globalchange  > 气候变化事实与影响
Scopus记录号: 2-s2.0-85062711993
论文题名:
Smart is the new sexy: female mountain chickadees increase reproductive investment when mated to males with better spatial cognition
作者: Branch C.L.; Pitera A.M.; Kozlovsky D.Y.; Bridge E.S.; Pravosudov V.V.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
语种: 英语
英文关键词: Chickadee ; cognition ; fitness ; food caching ; parental investment ; reproduction ; spatial memory
英文摘要: Understanding the evolution of inter and intraspecific variation in cognitive abilities is one of the main goals in cognitive ecology. In scatter-caching species, spatial memory is critical for the recovery of food caches and overwinter survival, but its effects on reproduction are less clear. Better spatial cognition may improve pre-breeding condition allowing for earlier reproduction. Alternatively, when mated to males with better spatial memory, females may be able to invest more in reproduction which may allow increased offspring survival and hence higher fitness. Using wild food-caching mountain chickadees, we found that when environmental conditions were favourable for breeding, females mated to males with better spatial cognition laid larger clutches and fledged larger broods than females mated to males with worse cognitive performance. Our results support the hypothesis that females may increase their reproductive investment to gain indirect, genetic benefits when mated to high-quality males with better spatial cognitive abilities. © 2019 John Wiley & Sons Ltd/CNRS
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122757
Appears in Collections:气候变化事实与影响

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作者单位: Ecology, Evolution, and Conservation Biology Graduate Program, University of Nevada, Reno, NV, United States; Oklahoma Biological Survey, University of Oklahoma, Norman, OK, United States; Cornell Lab of Ornithology, Cornell University, 159 Sapsucker Woods Rd, Ithaca, NY 14850, United States; Department of Biology, University of Ottawa, 30 Marie-Curie Private, Ottawa, ON K1N 6N5, United States

Recommended Citation:
Branch C.L.,Pitera A.M.,Kozlovsky D.Y.,et al. Smart is the new sexy: female mountain chickadees increase reproductive investment when mated to males with better spatial cognition[J]. Ecology Letters,2019-01-01
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