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dc.contributor.authorVihtakari, Mikko
dc.contributor.authorWelcker, Jorg
dc.contributor.authorMoe, Børge
dc.contributor.authorChastel, Olivier
dc.contributor.authorTartu, Sabrina
dc.contributor.authorHop, Haakon
dc.contributor.authorBech, Claus
dc.contributor.authorDescamps, Sébastien
dc.contributor.authorGabrielsen, Geir W.
dc.date.accessioned2018-04-26T16:27:27Z
dc.date.available2018-04-26T16:27:27Z
dc.date.issued2018-01-19
dc.description.abstractClimate warming is rapidly altering marine ecosystems towards a more temperate state on the European side of the Arctic. However, this “Atlantification” has rarely been confirmed, as long-term datasets on Arctic marine organisms are scarce. We present a 19-year time series (1982–2016) of diet samples from black-legged kittiwakes as an indicator of the changes in a high Arctic marine ecosystem (Kongsfjorden, Svalbard). Our results highlight a shift from Arctic prey dominance until 2006 to a more mixed diet with high contribution of Atlantic fishes. Capelin, an Atlantic species, dominated the diet composition in 2007, marking a shift in the food web. The occurrence of polar cod, a key Arctic fish species, positively correlated with sea ice index, whereas Atlantic species demonstrated the opposite correlation indicating that the diet shift was likely connected with recent climate warming. Kittiwakes, which gather available fish and zooplankton near the sea surface to feed their chicks, can act as messengers of ecosystem change. Changes in their diet reveal that the Kongsfjord system has drifted in an Atlantic direction over the last decade.en_US
dc.description.sponsorshipThe MOS program. French Polar Institute.en_US
dc.descriptionSource at <a href=http://doi.org/10.1038/s41598-017-19118-8> http://doi.org/10.1038/s41598-017-19118-8 </a>en_US
dc.identifier.citationVihtakari, M., Welcker, J., Moe, B., Chastel, O., Tartu, S., Hop, H. ... Gabrielsen, G. W. (2018). Black-legged kittiwakes as messengers of Atlantification in the Arctic. Scientific Reports. 8. http://doi.org/10.1038/s41598-017-19118-8en_US
dc.identifier.cristinIDFRIDAID 1547392
dc.identifier.doi10.1038/s41598-017-19118-8
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/10037/12628
dc.language.isoengen_US
dc.publisherNature Publishing Groupen_US
dc.relation.journalScientific Reports
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.subjectVDP::Mathematics and natural scienses: 400::Zoology and botany: 480en_US
dc.subjectEcosystem ecologyen_US
dc.subjectPhenologyen_US
dc.subjectPopulation dynamicsen_US
dc.titleBlack-legged kittiwakes as messengers of Atlantification in the Arcticen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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