气候变化领域集成服务门户(CCPortal): Evolution of resource specialisation in competitive metacommunities

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DOI	10.1111/ele.13338
	Evolution of resource specialisation in competitive metacommunities
	Wickman J.; Diehl S.; Brännström Å.
发表日期	2019
ISSN	1461023X
卷号	22 期号:11
英文摘要	Spatial environmental heterogeneity coupled with dispersal can promote ecological persistence of diverse metacommunities. Does this premise hold when metacommunities evolve? Using a two-resource competition model, we studied the evolution of resource-uptake specialisation as a function of resource type (substitutable to essential) and shape of the trade-off between resource uptake affinities (generalist- to specialist-favouring). In spatially homogeneous environments, evolutionarily stable coexistence of consumers is only possible for sufficiently substitutable resources and specialist-favouring trade-offs. Remarkably, these same conditions yield comparatively low diversity in heterogeneous environments, because they promote sympatric evolution of two opposite resource specialists that, together, monopolise the two resources everywhere. Consumer diversity is instead maximised for intermediate trade-offs and clearly substitutable or clearly essential resources, where evolved metacommunities are characterised by contrasting selection regimes. Taken together, our results present new insights into resource-competition-mediated evolutionarily stable diversity in homogeneous and heterogeneous environments, which should be applicable to a wide range of systems. © 2019 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
英文关键词	Adaptive dynamics; coexistence; consumer–resource interactions; ESS; spatial models
语种	英语
scopus关键词	biological model; ecology; ecosystem; evolution; population dynamics; specialization; Biological Evolution; Ecology; Ecosystem; Models, Biological; Population Dynamics; Specialization
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/121028
作者单位	Integrated Science Lab, Department of Mathematics and Mathematical Statistics, Umeå University, Umeå, SE-90187, Sweden; Integrated Science Lab, Department of Ecology and Environmental Science, Umeå University, Umeå, SE-90187, Sweden; Evolution and Ecology Program, International Institute for Applied Systems Analysis (IIASA), Schlossplatz, Laxenburg, 12361, Austria
推荐引用方式 GB/T 7714	Wickman J.,Diehl S.,Brännström Å.. Evolution of resource specialisation in competitive metacommunities[J],2019,22(11).
APA	Wickman J.,Diehl S.,&Brännström Å..(2019).Evolution of resource specialisation in competitive metacommunities.Ecology Letters,22(11).
MLA	Wickman J.,et al."Evolution of resource specialisation in competitive metacommunities".Ecology Letters 22.11(2019).