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dc.contributor.authorPedersen, Hans Christian
dc.contributor.authorNybø, Signe
dc.contributor.authorSandercock, Brett
dc.coverage.spatialNoreg, Norge, Norwayen_US
dc.description.abstractWe examined the exposure of White-throated Dippers (Cinclus cinclus) to aluminum and mercury in acidified and nonacidified streams in two regions of Norway. Both metals showed significantly higher concentrations in the body tissues of dippers in acidified streams at southern sites compared to non-acidified streams in central Norway. Elevated concentrations of aluminum in acidified areas could not be explained by a corresponding elevated level of aluminum in the invertebrate foods of dippers. During our study period in 1993–1995, deposition rates of mercury by long-range air pollution were higher in southern than central Norway. High levels of mercury in dippers could have been due to higher levels of atmospheric deposition or higher water acidity in southern Norway. We found a high correlation between mercury levels in body tissues of females and their eggs, but not for aluminum. Thus, eggs are suitable for monitoring mercury levels but not for aluminum in female dippers. Our data provide baseline estimates of exposure to heavy metals in freshwater ecosystems in Norway that will be useful for monitoring future trendsen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectAcidified streamsen_US
dc.subjectHeavy metalsen_US
dc.subjectLong-range pollutionen_US
dc.titleExposure of White‑throated Dippers to heavy metals in acidified and non‑acidified streams in Norwayen_US
dc.typeJournal articleen_US
dc.rights.holder© The Author(s) 2020en_US
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.source.journalJournal of Ornithologyen_US

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Navngivelse 4.0 Internasjonal
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