Cascades frog (Rana cascadae) historical site surveys in the Oregon Cascade Range, 2018-2019

We used visual surveys to document the presence of all life stages of Cascades frog (Rana cascadae) at historically occupied sites. We surveyed 67 sites 1-2 times...本研究采用目视调查法，在历史分布点位记录了喀斯喀特蛙（Cascades frog，Rana cascadae）各生活史阶段的出现情况。本次共对67个点位开展1至2次调查……