DOI: 10.1111/ele.12465
Scopus记录号: 2-s2.0-84938953990
论文题名: Evolutionary rescue can be impeded by temporary environmental amelioration
作者: Hao Y.-Q. ; Brockhurst M.A. ; Petchey O.L. ; Zhang Q.-G.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 9 起始页码: 892
结束页码: 898
语种: 英语
英文关键词: Adaptation
; Demographic recovery
; Environmental change
; Evolutionary rescue
; Experimental evolution
; Microcosm
; Virus
; Warming
Scopus关键词: adaptation
; bacteriophage
; conservation genetics
; environmental change
; environmental management
; extinction risk
; global warming
; microcosm
; mutation
; population genetics
; population structure
; species conservation
; survival
; temperature effect
; temporal analysis
; virus
; adaptation
; bacteriophage
; environment
; evolution
; genetic selection
; genetics
; mutation
; physiology
; population density
; reproductive fitness
; species extinction
; temperature
; Adaptation, Biological
; Bacteriophages
; Biological Evolution
; Environment
; Extinction, Biological
; Genetic Fitness
; Mutation
; Population Density
; Selection, Genetic
; Temperature
英文摘要: Rapid evolutionary adaptation has the potential to rescue from extinction populations experiencing environmental changes. Little is known, however, about the impact of short-term environmental fluctuations during long-term environmental deterioration, an intrinsic property of realistic environmental changes. Temporary environmental amelioration arising from such fluctuations could either facilitate evolutionary rescue by allowing population recovery (a positive demographic effect) or impede it by relaxing selection for beneficial mutations required for future survival (a negative population genetic effect). We address this uncertainty in an experiment with populations of a bacteriophage virus that evolved under deteriorating conditions (gradually increasing temperature). Periodic environmental amelioration (short periods of reduced temperature) caused demographic recovery during the early phase of the experiment, but ultimately reduced the frequency of evolutionary rescue. These experimental results suggest that environmental fluctuations could reduce the potential of evolutionary rescue. © 2015 John Wiley & Sons Ltd/CNRS. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107868
Appears in Collections: 气候减缓与适应
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作者单位: Institute for Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, Zurich, Switzerland; State Key Laboratory of Earth Surface Processes and Resource Ecology, MOE Key Laboratory for Biodiversity Science and Ecological Engineering, Beijing Normal University, Beijing, China; Department of Biology, University of York, Wentworth Way, York, United Kingdom; Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
Recommended Citation:
Hao Y.-Q.,Brockhurst M.A.,Petchey O.L.,et al. Evolutionary rescue can be impeded by temporary environmental amelioration[J]. Ecology Letters,2015-01-01,18(9)