Hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (Ursus arctos): considerations with implications for other wildlife
Human-caused landscape change negatively affects the sustainability of many wildlife populations. In Alberta, Canada, grizzly bears ( Ursus arctos L., 1758) live in one of the most populated and heavily exploited landscapes in which the species survives. Long-term physiological stress in individual...
Published in: | Canadian Journal of Zoology |
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2010
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Online Access: | http://dx.doi.org/10.1139/z10-057 http://www.nrcresearchpress.com/doi/full-xml/10.1139/Z10-057 http://www.nrcresearchpress.com/doi/pdf/10.1139/Z10-057 |
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crcansciencepubl:10.1139/z10-057 2024-06-23T07:57:21+00:00 Hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (Ursus arctos): considerations with implications for other wildlife Macbeth, B. J. Cattet, M.R.L. Stenhouse, G. B. Gibeau, M. L. Janz, D. M. 2010 http://dx.doi.org/10.1139/z10-057 http://www.nrcresearchpress.com/doi/full-xml/10.1139/Z10-057 http://www.nrcresearchpress.com/doi/pdf/10.1139/Z10-057 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 88, issue 10, page 935-949 ISSN 0008-4301 1480-3283 journal-article 2010 crcansciencepubl https://doi.org/10.1139/z10-057 2024-06-06T04:11:17Z Human-caused landscape change negatively affects the sustainability of many wildlife populations. In Alberta, Canada, grizzly bears ( Ursus arctos L., 1758) live in one of the most populated and heavily exploited landscapes in which the species survives. Long-term physiological stress in individual animals may be the predominant mechanism linking landscape change with impaired wildlife population health. Hair cortisol concentration has been validated as a biomarker of long-term stress in humans and domestic animals; however, limited work has examined factors that may affect its measurement or interpretation. We have measured cortisol in as few as five guard hairs of a grizzly bear and have identified factors influencing hair cortisol concentration in this species. Hair cortisol varies with hair type, body region, and capture method. It is not influenced by colour, age, sex, environmental exposure (18 days), or prolonged laboratory storage (>1 year) and does not vary along the length of the hair shaft. Recommendations for prudent use of hair cortisol analysis in grizzly bears are discussed with implications for the development of hair cortisol concentration as a tool to monitor long-term stress in other wildlife. Article in Journal/Newspaper Ursus arctos Canadian Science Publishing Canada Canadian Journal of Zoology 88 10 935 949 |
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Open Polar |
collection |
Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Human-caused landscape change negatively affects the sustainability of many wildlife populations. In Alberta, Canada, grizzly bears ( Ursus arctos L., 1758) live in one of the most populated and heavily exploited landscapes in which the species survives. Long-term physiological stress in individual animals may be the predominant mechanism linking landscape change with impaired wildlife population health. Hair cortisol concentration has been validated as a biomarker of long-term stress in humans and domestic animals; however, limited work has examined factors that may affect its measurement or interpretation. We have measured cortisol in as few as five guard hairs of a grizzly bear and have identified factors influencing hair cortisol concentration in this species. Hair cortisol varies with hair type, body region, and capture method. It is not influenced by colour, age, sex, environmental exposure (18 days), or prolonged laboratory storage (>1 year) and does not vary along the length of the hair shaft. Recommendations for prudent use of hair cortisol analysis in grizzly bears are discussed with implications for the development of hair cortisol concentration as a tool to monitor long-term stress in other wildlife. |
format |
Article in Journal/Newspaper |
author |
Macbeth, B. J. Cattet, M.R.L. Stenhouse, G. B. Gibeau, M. L. Janz, D. M. |
spellingShingle |
Macbeth, B. J. Cattet, M.R.L. Stenhouse, G. B. Gibeau, M. L. Janz, D. M. Hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (Ursus arctos): considerations with implications for other wildlife |
author_facet |
Macbeth, B. J. Cattet, M.R.L. Stenhouse, G. B. Gibeau, M. L. Janz, D. M. |
author_sort |
Macbeth, B. J. |
title |
Hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (Ursus arctos): considerations with implications for other wildlife |
title_short |
Hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (Ursus arctos): considerations with implications for other wildlife |
title_full |
Hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (Ursus arctos): considerations with implications for other wildlife |
title_fullStr |
Hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (Ursus arctos): considerations with implications for other wildlife |
title_full_unstemmed |
Hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (Ursus arctos): considerations with implications for other wildlife |
title_sort |
hair cortisol concentration as a noninvasive measure of long-term stress in free-ranging grizzly bears (ursus arctos): considerations with implications for other wildlife |
publisher |
Canadian Science Publishing |
publishDate |
2010 |
url |
http://dx.doi.org/10.1139/z10-057 http://www.nrcresearchpress.com/doi/full-xml/10.1139/Z10-057 http://www.nrcresearchpress.com/doi/pdf/10.1139/Z10-057 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
Canadian Journal of Zoology volume 88, issue 10, page 935-949 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z10-057 |
container_title |
Canadian Journal of Zoology |
container_volume |
88 |
container_issue |
10 |
container_start_page |
935 |
op_container_end_page |
949 |
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1802650951405797376 |