DOI: 10.1111/ele.12563
Scopus记录号: 2-s2.0-84954542587
论文题名: The effects of asymmetric competition on the life history of Trinidadian guppies
作者: Bassar R.D. ; Childs D.Z. ; Rees M. ; Tuljapurkar S. ; Reznick D.N. ; Coulson T.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 3 起始页码: 268
结束页码: 278
语种: 英语
英文关键词: Asymmetrical competition
; Contest competition
; Integral projection model
; Interaction surface
; Mesocosm
; Scramble competition
; Symmetrical competition
Scopus关键词: asymmetric competition
; contest competition
; demography
; density dependence
; life history trait
; mesocosm
; reproductive success
; scramble competition
; size structure
; symmetry
; teleost
; animal
; biological model
; competitive behavior
; female
; physiology
; Poecilia
; population dynamics
; Animals
; Competitive Behavior
; Female
; Models, Biological
; Poecilia
; Population Dynamics
英文摘要: The effects of asymmetric interactions on population dynamics has been widely investigated, but there has been little work aimed at understanding how life history parameters like generation time, life expectancy and the variance in lifetime reproductive success are impacted by different types of competition. We develop a new framework for incorporating trait-mediated density-dependence into size-structured models and use Trinidadian guppies to show how different types of competitive interactions impact life history parameters. Our results show the degree of symmetry in competitive interactions can have dramatic effects on the speed of the life history. For some vital rates, shifting the competitive superiority from small to large individuals resulted in a doubling of the generation time. Such large influences of competitive symmetry on the timescale of demographic processes, and hence evolution, highlights the interwoven nature of ecological and evolutionary processes and the importance of density-dependence in understanding eco-evolutionary dynamics. © 2016 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/107790
Appears in Collections: 气候减缓与适应
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作者单位: Department of Zoology, University of Oxford, South Parks Road, Oxford, United Kingdom; Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom; Department of Biology, Stanford University, Palo Alto, CA, United States; Department of Biology, University of California, Riverside, CA, United States
Recommended Citation:
Bassar R.D.,Childs D.Z.,Rees M.,et al. The effects of asymmetric competition on the life history of Trinidadian guppies[J]. Ecology Letters,2016-01-01,19(3)