气候变化领域集成服务门户(CCPortal): Climate drives among-year variation in natural selection on flowering time

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DOI	10.1111/ele.13468
	Climate drives among-year variation in natural selection on flowering time
	Ehrlén J.; Valdés A.
发表日期	2020
ISSN	1461023X
英文摘要	To predict long-term responses to climate change, we need to understand how changes in temperature and precipitation elicit both immediate phenotypic responses and changes in natural selection. We used 22 years of data for the perennial herb Lathyrus vernus to examine how climate influences flowering phenology and phenotypic selection on phenology. Plants flowered earlier in springs with higher temperatures and higher precipitation. Early flowering was associated with a higher fitness in nearly all years, but selection for early flowering was significantly stronger in springs with higher temperatures and lower precipitation. Climate influenced selection through trait distributions, mean fitness and trait−fitness relationships, the latter accounting for most of the among-year variation in selection. Our results show that climate both induces phenotypic responses and alters natural selection, and that the change in the optimal phenotype might be either weaker, as for spring temperature, or stronger, as for precipitation, than the optimal response. © 2020 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
英文关键词	Climate; Lathyrus vernus; phenology; phenotypic plasticity; phenotypic selection; selection gradients; timing of reproduction
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120965
作者单位	Department of Ecology, Environment and Plant Sciences, Stockholm University, SE-106 91, Stockholm, Sweden; Bolin Centre of Climate Research, Stockholm University, Stockholm, Sweden
推荐引用方式 GB/T 7714	Ehrlén J.,Valdés A.. Climate drives among-year variation in natural selection on flowering time[J],2020.
APA	Ehrlén J.,&Valdés A..(2020).Climate drives among-year variation in natural selection on flowering time.Ecology Letters.
MLA	Ehrlén J.,et al."Climate drives among-year variation in natural selection on flowering time".Ecology Letters (2020).