Mean annual population growth rate and ratio change in abundance of common raven within level I ecoregions of the United States and Canada, 1966 - 2018
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These data identify the mean annual population growth rate and ratio change in abundance of common raven (Corvus corax; ravens) populations from 1966 through 2018.
本数据集记录了1966年至2018年间普通渡鸦（Corvus corax，以下简称渡鸦）种群的年平均增长率及其种群丰度的比值变化情况。
