气候变化领域集成服务门户(CCPortal): Habitat fragmentation and species diversity in competitive communities

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DOI	10.1111/ele.13450
	Habitat fragmentation and species diversity in competitive communities
	Rybicki J.; Abrego N.; Ovaskainen O.
发表日期	2020
ISSN	1461023X
卷号	23 期号:3
英文摘要	Habitat loss is one of the key drivers of the ongoing decline of biodiversity. However, ecologists still argue about how fragmentation of habitat (independent of habitat loss) affects species richness. The recently proposed habitat amount hypothesis posits that species richness only depends on the total amount of habitat in a local landscape. In contrast, empirical studies report contrasting patterns: some find positive and others negative effects of fragmentation per se on species richness. To explain this apparent disparity, we devise a stochastic, spatially explicit model of competitive species communities in heterogeneous habitats. The model shows that habitat loss and fragmentation have complex effects on species diversity in competitive communities. When the total amount of habitat is large, fragmentation per se tends to increase species diversity, but if the total amount of habitat is small, the situation is reversed: fragmentation per se decreases species diversity. © 2019 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
英文关键词	Fragmentation; habitat loss; individual-based models; metacommunity theory; simulation model; spatial models; species richness
语种	英语
scopus关键词	biodiversity; ecosystem; longitudinal study; Biodiversity; Ecosystem; Longitudinal Studies
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/120932
作者单位	Institute of Science and Technology Austria (IST Austria), Am Campus 1, Klosterneuburg, 3400, Austria; Department of Agricultural Sciences, University of Helsinki, PO Box 27, Helsinki, FI-00014, Finland; Oragnismal and Evolutionary Biology Research Programme, University of Helsinki, PO Box 65, Helsinki, FI-00014, Finland
推荐引用方式 GB/T 7714	Rybicki J.,Abrego N.,Ovaskainen O.. Habitat fragmentation and species diversity in competitive communities[J],2020,23(3).
APA	Rybicki J.,Abrego N.,&Ovaskainen O..(2020).Habitat fragmentation and species diversity in competitive communities.Ecology Letters,23(3).
MLA	Rybicki J.,et al."Habitat fragmentation and species diversity in competitive communities".Ecology Letters 23.3(2020).