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dc.contributor.authorTartu, Sabrina
dc.contributor.authorAars, Jon
dc.contributor.authorAndersen, Magnus
dc.contributor.authorPolder, Anuschka
dc.contributor.authorBourgeon, Sophie
dc.contributor.authorMerkel, Benjamin
dc.contributor.authorLowther, Andrew D.
dc.contributor.authorBytingsvik, Jenny
dc.contributor.authorWelker, Jeffrey Martin
dc.contributor.authorDerocher, Andrew E.
dc.contributor.authorJenssen, Bjørn Munro
dc.contributor.authorRoutti, Heli
dc.date.accessioned2018-10-31T09:44:12Z
dc.date.available2018-10-31T09:44:12Z
dc.date.issued2018-01-24
dc.description.abstractVariation in space-use is common within mammal populations. In polar bears, Ursus maritimus, some individuals follow the sea ice (offshore bears) whereas others remain nearshore yearlong (coastal bears). We studied pollutant exposure in relation to space-use patterns (offshore vs coastal) in adult female polar bears from the Barents Sea equipped with satellite collars (2000–2014, n = 152). First, we examined the differences in home range (HR) size and position, body condition, and diet proxies (nitrogen and carbon stable isotopes, n = 116) between offshore and coastal space-use. Second, we investigated how HR, space-use, body condition, and diet were related to plasma concentrations of polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) (n = 113), perfluoroalkyl substances (PFASs; n = 92), and hydroxylated-PCBs (n = 109). Offshore females were in better condition and had a more specialized diet than did coastal females. PCBs, OCPs, and hydroxylated-PCB concentrations were not related to space-use strategy, yet PCB concentrations increased with increasing latitude, and hydroxylated-PCB concentrations were positively related to HR size. PFAS concentrations were 30–35% higher in offshore bears compared to coastal bears and also increased eastward. On the basis of the results we conclude that space-use of Barents Sea female polar bears influences their pollutant exposure, in particular plasma concentrations of PFAS.en_US
dc.description.sponsorshipThe Norwegian Polar Institute The Ministry of Climate and Environment Norwegian Environment Agency World Wildlife Fund Norwegian Fulbright Distinguished U.S. Arctic Chairshipen_US
dc.descriptionAccepted manuscript version. Published version available at <a href=https://doi.org/10.1021/acs.est.7b06137> https://doi.org/10.1021/acs.est.7b06137</a>.en_US
dc.identifier.citationTartu, S., Aars, J., Andersen, M., Polder, A., Bourgeon, S., Merkel, B., ... Routti, H. (2018). Choose your poison – Space-use strategy influences pollutant exposure in Barents Sea polar bears. Environmental Science and Technolog, 52(5), 3211-3221. https://doi.org/10.1021/acs.est.7b06137en_US
dc.identifier.cristinIDFRIDAID 1581472
dc.identifier.doi10.1021/acs.est.7b06137
dc.identifier.issn1086-931X
dc.identifier.issn1520-6912
dc.identifier.urihttps://hdl.handle.net/10037/14064
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.journalEnvironmental Science and Technology. News & research
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/POLARPROG/216568/Norway/Synergistic effects of sea ice-free periods and contaminant exposure on energy metabolism in polar bears//en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/IPY/175989/Norway/Polar bear circumpolar health assessment in relation to toxicants and climate changing//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Chemistry: 440en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Kjemi: 440en_US
dc.titleChoose your poison – Space-use strategy influences pollutant exposure in Barents Sea polar bearsen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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