气候变化领域集成服务门户(CCPortal): Species are not most abundant in the centre of their geographic range or climatic niche

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DOI	10.1111/ele.12860
	Species are not most abundant in the centre of their geographic range or climatic niche
	Dallas T.; Decker R.R.; Hastings A.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:12
英文摘要	The pervasive idea that species should be most abundant in the centre of their geographic range or centre of their climatic niche is a key assumption in many existing ecological hypotheses and has been declared a general macroecological rule. However, empirical support for decreasing population abundance with increasing distance from geographic range or climatic niche centre (distance–abundance relationships) remains fairly weak. We examine over 1400 bird, mammal, fish and tree species to provide a thorough test of distance–abundance relationships, and their associations with species traits and phylogenetic relationships. We failed to detect consistent distance–abundance relationships, and found no association between distance–abundance slope and species traits or phylogenetic relatedness. Together, our analyses suggest that distance–abundance relationships may be rare, difficult to detect, or are an oversimplification of the complex biogeographical forces that determine species spatial abundance patterns. © 2017 John Wiley & Sons Ltd/CNRS
英文关键词	Abundant-centre hypothesis; climatic niche; eBird; Forest Inventory and Analysis; geographic range; macroecology
学科领域	Aves; Mammalia; animal; bird; ecosystem; fish; mammal; phylogeny; Animals; Birds; Ecosystem; Fishes; Mammals; Phylogeny
语种	英语
scopus关键词	Aves; Mammalia; animal; bird; ecosystem; fish; mammal; phylogeny; Animals; Birds; Ecosystem; Fishes; Mammals; Phylogeny
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/118301
作者单位	Center for Population Biology, University of California, Davis, CA 95616, United States; Department of Environmental Science and Policy, University of California, Davis, CA 95616, United States
推荐引用方式 GB/T 7714	Dallas T.,Decker R.R.,Hastings A.. Species are not most abundant in the centre of their geographic range or climatic niche[J],2017,20(12).
APA	Dallas T.,Decker R.R.,&Hastings A..(2017).Species are not most abundant in the centre of their geographic range or climatic niche.Ecology Letters,20(12).
MLA	Dallas T.,et al."Species are not most abundant in the centre of their geographic range or climatic niche".Ecology Letters 20.12(2017).