气候变化领域集成服务门户(CCPortal): The evolution of niche overlap and competitive differences

CCPortal

DOI	10.1038/s41559-020-01383-y
	The evolution of niche overlap and competitive differences
	Pastore A.I.; Barabás G.; Bimler M.D.; Mayfield M.M.; Miller T.E.
发表日期	2021
ISSN	2397-334X
起始页码	330
结束页码	337
卷号	5 期号:3
英文摘要	Competition can result in evolutionary changes to coexistence between competitors but there are no theoretical models that predict how the components of coexistence change during this eco-evolutionary process. Here we study the evolution of the coexistence components, niche overlap and competitive differences, in a two-species eco-evolutionary model based on consumer–resource interactions and quantitative genetic inheritance. Species evolve along a one-dimensional trait axis that allows for changes in both niche position and species intrinsic growth rates. There are three main results. First, the breadth of the environment has a strong effect on the dynamics, with broader environments leading to reduced niche overlap and enhanced coexistence. Second, coexistence often involves a reduction in niche overlap while competitive differences stay relatively constant or vice versa; in general changes in competitive differences maintain coexistence only when niche overlap remains constant. Large simultaneous changes in niche overlap and competitive difference often result in one of the species being excluded. Third, provided that the species evolve to a state where they coexist, the final niche overlap and competitive difference values are independent of the system’s initial state, although they do depend on the model’s parameters. The model suggests that evolution is often a destructive force for coexistence due to evolutionary changes in competitive differences, a finding that expands the paradox of diversity maintenance. ? 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	phenotype; theoretical model; Models, Theoretical; Phenotype
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257014
作者单位	School of Biological Sciences, The University of Queensland, St Lucia, QLD, Australia; Department of Biological Science, Florida State University, Tallahassee, FL, United States; Division of Theoretical Biology, Department IFM, Link?ping University, Link?ping, Sweden; MTA-ELTE Theoretical Biology and Evolutionary Ecology Research Group, Budapest, Hungary
推荐引用方式 GB/T 7714	Pastore A.I.,Barabás G.,Bimler M.D.,et al. The evolution of niche overlap and competitive differences[J],2021,5(3).
APA	Pastore A.I.,Barabás G.,Bimler M.D.,Mayfield M.M.,&Miller T.E..(2021).The evolution of niche overlap and competitive differences.Nature Ecology & Evolution,5(3).
MLA	Pastore A.I.,et al."The evolution of niche overlap and competitive differences".Nature Ecology & Evolution 5.3(2021).