DOI: 10.1111/ele.13468
论文题名: Climate drives among-year variation in natural selection on flowering time
作者: Ehrlén J. ; Valdés A.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 4 起始页码: 653
结束页码: 662
语种: 英语
中文关键词: Climate
; Lathyrus vernus
; phenology
; phenotypic plasticity
; phenotypic selection
; selection gradients
; timing of reproduction
英文关键词: annual variation
; ecophysiology
; environmental gradient
; fitness
; flowering
; legume
; natural selection
; phenology
; phenotypic plasticity
; temperature effect
; Lathyrus vernus
; climate change
; flower
; genetic selection
; phenotype
; reproduction
; season
; temperature
; Climate Change
; Flowers
; Phenotype
; Reproduction
; Seasons
; Selection, Genetic
; Temperature
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166616
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Ehrlén J.,Valdés A.. Climate drives among-year variation in natural selection on flowering time[J]. Ecology Letters,2020-01-01,23(4)