| DOI: | 10.1111/ele.13598
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| 论文题名: | Reduced phenotypic plasticity evolves in less predictable environments |
| 作者: | Leung C.; Rescan M.; Grulois D.; Chevin L.-M.
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| 刊名: | Ecology Letters
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| ISSN: | 1461023X
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| 出版年: | 2020
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| 卷: | 23, 期:11 | | 起始页码: | 1664
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| 结束页码: | 1672
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| 语种: | 英语
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| 中文关键词: | Dunaliella salina
; environmental stochasticity
; experimental evolution
; fluctuating environment
; Phenotypic plasticity
; predictability
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| 英文关键词: | climate change
; environmental change
; extinction risk
; microalga
; phenotypic plasticity
; population growth
; Dunaliella salina
; adaptation
; environment
; evolution
; phenotype
; population growth
; Adaptation, Physiological
; Biological Evolution
; Environment
; Phenotype
; Population Growth
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| 英文摘要: | Phenotypic plasticity is a prominent mechanism for coping with variable environments, and a key determinant of extinction risk. Evolutionary theory predicts that phenotypic plasticity should evolve to lower levels in environments that fluctuate less predictably, because they induce mismatches between plastic responses and selective pressures. However, this prediction is difficult to test in nature, where environmental predictability is not controlled. Here, we exposed 32 lines of the halotolerant microalga Dunaliella salina to ecologically realistic, randomly fluctuating salinity, with varying levels of predictability, for 500 generations. We found that morphological plasticity evolved to lower degrees in lines that experienced less predictable environments. Evolution of plasticity mostly concerned phases with slow population growth, rather than the exponential phase where microbes are typically phenotyped. This study underlines that long-term experiments with complex patterns of environmental change are needed to test theories about population responses to altered environmental predictability, as currently observed under climate change. © 2020 The Authors. Ecology Letters published by John Wiley & Sons Ltd. |
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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/166657
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| Appears in Collections: | 气候变化与战略
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作者单位: | CEFE, Université de Montpellier, CNRS, EPHE, IRD, Université Paul Valéry Montpellier 3, Montpellier, France
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| Recommended Citation: | |
Leung C.,Rescan M.,Grulois D.,et al. Reduced phenotypic plasticity evolves in less predictable environments[J]. Ecology Letters,2020-01-01,23(11)
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