气候变化领域集成服务门户(CCPortal): (Table 1) Concentration of pollutants in hair of East Greenland polar bears (Ursus maritimus)

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DOI	https://doi.org/10.1594/PANGAEA.807320
	(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
发布日期	2012-02-15
数据集类型	dataset
英文简介	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.
空间范围	Latitude: 74.000000 * Longitude: -20.000000
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/217596
推荐引用方式 GB/T 7714	Bechshøft,Thea Ø,Rigét,et al. (Table 1) Concentration of pollutants in hair of East Greenland polar bears (Ursus maritimus).2012-02-15.https://doi.org/10.1594/PANGAEA.807320.