Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United States
To assess geographic distributions of elements in the Arctic we compared essential and non-essential elements in the livers of polar bears (Ursus maritimus) collected from five regions within Canada in 2002, in Alaska between 1994 and 1999 and from the northwest and east coasts of Greenland between...
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Online Access: | https://scholar.uwindsor.ca/glierpub/410 https://doi.org/10.1016/j.envpol.2007.09.006 |
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ftunivwindsor:oai:scholar.uwindsor.ca:glierpub-1412 2023-06-11T04:08:59+02:00 Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United States Rush, Scott A. Borgå, Katrine Dietz, Rune Born, Erik W. Sonne, Christian Evans, Thomas Muir, Derek C.G. Letcher, Robert J. Norstrom, Ross J. Fisk, Aaron T. 2008-06-01T07:00:00Z https://scholar.uwindsor.ca/glierpub/410 https://doi.org/10.1016/j.envpol.2007.09.006 unknown Scholarship at UWindsor https://scholar.uwindsor.ca/glierpub/410 doi:10.1016/j.envpol.2007.09.006 https://doi.org/10.1016/j.envpol.2007.09.006 Great Lakes Institute for Environmental Research Publications Arctic Contaminants Metals Regional differences Ursus maritimus text 2008 ftunivwindsor https://doi.org/10.1016/j.envpol.2007.09.006 2023-05-06T19:10:50Z To assess geographic distributions of elements in the Arctic we compared essential and non-essential elements in the livers of polar bears (Ursus maritimus) collected from five regions within Canada in 2002, in Alaska between 1994 and 1999 and from the northwest and east coasts of Greenland between 1988 and 2000. As, Hg, Pb and Se varied with age, and Co and Zn with gender, which limited spatial comparisons across all populations to Cd, which was highest in Greenland bears. Collectively, geographic relationships appeared similar to past studies with little change in concentration over time in Canada and Greenland for most elements; Hg and Se were higher in some Canadian populations in 2002 as compared to 1982 and 1984. Concentrations of most elements in the polar bears did not exceed toxicity thresholds, although Cd and Hg exceeded levels correlated with the formation of hepatic lesions in laboratory animals. © 2007 Elsevier Ltd. All rights reserved. Text Arctic Greenland Ursus maritimus Alaska University of Windsor, Ontario: Scholarship at UWindsor Arctic Canada Greenland Environmental Pollution 153 3 618 626 |
institution |
Open Polar |
collection |
University of Windsor, Ontario: Scholarship at UWindsor |
op_collection_id |
ftunivwindsor |
language |
unknown |
topic |
Arctic Contaminants Metals Regional differences Ursus maritimus |
spellingShingle |
Arctic Contaminants Metals Regional differences Ursus maritimus Rush, Scott A. Borgå, Katrine Dietz, Rune Born, Erik W. Sonne, Christian Evans, Thomas Muir, Derek C.G. Letcher, Robert J. Norstrom, Ross J. Fisk, Aaron T. Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United States |
topic_facet |
Arctic Contaminants Metals Regional differences Ursus maritimus |
description |
To assess geographic distributions of elements in the Arctic we compared essential and non-essential elements in the livers of polar bears (Ursus maritimus) collected from five regions within Canada in 2002, in Alaska between 1994 and 1999 and from the northwest and east coasts of Greenland between 1988 and 2000. As, Hg, Pb and Se varied with age, and Co and Zn with gender, which limited spatial comparisons across all populations to Cd, which was highest in Greenland bears. Collectively, geographic relationships appeared similar to past studies with little change in concentration over time in Canada and Greenland for most elements; Hg and Se were higher in some Canadian populations in 2002 as compared to 1982 and 1984. Concentrations of most elements in the polar bears did not exceed toxicity thresholds, although Cd and Hg exceeded levels correlated with the formation of hepatic lesions in laboratory animals. © 2007 Elsevier Ltd. All rights reserved. |
format |
Text |
author |
Rush, Scott A. Borgå, Katrine Dietz, Rune Born, Erik W. Sonne, Christian Evans, Thomas Muir, Derek C.G. Letcher, Robert J. Norstrom, Ross J. Fisk, Aaron T. |
author_facet |
Rush, Scott A. Borgå, Katrine Dietz, Rune Born, Erik W. Sonne, Christian Evans, Thomas Muir, Derek C.G. Letcher, Robert J. Norstrom, Ross J. Fisk, Aaron T. |
author_sort |
Rush, Scott A. |
title |
Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United States |
title_short |
Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United States |
title_full |
Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United States |
title_fullStr |
Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United States |
title_full_unstemmed |
Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United States |
title_sort |
geographic distribution of selected elements in the livers of polar bears from greenland, canada and the united states |
publisher |
Scholarship at UWindsor |
publishDate |
2008 |
url |
https://scholar.uwindsor.ca/glierpub/410 https://doi.org/10.1016/j.envpol.2007.09.006 |
geographic |
Arctic Canada Greenland |
geographic_facet |
Arctic Canada Greenland |
genre |
Arctic Greenland Ursus maritimus Alaska |
genre_facet |
Arctic Greenland Ursus maritimus Alaska |
op_source |
Great Lakes Institute for Environmental Research Publications |
op_relation |
https://scholar.uwindsor.ca/glierpub/410 doi:10.1016/j.envpol.2007.09.006 https://doi.org/10.1016/j.envpol.2007.09.006 |
op_doi |
https://doi.org/10.1016/j.envpol.2007.09.006 |
container_title |
Environmental Pollution |
container_volume |
153 |
container_issue |
3 |
container_start_page |
618 |
op_container_end_page |
626 |
_version_ |
1768382655892553728 |