DOI: 10.1016/j.tree.2015.03.007
论文题名: The concept of fitness in fluctuating environments
作者: Sæther B.-E. ; Engen S.
刊名: Trends in Ecology and Evolution
ISSN: 1695347
出版年: 2015
卷: 30, 期: 5 起始页码: 273
结束页码: 281
语种: 英语
英文关键词: Bet-hedging
; Environmental stochasticity
; Fitness
; Phenotypic evolution
; Selection
Scopus关键词: climate change
; density dependence
; evolutionary biology
; fitness
; growth rate
; phenotypic plasticity
; population size
; adaptation
; environment
; evolution
; genetic selection
; phenotype
; population density
; reproductive fitness
; statistics
; theoretical model
; Adaptation, Biological
; Biological Evolution
; Environment
; Genetic Fitness
; Models, Theoretical
; Phenotype
; Population Density
; Selection, Genetic
; Stochastic Processes
英文摘要: Fitness is a central concept in evolutionary biology, but there is no unified definition. We review recent theoretical developments showing that including fluctuating environments and density dependence has important implications for how differences among phenotypes in their contributions to future generations should be quantified. The rate of phenotypic evolution will vary through time because of environmental stochasticity. Density dependence may produce fluctuating selection for large growth rates at low densities but for larger carrying capacities when population sizes are large. In general, including ecologically realistic assumptions when defining the concept of fitness is crucial for estimating the potential of evolutionary rescue of populations affected by environmental perturbations such as climate change. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67139
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Department of Biology, Centre for Biodiversity Dynamics, Norwegian University of Science and Technology, Trondheim, Norway; Department of Mathematical Sciences, Centre for Biodiversity Dynamics, Norwegian University of Science and Technology, Trondheim, Norway
Recommended Citation:
Sæther B.-E.,Engen S.. The concept of fitness in fluctuating environments[J]. Trends in Ecology and Evolution,2015-01-01,30(5)