DOI: 10.1111/ele.12438
Scopus记录号: 2-s2.0-84934177871
论文题名: Relative roles of ecological and energetic constraints, diversification rates and region history on global species richness gradients
作者: Belmaker J. ; Jetz W.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 6 起始页码: 563
结束页码: 571
语种: 英语
英文关键词: Birds
; Diversification rate
; Diversity
; Functional diversity
; Mammals
; Species traits
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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107872
Appears in Collections: 气候减缓与适应
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作者单位: Department of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel; Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, United States
Recommended Citation:
Belmaker J.,Jetz W.. Relative roles of ecological and energetic constraints, diversification rates and region history on global species richness gradients[J]. Ecology Letters,2015-01-01,18(6)