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dc.contributor.authorSmith, Reyd A.
dc.contributor.authorFort, Jérôme
dc.contributor.authorLegagneux, Pierre
dc.contributor.authorChastel, Olivier
dc.contributor.authorMallory, Mark L.
dc.contributor.authorBustamante, Paco
dc.contributor.authorDanielsen, Jóhannis
dc.contributor.authorHanssen, Sveinn Are
dc.contributor.authorEinar Jónsson, Jón
dc.contributor.authorMagnúsdóttir, Ellen
dc.contributor.authorMoe, Børge
dc.contributor.authorParenteau, Charline
dc.contributor.authorParkinson, Kyle J.L.
dc.contributor.authorParsons, Glen J.
dc.contributor.authorTertitski, Grigori
dc.contributor.authorLove, Oliver P.
dc.coverage.spatialArcticen_US
dc.date.accessioned2024-06-18T13:24:31Z
dc.date.available2024-06-18T13:24:31Z
dc.date.created2023-05-04T11:18:34Z
dc.date.issued2023
dc.identifier.citationGeneral and Comparative Endocrinology. 2023, 337 .en_US
dc.identifier.issn0016-6480
dc.identifier.urihttps://hdl.handle.net/11250/3134558
dc.description.abstractGlobal climate change is causing abiotic shifts such as higher air and ocean temperatures, and disappearing sea ice in Arctic ecosystems. These changes influence Arctic-breeding seabird foraging ecology by altering prey availability and selection, affecting individual body condition, reproductive success, and exposure to contaminants such as mercury (Hg). The cumulative effects of alterations to foraging ecology and Hg exposure may interactively alter the secretion of key reproductive hormones such as prolactin (PRL), important for parental attachment to eggs and offspring and overall reproductive success. However, more research is needed to investigate the relationships between these potential links. Using data collected from 106 incubating female common eiders (Somateria mollissima) at six Arctic and sub-Arctic colonies, we examined whether the relationship between individual foraging ecology (assessed using δ13C, δ15N) and total Hg (THg) exposure predicted PRL levels. We found a significant, complex interaction between δ13C, δ15N and THg on PRL, suggesting that individuals cumulatively foraging at lower trophic levels, in phytoplankton-dominant environments, and with the highest THg levels had the most constant significant relationship PRL levels. Cumulatively, these three interactive variables resulted in lowered PRL. Overall, results demonstrate the potential downstream and cumulative implications of environmentally induced changes in foraging ecology, in combination with THg exposure, on hormones known to influence reproductive success in seabirds. These findings are notable in the context of continuing environmental and food web changes in Arctic systems, which may make seabird populations more susceptible to ongoing stressors. Stable isotopes Carbon-13 Nitrogen-15 Mercury Seabird Arcticen_US
dc.language.isoengen_US
dc.subjectStable isotopesen_US
dc.subjectCarbon-13en_US
dc.subjectNitrogen-15en_US
dc.subjectMercuryen_US
dc.subjectSeabirden_US
dc.subjectArcticen_US
dc.titleDo foraging ecology and contaminants interactively predict parenting hormone levels in common eider?en_US
dc.title.alternativeDo foraging ecology and contaminants interactively predict parenting hormone levels in common eider?en_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.rights.holder© 2023 The Authorsen_US
dc.subject.nsiVDP::Basale biofag: 470en_US
dc.subject.nsiVDP::Basic biosciences: 470en_US
dc.source.pagenumber0en_US
dc.source.volume337en_US
dc.source.journalGeneral and Comparative Endocrinologyen_US
dc.identifier.doi10.1016/j.ygcen.2023.114261
dc.identifier.cristin2145392
dc.source.articlenumber114261en_US
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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