气候变化领域集成服务门户(CCPortal): Birds advancing lay dates with warming springs face greater risk of chick mortality

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DOI	10.1073/pnas.2009864117
	Birds advancing lay dates with warming springs face greater risk of chick mortality
	Shipley J.R.; Twining C.W.; Taff C.C.; Vitousek M.N.; Flack A.; Winkler D.W.
发表日期	2020
ISSN	0027-8424
起始页码	25590
结束页码	25594
卷号	117 期号:41
英文摘要	In response to a warming planet with earlier springs, migratory animals are adjusting the timing of essential life stages. Although these adjustments may be essential for keeping pace with resource phenology, they may prove insufficient, as evidenced by population declines in many species. However, even when species can match the tempo of climate change, other consequences may emerge when exposed to novel conditions earlier in the year. Here, using three long-term datasets on bird reproduction, daily insect availability, and weather, we investigated the complex mechanisms affecting reproductive success in an aerial insectivore, the tree swallow (Tachycineta bicolor). By examining breeding records over nearly half a century, we discovered that tree swallows have continuously advanced their egg laying by ~3 d per decade. However, earlier-hatching offspring are now exposed to inclement weather events twice as often as they were in the 1970s. Our longterm daily insect biomass dataset shows no long-term trends over 25 y but precipitous drops in flying insect numbers on days with low ambient temperatures. Insect availability has a considerable impact on chick survival: Even a single inclement weather event can reduce offspring survival by >50%. Our results highlight the multifaceted threats that climate change poses on migrating species. The decoupling between cold snap occurrence and generally warming spring temperatures can affect reproductive success and threaten long-term persistence of populations. Understanding the exact mechanisms that endanger aerial insectivores is especially timely because this guild is experiencing the steepest and most widespread declines across North America and Europe. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Climate change; Climate variability; Life history; Migration
语种	英语
scopus关键词	animal experiment; article; biomass; breeding; chick; climate change; cold wave (weather); egg laying; environmental temperature; Europe; flying; hatching; insectivore; life history; mortality; nonhuman; North America; progeny; reproductive success; spring; tree swallow; warming; animal; insect; physiology; population migration; reproduction; season; swallow (bird); temperature; Animal Migration; Animals; Climate Change; Insecta; Reproduction; Seasons; Swallows; Temperature
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160764
作者单位	Shipley, J.R., Department of Migration, Max Planck Institute of Animal Behavior, Radolfzell am Bodensee, 78315, Germany, Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, 78464, Germany, Department of Biology, University of Konstanz, Konstanz, 78464, Germany; Twining, C.W., Department of Migration, Max Planck Institute of Animal Behavior, Radolfzell am Bodensee, 78315, Germany, Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, 78464, Germany, Department of Biology, University of Konstanz, Konstanz, 78464, Germany, Limnological Institute, University of Konstanz, Konstanz, 78464, Germany; Taff, C.C., Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, United States, Laboratory of Ornithology, Cornell University, Ithaca, NY 14850, United States, Museum of Vertebrates, Cornell University, Ithaca, NY 14850, United States; Vitousek, M.N., Department of Ecology and Evolutionary Biology, Cornell Univ...
推荐引用方式 GB/T 7714	Shipley J.R.,Twining C.W.,Taff C.C.,et al. Birds advancing lay dates with warming springs face greater risk of chick mortality[J],2020,117(41).
APA	Shipley J.R.,Twining C.W.,Taff C.C.,Vitousek M.N.,Flack A.,&Winkler D.W..(2020).Birds advancing lay dates with warming springs face greater risk of chick mortality.Proceedings of the National Academy of Sciences of the United States of America,117(41).
MLA	Shipley J.R.,et al."Birds advancing lay dates with warming springs face greater risk of chick mortality".Proceedings of the National Academy of Sciences of the United States of America 117.41(2020).