(Table 1) Concentration of pollutants in hair of East Greenland polar bears (Ursus maritimus)
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2012
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| author | Bechshøft, Thea Ø Rigét, Frank F Sonne, Christian Letcher, Robert J Muir, Derek C G Novak, M A Henchey, E Meyer, J S Eulaers, I Jaspers, Veerle LB Eens, Marcel Covaci, Adrian Dietz, Rune |
| author_facet | Bechshøft, Thea Ø Rigét, Frank F Sonne, Christian Letcher, Robert J Muir, Derek C G Novak, M A Henchey, E Meyer, J S Eulaers, I Jaspers, Veerle LB Eens, Marcel Covaci, Adrian Dietz, Rune |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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 | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_807320 |
| institution | PANGAEA |
| language | en |
| publishDate | 2012 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Concentration of pollutants in hair of East Greenland polar bears (Ursus maritimus) Bechshøft, Thea Ø Rigét, Frank F Sonne, Christian Letcher, Robert J Muir, Derek C G Novak, M A Henchey, E Meyer, J S Eulaers, I Jaspers, Veerle LB Eens, Marcel Covaci, Adrian Dietz, Rune Dichlorodiphenyldichloroethylene, standard deviation; East_Greenland; East Greenland; International Polar Year (2007-2008); IPY; Oxychlordane; para,para-Dichlorodiphenyldichloroethylene; Polybrominated diphenyl ethers, congener BDE-47; Polybrominated diphenyl ethers, standard deviation; Polychlorinated biphenyl, standard deviation; Polychlorinated biphenyl 138; Polychlorinated biphenyl 153; Polychlorinated biphenyl 156; Polychlorinated biphenyl 170; Polychlorinated biphenyl 180; Polychlorinated biphenyl 183; Polychlorinated biphenyl 187; Standard deviation; trans-Nonachlor 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. |
| title | (Table 1) Concentration of pollutants in hair of East Greenland polar bears (Ursus maritimus) |
| topic | Dichlorodiphenyldichloroethylene, standard deviation; East_Greenland; East Greenland; International Polar Year (2007-2008); IPY; Oxychlordane; para,para-Dichlorodiphenyldichloroethylene; Polybrominated diphenyl ethers, congener BDE-47; Polybrominated diphenyl ethers, standard deviation; Polychlorinated biphenyl, standard deviation; Polychlorinated biphenyl 138; Polychlorinated biphenyl 153; Polychlorinated biphenyl 156; Polychlorinated biphenyl 170; Polychlorinated biphenyl 180; Polychlorinated biphenyl 183; Polychlorinated biphenyl 187; Standard deviation; trans-Nonachlor |
| url | https://doi.org/10.1594/PANGAEA.807320 |