气候变化领域集成服务门户(CCPortal): Understanding the emergence of contingent and deterministic exclusion in multispecies communities

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DOI	10.1111/ele.13846
	Understanding the emergence of contingent and deterministic exclusion in multispecies communities
	Song C.; Uricchio L.H.; Mordecai E.A.; Saavedra S.
发表日期	2021
ISSN	1461023X
英文摘要	Competitive exclusion can be classified as deterministic or as historically contingent. While competitive exclusion is common in nature, it has remained unclear when multispecies communities formed by more than two species should be dominated by deterministic or contingent exclusion. Here, we take a fully parameterised model of an empirical competitive system between invasive annual and native perennial plant species to explain both the emergence and sources of competitive exclusion in multispecies communities. Using a structural approach to understand the range of parameters promoting deterministic and contingent exclusions, we then find heuristic theoretical support for the following three general conclusions. First, we find that the life-history of perennial species increases the probability of observing contingent exclusion by increasing their effective intrinsic growth rates. Second, we find that the probability of observing contingent exclusion increases with weaker intraspecific competition, and not with the level of hierarchical competition. Third, we find a shift from contingent exclusion to deterministic exclusion with increasing numbers of competing species. Our work provides a heuristic framework to increase our understanding about the predictability of species persistence within multispecies communities. © 2021 John Wiley & Sons Ltd.
关键词	competitive exclusion contingent exclusion deterministic exclusion ecological communities structural stability
语种	英语
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/204491
作者单位	Department of Civil and Environmental Engineering, MIT, Cambridge, MA, United States; Department of Biology, McGill University, Montreal, Canada; Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada; Department of Integrative Biology, University of California, Berkeley, Berkeley, CA, United States; Biology Department, Stanford University, Stanford, CA, United States; Department of Biology, Tufts University, Medford, MA, United States
推荐引用方式 GB/T 7714	Song C.,Uricchio L.H.,Mordecai E.A.,et al. Understanding the emergence of contingent and deterministic exclusion in multispecies communities[J],2021.
APA	Song C.,Uricchio L.H.,Mordecai E.A.,&Saavedra S..(2021).Understanding the emergence of contingent and deterministic exclusion in multispecies communities.Ecology Letters.
MLA	Song C.,et al."Understanding the emergence of contingent and deterministic exclusion in multispecies communities".Ecology Letters (2021).