气候变化领域集成服务门户(CCPortal): The effects of asymmetric competition on the life history of Trinidadian guppies

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DOI	10.1111/ele.12563
	The effects of asymmetric competition on the life history of Trinidadian guppies
	Bassar R.D.; Childs D.Z.; Rees M.; Tuljapurkar S.; Reznick D.N.; Coulson T.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:3
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.
英文关键词	Asymmetrical competition; Contest competition; Integral projection model; Interaction surface; Mesocosm; Scramble competition; Symmetrical competition
学科领域	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
语种	英语
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
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118580
作者单位	Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, 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
推荐引用方式 GB/T 7714	Bassar R.D.,Childs D.Z.,Rees M.,et al. The effects of asymmetric competition on the life history of Trinidadian guppies[J],2016,19(3).
APA	Bassar R.D.,Childs D.Z.,Rees M.,Tuljapurkar S.,Reznick D.N.,&Coulson T..(2016).The effects of asymmetric competition on the life history of Trinidadian guppies.Ecology Letters,19(3).
MLA	Bassar R.D.,et al."The effects of asymmetric competition on the life history of Trinidadian guppies".Ecology Letters 19.3(2016).