气候变化领域集成服务门户(CCPortal): Heterogeneity–diversity relationships in sessile organisms: a unified framework

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DOI	10.1111/ele.13418
	Heterogeneity–diversity relationships in sessile organisms: a unified framework
	Ben-Hur E.; Kadmon R.
发表日期	2020
ISSN	1461023X
卷号	23 期号:1
英文摘要	The hypothesis that environmental heterogeneity promotes species richness by increasing opportunities for niche partitioning is a fundamental paradigm in ecology. However, recent studies suggest that heterogeneity–diversity relationships (HDR) are more complex than expected from this niche-based perspective, and often show a decrease in richness at high levels of heterogeneity. These findings have motivated ecologists to propose new mechanisms that may explain such deviations. Here we provide an overview of currently recognised mechanisms affecting the shape of HDRs and present a conceptual model that integrates all previously proposed mechanisms within a unified framework. We also translate the proposed framework into an explicit community dynamic model and use the model as a tool for generating testable predictions concerning how landscape properties interact with species traits in determining the shape of HDRs. Our main finding is that, despite the enormous complexity of such interactions, the predicted HDRs are rather simple, ranging from positive to unimodal patterns in a highly consistent and predictable manner. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Compositional vs. configurational heterogeneity; conceptual model; dispersal; environmental heterogeneity; fragmentation; niche width; species richness
语种	英语
scopus关键词	dispersal; ecological modeling; heterogeneity; landscape ecology; niche partitioning; sessile species; species diversity; species richness; biodiversity; ecology; ecosystem; theoretical model; Biodiversity; Ecology; Ecosystem; Models, Theoretical
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/120976
作者单位	Department of Ecology, Evolution and Behavior, The Hebrew University of Jerusalem, Givat Ram, Jerusalem, 91904, Israel
推荐引用方式 GB/T 7714	Ben-Hur E.,Kadmon R.. Heterogeneity–diversity relationships in sessile organisms: a unified framework[J],2020,23(1).
APA	Ben-Hur E.,&Kadmon R..(2020).Heterogeneity–diversity relationships in sessile organisms: a unified framework.Ecology Letters,23(1).
MLA	Ben-Hur E.,et al."Heterogeneity–diversity relationships in sessile organisms: a unified framework".Ecology Letters 23.1(2020).