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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.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.nb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleBlack-legged kittiwakes as messengers of Atlantification in the Arcticnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480nb_NO
dc.subject.nsiVDP::Zoology and botany: 480nb_NO
dc.source.journalScientific Reportsnb_NO
dc.relation.projectAndre: French Polar Institutenb_NO
dc.relation.projectEgen institusjon: The MOS programnb_NO
cristin.unitnameAvdeling for terrestrisk økologi

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal