| DOI: | 10.1111/ele.12614
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| Scopus记录号: | 2-s2.0-84974703395
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| 论文题名: | The spatial scale of local adaptation in a stochastic environment |
| 作者: | Hadfield J.D.
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| 刊名: | Ecology letters
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| ISSN: | 14610248
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| EISSN: | 1461-0248
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| 出版年: | 2016
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| 卷: | 19, 期:7 | | 起始页码: | 780
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| 结束页码: | 788
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| 语种: | 英语
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| 英文关键词: | Gene flow
; local adaptation
; phenotypic plasticity
; quantitative genetics
; stochastic environments
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| Scopus关键词: | adaptation
; biological model
; environment
; evolution
; gene flow
; phenotype
; Adaptation, Biological
; Biological Evolution
; Environment
; Gene Flow
; Models, Genetic
; Phenotype
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| 英文摘要: | The distribution of phenotypes in space will be a compromise between adaptive plasticity and local adaptation increasing the fit of phenotypes to local conditions and gene flow reducing that fit. Theoretical models on the evolution of quantitative characters on spatially explicit landscapes have only considered scenarios where optimum trait values change as deterministic functions of space. Here, these models are extended to include stochastic spatially autocorrelated aspects to the environment, and consequently the optimal phenotype. Under these conditions, the regression of phenotype on the environmental variable becomes steeper as the spatial scale on which populations are sampled becomes larger. Under certain deterministic models - such as linear clines - the regression is constant. The way in which the regression changes with spatial scale is informative about the degree of phenotypic plasticity, the relative scale of effective gene flow and the environmental dependency of selection. Connections to temporal models are discussed. © 2016 John Wiley & Sons Ltd/CNRS. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/107749
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
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| Recommended Citation: | |
Hadfield J.D.. The spatial scale of local adaptation in a stochastic environment[J]. Ecology letters,2016-01-01,19(7)
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