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Methow River Studies, Washington: abundance estimates from Beaver Creek and the Chewuch River screw trap, methodology testing in the Whitefish Island side channel, and survival and detection estimates from hatchery fish releases, 2013 科技报告
来源:US Geological Survey (USGS). 出版年: 2014
作者:  [null]
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/05
Population viability and connectivity of the Louisiana black bear (Ursus americanus luteolus) 科技报告
来源:US Geological Survey (USGS). 出版年: 2014
作者:  [null]
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/05