Long-term changes in the timing of autumn migration in Alaska’s boreal songbirds
April Harding Scurr,
Julie Hagelin,
Grey Pendleton
et al.
Abstract:Alaska's boreal birds face a rapidly changing environment, but we know little about shifts in migratory timing, particularly in autumn. We used quantile regression to quantify long-term changes in autumn capture date in 21 boreal passerines using 22+year datasets from two banding stations in central Alaska. We also quantified differences between sites and explored whether select climate indices during three periods of the annual cycle (breeding, post-fledge, and migration) could predict long-term changes in me… Show more
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