Grizzly Bear Space Use in the US Northern Rocky Mountains (ver. 3.0, July 2024)
收藏data.gov2025-12-20 收录
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Over the past two centuries, persecution and habitat loss caused grizzly bears (Ursus arctos) to decline from a population of approximately 50,000 individuals to only...
在过去两个世纪中，人为迫害与栖息地丧失导致灰熊（Ursus arctos）的种群数量从约5万只锐减至仅……
