气候变化领域集成服务门户(CCPortal): Changes in the dominant assembly mechanism drive species loss caused by declining resources

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DOI	10.1111/ele.12548
	Changes in the dominant assembly mechanism drive species loss caused by declining resources
	Thorn S.; Bässler C.; Bernhardt-Römermann M.; Cadotte M.; Heibl C.; Schäfer H.; Seibold S.; Müller J.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:2
英文摘要	The species-energy hypothesis predicts that more productive areas support higher species richness. Conversely, when resources are reduced, species richness is reduced. Empirical tests of whether extinctions are predominantly caused by environmental constraints or competitive exclusion are lacking. We experimentally reduced dead wood to c. 15% of the initial amount after a major windstorm and examined changes in assembly mechanisms by combining trait-based and evolutionary species dissimilarities of eight taxonomic groups, differing in their dependence on dead wood (saproxylic/non-saproxylic). Species richness and assembly mechanisms of non-saproxylic taxa remained largely unaffected by removal of dead wood. By contrast, extinctions of saproxylic species were caused by reversing the predominant assembly mechanisms (e.g. increasing importance of competitive exclusion for communities assembled through environmental filtering or vice versa). We found no evidence for an intensification of the predominant assembly mechanism (e.g. competitive exclusion becoming stronger in a competitively structured community). Copyright © 2016 John Wiley & Sons Ltd/CNRS.
英文关键词	Dead wood ecology; Forest biodiversity; Functional traits; Phylogenetic diversity; Salvage logging; Saproxylic
学科领域	assembly rule; biodiversity; community structure; dead wood; ecosystem function; forest dynamics; logging (timber); phylogenetics; resource depletion; saproxylic organism; species richness
语种	英语
scopus关键词	assembly rule; biodiversity; community structure; dead wood; ecosystem function; forest dynamics; logging (timber); phylogenetics; resource depletion; saproxylic organism; species richness
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/118589
作者单位	Bavarian Forest National Park, Freyunger Str. 2, Grafenau, 94481, Germany; Department of Ecology and Ecosystem Management, Chair for Terrestrial Ecology, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, Freising, DE-85354, Germany; Institute of Ecology, Friedrich Schiller University Jena, Dornburger Str. 159, Jena, 07743, Germany; Department of Biological Sciences, University of Toronto-Scarborough, Toronto, Canada; Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada; State Key Laboratory of Biocontrol, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong, Higher Education Institutes, College of Ecology and Evolution, Sun Yat-sen University, Guangzhou, China; Plant Biodiversity, Department of Ecology and Ecosystem Management, Technische Universität München, Emil-Ramann Strasse 2, Freising, 85354, Germany
推荐引用方式 GB/T 7714	Thorn S.,Bässler C.,Bernhardt-Römermann M.,et al. Changes in the dominant assembly mechanism drive species loss caused by declining resources[J],2016,19(2).
APA	Thorn S..,Bässler C..,Bernhardt-Römermann M..,Cadotte M..,Heibl C..,...&Müller J..(2016).Changes in the dominant assembly mechanism drive species loss caused by declining resources.Ecology Letters,19(2).
MLA	Thorn S.,et al."Changes in the dominant assembly mechanism drive species loss caused by declining resources".Ecology Letters 19.2(2016).