Evaluating and ranking threats to the long-term persistence of polar bears

GSTDTAP > 地球科学

DOI	10.3133/ofr20141254
报告编号	2014-1254
	Evaluating and ranking threats to the long-term persistence of polar bears
	[null]
	2015
出版年	2015
页数	124
语种	英语
国家	美国
出版者	U.S. Geological Survey
领域	资源环境;地球科学
英文摘要	The polar bear (Ursus maritimus) was listed as a globally threatened species under the U.S. Endangered Species Act (ESA) in 2008, mostly due to the significant threat to their future population viability from rapidly declining
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来源平台	US Geological Survey (USGS)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/9136
专题	地球科学资源环境科学
推荐引用方式 GB/T 7714	[null]. Evaluating and ranking threats to the long-term persistence of polar bears:U.S. Geological Survey,2015.