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dc.contributor.authorBertrand, Philip
dc.contributor.authorStrøm, Hallvard
dc.contributor.authorBêty, Joël
dc.contributor.authorSteen, Harald
dc.contributor.authorKohler, Jack
dc.contributor.authorVihtakari, Mikko
dc.contributor.authorVan Pelt, Ward
dc.contributor.authorYoccoz, Nigel Gilles
dc.contributor.authorHop, Haakon
dc.contributor.authorHarris, Stephanie M.
dc.contributor.authorPatrick, Samantha C.
dc.contributor.authorAssmy, Philipp
dc.contributor.authorWold, Anette
dc.contributor.authorDuarte, Pedro
dc.contributor.authorMoholdt, Geir
dc.contributor.authorDescamps, Sébastien
dc.date.accessioned2021-12-08T14:18:17Z
dc.date.available2021-12-08T14:18:17Z
dc.date.issued2021-10-28
dc.description.abstractTidewater glacier fronts can represent important foraging areas for Arctic predators. Their ecological importance is likely to change in a warmer Arctic. Their profitability and use by consumers are expected to vary in time, but the underlying mechanisms driving such variation remain poorly known. The subglacial plume, originating from meltwater discharge, is responsible for the entrainment and transport of zooplankton to the surface, making them more readily available for surface-feeding seabirds. Both discharge and zooplankton abundance are known to fluctuate in time and are thus expected to modulate the foraging profitability of glacier fronts. This study tested the predictions that annual use of glacier fronts by black-legged kittiwakes Rissa tridactyla is positively related to the average glacier discharge and prey biomass in the fjord. To do this, we combined a multiyear dataset of environmental drivers and GPS tracks of birds in Kongsfjorden, Svalbard. Our results confirmed the interannual variation in the use of glacier fronts by kittiwakes; however, contrary to our predictions, these variations were negatively correlated to both glacier discharge and zooplankton abundance. These apparent negative relationships likely reflect non-linear effects and complex interactions between local and regional environmental factors that affect the relative profitability of glacier fronts as foraging areas. Despite their high spatial predictability, glacier fronts may not offer consistent foraging opportunities for marine predators over time.en_US
dc.identifier.citationBertrand, Strøm, Bêty, Steen, Kohler, Vihtakari, Van Pelt, Yoccoz, Hop, Harris, Patrick, Assmy, Wold, Duarte, Moholdt, Descamps. Feeding at the front line: Interannual variation in the use of glacier fronts by foraging black-legged kittiwakes. Marine Ecology Progress Series. 2021;677:197-208en_US
dc.identifier.cristinIDFRIDAID 1964198
dc.identifier.doi10.3354/meps13869
dc.identifier.issn0171-8630
dc.identifier.issn1616-1599
dc.identifier.urihttps://hdl.handle.net/10037/23321
dc.language.isoengen_US
dc.publisherInter Researchen_US
dc.relation.journalMarine Ecology Progress Series
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 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.titleFeeding at the front line: Interannual variation in the use of glacier fronts by foraging black-legged kittiwakesen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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