气候变化领域集成服务门户(CCPortal): Relative roles of ecological and energetic constraints, diversification rates and region history on global species richness gradients

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DOI	10.1111/ele.12438
	Relative roles of ecological and energetic constraints, diversification rates and region history on global species richness gradients
	Belmaker J.; Jetz W.
发表日期	2015
ISSN	1461-023X
EISSN	1461-0248
卷号	18 期号:6
英文摘要	Regions worldwide differ markedly in species richness. Here, for birds and mammals worldwide, we directly compare four sets of hypotheses regarding geographical richness gradients: (1) evolutionary, emphasising heterogeneity in diversification rates, (2) historical, related to differences in region ages and sizes, (3) energetic, associated with variation in productive or ambient energy and (4) ecological, reflecting differences in ecological niche diversity. Among highly independent regions, or 'evolutionary arenas', we find that richness is weakly influenced by richness-standardised ecological niche diversity, questioning the significance of ecological constraints for producing large-scale diversity gradients. In contrast, we find strong evidence for the importance of region area and its changes over time, together with a role for temperature. These predictors affect richness predominately directly without concomitant positive effects on diversification rates. This suggests that regional richness is governed by historical and evolutionary processes, which promote region-specific accumulation of diversity through time or following asymmetrical dispersal. © 2015 John Wiley & Sons Ltd/CNRS.
英文关键词	Birds; Diversification rate; Diversity; Functional diversity; Mammals; Species traits
学科领域	Aves; Mammalia; animal; biodiversity; biological model; bird; ecology; ecosystem; geography; mammal; phylogeny; procedures; Animals; Biodiversity; Birds; Ecology; Ecosystem; Geography; Mammals; Models, Biological; Phylogeny
语种	英语
scopus关键词	Aves; Mammalia; animal; biodiversity; biological model; bird; ecology; ecosystem; geography; mammal; phylogeny; procedures; Animals; Biodiversity; Birds; Ecology; Ecosystem; Geography; Mammals; Models, Biological; 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/118647
作者单位	Department of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 69978, Israel; Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, United States
推荐引用方式 GB/T 7714	Belmaker J.,Jetz W.. Relative roles of ecological and energetic constraints, diversification rates and region history on global species richness gradients[J],2015,18(6).
APA	Belmaker J.,&Jetz W..(2015).Relative roles of ecological and energetic constraints, diversification rates and region history on global species richness gradients.Ecology Letters,18(6).
MLA	Belmaker J.,et al."Relative roles of ecological and energetic constraints, diversification rates and region history on global species richness gradients".Ecology Letters 18.6(2015).