(Table 1) Cortisol concentration in hair of East Greenland polar bears (Ursus maritimus)
To demonstrate the ability to assess long-term hypothalamic-pituitary-adrenocortical (HPA) axis activity in polar bears (Ursus maritimus), a pilot study was conducted in which cortisol concentration was analyzed in hair from 7 female (3-19 years) and 10 male (6-19 years) East Greenland polar bears s...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.807316 2023-05-15T16:03:35+02:00 (Table 1) Cortisol concentration in hair of East Greenland polar bears (Ursus maritimus) Bechshøft, Thea Ø Sonne, Christian Dietz, Rune Born, Erik W Novak, M A Henchey, E Meyer, J S LATITUDE: 74.000000 * LONGITUDE: -20.000000 2011-02-14 text/tab-separated-values, 135 data points https://doi.pangaea.de/10.1594/PANGAEA.807316 https://doi.org/10.1594/PANGAEA.807316 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.807316 https://doi.org/10.1594/PANGAEA.807316 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Bechshøft, Thea Ø; Sonne, Christian; Dietz, Rune; Born, Erik W; Novak, M A; Henchey, E; Meyer, J S (2011): Cortisol levels in hair of East Greenland polar bears. Science of the Total Environment, 409(4), 831-834, https://doi.org/10.1016/j.scitotenv.2010.10.047 Age relative number of years Cortisol East_Greenland East Greenland International Polar Year (2007-2008) IPY Sampling date Sex Status Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.807316 https://doi.org/10.1016/j.scitotenv.2010.10.047 2023-01-20T09:00:32Z To demonstrate the ability to assess long-term hypothalamic-pituitary-adrenocortical (HPA) axis activity in polar bears (Ursus maritimus), a pilot study was conducted in which cortisol concentration was analyzed in hair from 7 female (3-19 years) and 10 male (6-19 years) East Greenland polar bears sampled in 1994-2006. The hair was chosen as matrix as it is non-invasive, seasonally harmonized, and has been validated as an index of long-term changes in cortisol levels. The samples were categorized according to contamination: eight were clean (2 females, 6 males), 5 had been contaminated with bear blood (2 F, 3 M), and 4 with bear fat (3 F, 1 M). There was no significant difference in cortisol concentration between the three categories after external contamination was removed. However, contaminated hair samples should be cleaned before cortisol determination. Average hair cortisol concentration was 8.90 pg/mg (range: 5.5 to 16.4 pg/mg). There was no significant correlation between cortisol concentration and age (p = 0.81) or sampling year (p = 0.11). However, females had higher mean cortisol concentration than males (females mean: 11.0 pg/mg, males: 7.3 pg/mg; p = 0.01). The study showed that polar bear hair contains measurable amounts of cortisol and that cortisol in hair may be used in studies of long-term stress in polar bears. Dataset East Greenland Greenland International Polar Year IPY Ursus maritimus PANGAEA - Data Publisher for Earth & Environmental Science Greenland ENVELOPE(-20.000000,-20.000000,74.000000,74.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age relative number of years Cortisol East_Greenland East Greenland International Polar Year (2007-2008) IPY Sampling date Sex Status |
spellingShingle |
Age relative number of years Cortisol East_Greenland East Greenland International Polar Year (2007-2008) IPY Sampling date Sex Status Bechshøft, Thea Ø Sonne, Christian Dietz, Rune Born, Erik W Novak, M A Henchey, E Meyer, J S (Table 1) Cortisol concentration in hair of East Greenland polar bears (Ursus maritimus) |
topic_facet |
Age relative number of years Cortisol East_Greenland East Greenland International Polar Year (2007-2008) IPY Sampling date Sex Status |
description |
To demonstrate the ability to assess long-term hypothalamic-pituitary-adrenocortical (HPA) axis activity in polar bears (Ursus maritimus), a pilot study was conducted in which cortisol concentration was analyzed in hair from 7 female (3-19 years) and 10 male (6-19 years) East Greenland polar bears sampled in 1994-2006. The hair was chosen as matrix as it is non-invasive, seasonally harmonized, and has been validated as an index of long-term changes in cortisol levels. The samples were categorized according to contamination: eight were clean (2 females, 6 males), 5 had been contaminated with bear blood (2 F, 3 M), and 4 with bear fat (3 F, 1 M). There was no significant difference in cortisol concentration between the three categories after external contamination was removed. However, contaminated hair samples should be cleaned before cortisol determination. Average hair cortisol concentration was 8.90 pg/mg (range: 5.5 to 16.4 pg/mg). There was no significant correlation between cortisol concentration and age (p = 0.81) or sampling year (p = 0.11). However, females had higher mean cortisol concentration than males (females mean: 11.0 pg/mg, males: 7.3 pg/mg; p = 0.01). The study showed that polar bear hair contains measurable amounts of cortisol and that cortisol in hair may be used in studies of long-term stress in polar bears. |
format |
Dataset |
author |
Bechshøft, Thea Ø Sonne, Christian Dietz, Rune Born, Erik W Novak, M A Henchey, E Meyer, J S |
author_facet |
Bechshøft, Thea Ø Sonne, Christian Dietz, Rune Born, Erik W Novak, M A Henchey, E Meyer, J S |
author_sort |
Bechshøft, Thea Ø |
title |
(Table 1) Cortisol concentration in hair of East Greenland polar bears (Ursus maritimus) |
title_short |
(Table 1) Cortisol concentration in hair of East Greenland polar bears (Ursus maritimus) |
title_full |
(Table 1) Cortisol concentration in hair of East Greenland polar bears (Ursus maritimus) |
title_fullStr |
(Table 1) Cortisol concentration in hair of East Greenland polar bears (Ursus maritimus) |
title_full_unstemmed |
(Table 1) Cortisol concentration in hair of East Greenland polar bears (Ursus maritimus) |
title_sort |
(table 1) cortisol concentration in hair of east greenland polar bears (ursus maritimus) |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.807316 https://doi.org/10.1594/PANGAEA.807316 |
op_coverage |
LATITUDE: 74.000000 * LONGITUDE: -20.000000 |
long_lat |
ENVELOPE(-20.000000,-20.000000,74.000000,74.000000) |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland Greenland International Polar Year IPY Ursus maritimus |
genre_facet |
East Greenland Greenland International Polar Year IPY Ursus maritimus |
op_source |
Supplement to: Bechshøft, Thea Ø; Sonne, Christian; Dietz, Rune; Born, Erik W; Novak, M A; Henchey, E; Meyer, J S (2011): Cortisol levels in hair of East Greenland polar bears. Science of the Total Environment, 409(4), 831-834, https://doi.org/10.1016/j.scitotenv.2010.10.047 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.807316 https://doi.org/10.1594/PANGAEA.807316 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.807316 https://doi.org/10.1016/j.scitotenv.2010.10.047 |
_version_ |
1766399261890576384 |