(Table 1) Concentration of pollutants in hair of East Greenland polar bears (...

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...本研究针对1892年至1927年、1988年至2009年两个时段采集自96头东格陵兰北极熊（Ursus maritimus）的毛发样本展开分析，以皮质醇（cortisol）作为替代标志物检测其水平，进而探究其时间变化模式……