'environnement
bordeaux.journalEcological monographs
bordeaux.page1-17
bordeaux.volume91
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue3
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-03367131
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03367131v1
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