气候变化领域集成服务门户(CCPortal): Interspecific variation in conspecific negative density dependence can make species less likely to coexist

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DOI	10.1111/ele.13135
	Interspecific variation in conspecific negative density dependence can make species less likely to coexist
	Stump S.M.; Comita L.S.
发表日期	2018
ISSN	1461023X
卷号	21 期号:10
英文摘要	Conspecific negative density dependence (CNDD) is thought to promote plant species diversity. Theoretical studies showing the importance of CNDD often assumed that all species are equally susceptible to CNDD; however, recent empirical studies have shown species can differ greatly in their susceptibility to CNDD. Using a theoretical model, we show that interspecific variation in CNDD can dramatically alter its impact on diversity. First, if the most common species are the least regulated by CNDD, then the stabilising benefit of CNDD is reduced. Second, when seed dispersal is limited, seedlings that are susceptible to CNDD are at a competitive disadvantage. When parameterised with estimates of CNDD from a tropical tree community in Panama, our model suggests that the competitive inequalities caused by interspecific variation in CNDD may undermine many species’ ability to persist. Thus, our model suggests that variable CNDD may make communities less stable, rather than more stable. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Barro Colorado Island; conspecific negative density dependence; Janzen–Connell hypothesis; modern coexistence theory; plant–soil feedback; stochastic models; tropical forest
语种	英语
scopus关键词	Panama; seed dispersal; seedling; tree; tropic climate; Panama; Seed Dispersal; Seedlings; Trees; Tropical Climate
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/121245
作者单位	School of Forestry and Environmental Studies, Yale University, 195 Prospect Street, New Haven, CT 06511, United States; Smithsonian Tropical Research Institute Balboa, Ancón, Panama
推荐引用方式 GB/T 7714	Stump S.M.,Comita L.S.. Interspecific variation in conspecific negative density dependence can make species less likely to coexist[J],2018,21(10).
APA	Stump S.M.,&Comita L.S..(2018).Interspecific variation in conspecific negative density dependence can make species less likely to coexist.Ecology Letters,21(10).
MLA	Stump S.M.,et al."Interspecific variation in conspecific negative density dependence can make species less likely to coexist".Ecology Letters 21.10(2018).