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dc.contributor.authorRemili, Anaïs
dc.contributor.authorDietz, Rune
dc.contributor.authorSonne, Christian
dc.contributor.authorSamarra, Filipa I. P.
dc.contributor.authorRikardsen, Audun H.
dc.contributor.authorKettemer, Lisa Elena
dc.contributor.authorFerguson, Steven H.
dc.contributor.authorWatt, Cortney A.
dc.contributor.authorMatthews, Cory J. D.
dc.contributor.authorKiszka, Jeremy J.
dc.contributor.authorJourdain, Eve Marie
dc.contributor.authorBorgå, Katrine
dc.contributor.authorRuus, Anders
dc.contributor.authorGranquist, Sandra M.
dc.contributor.authorRosing-Asvid, Aqqalu
dc.contributor.authorMcKinney, Melissa A.
dc.date.accessioned2023-08-24T08:29:52Z
dc.date.available2023-08-24T08:29:52Z
dc.date.issued2023-04-13
dc.description.abstractQuantifying the diet composition of apex marine predators such as killer whales (Orcinus orca) is critical to assessing their food web impacts. Yet, with few exceptions, the feeding ecology of these apex predators remains poorly understood. <p>Here, we use our newly validated quantitative fatty acid signature analysis (QFASA) approach on nearly 200 killer whales and over 900 potential prey to model their diets across the 5000 km span of the North Atlantic. <p>Diet estimates show that killer whales mainly consume other whales in the western North Atlantic (Canadian Arctic, Eastern Canada), seals in the mid-North Atlantic (Greenland), and fish in the eastern North Atlantic (Iceland, Faroe Islands, Norway). Nonetheless, diet estimates also varied widely among individuals within most regions. This level of inter-individual feeding variation should be considered for future ecological studies focusing on killer whales in the North Atlantic and other oceans. <p>These estimates reveal remarkable population- and individual-level variation in the trophic ecology of these killer whales, which can help to assess how their predation impacts community and ecosystem dynamics in changing North Atlantic marine ecosystems. <p>This new approach provides researchers with an invaluable tool to study the feeding ecology of oceanic top predators.en_US
dc.identifier.citationRemili, Dietz, Sonne, Samarra, Rikardsen, Kettemer, Ferguson, Watt, Matthews, Kiszka, Jourdain, Borgå, Ruus, Granquist, Rosing-Asvid, McKinney. Quantitative fatty acid signature analysis reveals a high level of dietary specialization in killer whales across the North Atlantic. Journal of Animal Ecology. 2023en_US
dc.identifier.cristinIDFRIDAID 2145387
dc.identifier.doi10.1111/1365-2656.13920
dc.identifier.issn0021-8790
dc.identifier.issn1365-2656
dc.identifier.urihttps://hdl.handle.net/10037/30304
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalJournal of Animal Ecology
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleQuantitative fatty acid signature analysis reveals a high level of dietary specialization in killer whales across the North Atlanticen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Med mindre det står noe annet, er denne innførselens lisens beskrevet som Attribution 4.0 International (CC BY 4.0)