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dc.contributor.authorPecuchet, Laurene
dc.contributor.authorBlanchet, Marie-Anne
dc.contributor.authorFrainer, Andre barbosa
dc.contributor.authorHusson, Bérengère
dc.contributor.authorJørgensen, Lis Lindal
dc.contributor.authorKortsch, Susanne
dc.contributor.authorPrimicerio, Raul
dc.date.accessioned2020-08-17T11:11:09Z
dc.date.available2020-08-17T11:11:09Z
dc.date.issued2020-06-01
dc.description.abstractSpecies are redistributing globally in response to climate warming, impacting ecosystem functions and services. In the Barents Sea, poleward expansion of boreal species and a decreased abundance of Arctic species are causing a rapid borealization of the Arctic communities. This borealization might have profound consequences on the Arctic food web by creating novel feeding interactions between previously non co‐occurring species. An early identification of new feeding links is crucial to predict their ecological impact. However, detection by traditional approaches, including stomach content and isotope analyses, although fundamental, cannot cope with the speed of change observed in the region, nor with the urgency of understanding the consequences of species redistribution for the marine ecosystem. In this study, we used an extensive food web (metaweb) with nearly 2,500 documented feeding links between 239 taxa coupled with a trait data set to predict novel feeding interactions and to quantify their potential impact on Arctic food web structure. We found that feeding interactions are largely determined by the body size of interacting species, although species foraging habitat and metabolic type are also important predictors. Further, we found that all boreal species will have at least one potential resource in the Arctic region should they redistribute therein. During 2014–2017, 11 boreal species were observed in the Arctic region of the Barents Sea. These incoming species, which are all generalists, change the structural properties of the Arctic food web by increasing connectance and decreasing modularity. In addition, these boreal species are predicted to initiate novel feeding interactions with the Arctic residents, which might amplify their impact on Arctic food web structure affecting ecosystem functioning and vulnerability. Under the ongoing species redistribution caused by environmental change, we propose merging a trait‐based approach with ecological network analysis to efficiently predict the impacts of range‐shifting species on food webs.en_US
dc.identifier.citationPecuchet, Blanchet, Frainer, Husson, Jørgensen, Kortsch, Primicerio. Novel feeding interactions amplify the impact of species redistribution on an Arctic food web. Global Change Biology. 2020en_US
dc.identifier.cristinIDFRIDAID 1820270
dc.identifier.doi10.1111/gcb.15196
dc.identifier.issn1354-1013
dc.identifier.issn1365-2486
dc.identifier.urihttps://hdl.handle.net/10037/18977
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalGlobal Change Biology
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/MARINFORSK/288192/Norway/Assessing risks of cumulative impacts on the Barents Sea ecosystem and its services//en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2020 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.titleNovel feeding interactions amplify the impact of species redistribution on an Arctic food weben_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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