气候变化领域集成服务门户(CCPortal): Negative density dependence is stronger in resource-rich environments and diversifies communities when stronger for common but not rare species

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DOI	10.1111/ele.12603
	Negative density dependence is stronger in resource-rich environments and diversifies communities when stronger for common but not rare species
	Lamanna J.A.; Walton M.L.; Turner B.L.; Myers J.A.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:6
英文摘要	Conspecific negative density dependence is thought to maintain diversity by limiting abundances of common species. Yet the extent to which this mechanism can explain patterns of species diversity across environmental gradients is largely unknown. We examined density-dependent recruitment of seedlings and saplings and changes in local species diversity across a soil-resource gradient for 38 woody-plant species in a temperate forest. At both life stages, the strength of negative density dependence increased with resource availability, becoming relatively stronger for rare species during seedling recruitment, but stronger for common species during sapling recruitment. Moreover, negative density dependence appeared to reduce diversity when stronger for rare than common species, but increase diversity when stronger for common species. Our results suggest that negative density dependence is stronger in resource-rich environments and can either decrease or maintain diversity depending on its relative strength among common and rare species. © 2016 John Wiley & Sons Ltd/CNRS.
英文关键词	Density dependence; Diversity maintenance; Diversity-environment relationship; Janzen-Connell hypothesis; Natural enemies; Resource availability; Seedling and sapling recruitment; Species coexistence; Species relative abundance; Temperate forest
学科领域	biodiversity; forest; Missouri; population density; population dynamics; seedling; tree; Biodiversity; Forests; Missouri; Population Density; Population Dynamics; Seedlings; Trees
语种	英语
scopus关键词	biodiversity; forest; Missouri; population density; population dynamics; seedling; tree; Biodiversity; Forests; Missouri; Population Density; Population Dynamics; Seedlings; Trees
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/118538
作者单位	Department of Biology and Tyson Research Center, Washington University in St. Louis, St. Louis, MO 63130, United States; Smithsonian Tropical Research Institute, Ancon, Balboa, Apartado, 0843-03092, Panama
推荐引用方式 GB/T 7714	Lamanna J.A.,Walton M.L.,Turner B.L.,et al. Negative density dependence is stronger in resource-rich environments and diversifies communities when stronger for common but not rare species[J],2016,19(6).
APA	Lamanna J.A.,Walton M.L.,Turner B.L.,&Myers J.A..(2016).Negative density dependence is stronger in resource-rich environments and diversifies communities when stronger for common but not rare species.Ecology Letters,19(6).
MLA	Lamanna J.A.,et al."Negative density dependence is stronger in resource-rich environments and diversifies communities when stronger for common but not rare species".Ecology Letters 19.6(2016).