BMC Ecology | |
Wind conditions on migration influence the annual survival of a neotropical migrant, the western yellow-breasted chat (Icteria virens auricollis) | |
Research Article | |
David J. Green1  Anna Drake2  René McKibbin3  Christine A. Bishop4  Andrew C. Huang4  | |
[1] Department of Biological Sciences, Center for Wildlife Ecology, Simon Fraser University, Burnaby, BC, Canada;Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, BC, Canada;Environment and Climate Change Canada, Delta, BC, Canada;Environment and Climate Change Canada, Delta, BC, Canada;Department of Biological Sciences, Center for Wildlife Ecology, Simon Fraser University, Burnaby, BC, Canada; | |
关键词: Climate conditions; Wind; Storm; Yellow-breasted chats; Neotropical migrants; Climate change; | |
DOI : 10.1186/s12898-017-0139-7 | |
received in 2017-03-28, accepted in 2017-08-02, 发布年份 2017 | |
来源: Springer | |
【 摘 要 】
BackgroundLong-distance migratory birds in North America have undergone precipitous declines over the past half-century. Although the trend is clear, for many migrating species underpinning the exact causes poses a challenge to conservation due to the numerous stressors that they encounter. Climate conditions during all phases of their annual cycle can have important consequences for their survival. Here, using 15 years of capture-recapture dataset, we determined the effects of various climate factors during the breeding, wintering, and migrating stages on the annual survival of a western yellow-breasted chat (Icteria virens auricollis) population breeding in southwestern Canada.ResultsEl Niño effects over the entire annual cycle had little influence on the annual apparent survival of yellow-breasted chats. However, we found evidence that wind conditions during migration, specifically average westerly wind speed or the frequency of storm events, had significant adverse effects on adult annual apparent survival. In comparison, precipitation levels on wintering ground had little to no influence on adult annual apparent survival, whereas growing degree days on the breeding ground had moderate but positive effects.ConclusionsIn the face of climate change and its predicted impacts on climate processes, understanding the influence of weather conditions on the survival of migrating birds can allow appropriate conservation strategies to be adopted for chats and other declining neotropical migrants.
【 授权许可】
CC BY
© The Author(s) 2017
【 预 览 】
Files | Size | Format | View |
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RO202311092305048ZK.pdf | 1407KB | download |
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