Measuring environmental stress in East Greenland polar bears, 1892-1927 and 1988-2009: what does hair cortisol tell us?
Hair sampled from 96 East Greenland polar bears ( Ursus maritimus ) over the periods 1892-1927 and 1988-2009 was analyzed for cortisol as a proxy to investigate temporal patterns of environmental stress. Cortisol concentration was independent of sex and age, and was found at significantly higher ) (...
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ftvliz:oai:oma.vliz.be:238464 2023-05-15T16:03:36+02:00 Measuring environmental stress in East Greenland polar bears, 1892-1927 and 1988-2009: what does hair cortisol tell us? Bechshoft, T.O. Riget, F.F. Sonne, C. Letcher, R.J. Muir, D.C.G. Novak, M.A. Henchey, E. Meyer, J.S. Eulaers, I. Jaspers, V.L.B. Eens, M. Covaci, A. Dietz, R. 2012 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238464 en eng info:eu-repo/semantics/altIdentifier/wos/000305728700003 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.envint.2012.04.005 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238464 info:eu-repo/semantics/restrictedAccess %3Ci%3EEnviron.+Int.+45%3C%2Fi%3E%3A+15-21.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.envint.2012.04.005%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.envint.2012.04.005%3C%2Fa%3E Ursus maritimus [polar bear] info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftvliz https://doi.org/10.1016/j.envint.2012.04.005 2022-05-01T10:15:52Z Hair sampled from 96 East Greenland polar bears ( Ursus maritimus ) over the periods 1892-1927 and 1988-2009 was analyzed for cortisol as a proxy to investigate temporal patterns of environmental stress. Cortisol concentration was independent of sex and age, and was found at significantly higher ) (p<0.001) concentrations in historical hair samples (1892-1927; n = 8) relative to recent ones (1988-2009; n = 88). In addition, there was a linear time trend in cortisol concentration of the recent samples (p<0.01), with an annual decrease of 2.7%. The recent hair samples were also analyzed for major bioaccumulative, persistent organic pollutants (POPs). There were no obvious POP related time trends or correlations between hair cortisol and hair POP concentrations. Thus, polar bear hair appears to be a relatively poor indicator of the animal's general POP load in adipose tissue. However, further investigations are warranted to explore the reasons for the temporal decrease found in the bears' hair cortisol levels. Article in Journal/Newspaper East Greenland Greenland polar bear Ursus maritimus Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Greenland Environment International 45 15 21 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Ursus maritimus [polar bear] |
spellingShingle |
Ursus maritimus [polar bear] Bechshoft, T.O. Riget, F.F. Sonne, C. Letcher, R.J. Muir, D.C.G. Novak, M.A. Henchey, E. Meyer, J.S. Eulaers, I. Jaspers, V.L.B. Eens, M. Covaci, A. Dietz, R. Measuring environmental stress in East Greenland polar bears, 1892-1927 and 1988-2009: what does hair cortisol tell us? |
topic_facet |
Ursus maritimus [polar bear] |
description |
Hair sampled from 96 East Greenland polar bears ( Ursus maritimus ) over the periods 1892-1927 and 1988-2009 was analyzed for cortisol as a proxy to investigate temporal patterns of environmental stress. Cortisol concentration was independent of sex and age, and was found at significantly higher ) (p<0.001) concentrations in historical hair samples (1892-1927; n = 8) relative to recent ones (1988-2009; n = 88). In addition, there was a linear time trend in cortisol concentration of the recent samples (p<0.01), with an annual decrease of 2.7%. The recent hair samples were also analyzed for major bioaccumulative, persistent organic pollutants (POPs). There were no obvious POP related time trends or correlations between hair cortisol and hair POP concentrations. Thus, polar bear hair appears to be a relatively poor indicator of the animal's general POP load in adipose tissue. However, further investigations are warranted to explore the reasons for the temporal decrease found in the bears' hair cortisol levels. |
format |
Article in Journal/Newspaper |
author |
Bechshoft, T.O. Riget, F.F. Sonne, C. Letcher, R.J. Muir, D.C.G. Novak, M.A. Henchey, E. Meyer, J.S. Eulaers, I. Jaspers, V.L.B. Eens, M. Covaci, A. Dietz, R. |
author_facet |
Bechshoft, T.O. Riget, F.F. Sonne, C. Letcher, R.J. Muir, D.C.G. Novak, M.A. Henchey, E. Meyer, J.S. Eulaers, I. Jaspers, V.L.B. Eens, M. Covaci, A. Dietz, R. |
author_sort |
Bechshoft, T.O. |
title |
Measuring environmental stress in East Greenland polar bears, 1892-1927 and 1988-2009: what does hair cortisol tell us? |
title_short |
Measuring environmental stress in East Greenland polar bears, 1892-1927 and 1988-2009: what does hair cortisol tell us? |
title_full |
Measuring environmental stress in East Greenland polar bears, 1892-1927 and 1988-2009: what does hair cortisol tell us? |
title_fullStr |
Measuring environmental stress in East Greenland polar bears, 1892-1927 and 1988-2009: what does hair cortisol tell us? |
title_full_unstemmed |
Measuring environmental stress in East Greenland polar bears, 1892-1927 and 1988-2009: what does hair cortisol tell us? |
title_sort |
measuring environmental stress in east greenland polar bears, 1892-1927 and 1988-2009: what does hair cortisol tell us? |
publishDate |
2012 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238464 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland Greenland polar bear Ursus maritimus |
genre_facet |
East Greenland Greenland polar bear Ursus maritimus |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/wos/000305728700003 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.envint.2012.04.005 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238464 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.envint.2012.04.005 |
container_title |
Environment International |
container_volume |
45 |
container_start_page |
15 |
op_container_end_page |
21 |
_version_ |
1766399276439568384 |