DOI: 10.1111/ele.12783
Scopus记录号: 2-s2.0-85020207090
论文题名: Extinction and time help drive the marine-terrestrial biodiversity gradient: is the ocean a deathtrap?
作者: Miller E.C. ; Wiens J.J.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 7 起始页码: 911
结束页码: 921
语种: 英语
英文关键词: Amniotes
; diversification rates
; extinction
; marine-terrestrial gradient
; species richness
; time-for-speciation
Scopus关键词: Amniota
; aquatic species
; biodiversity
; ecosystem
; phylogeny
; sea
; species differentiation
; species extinction
; time factor
; Aquatic Organisms
; Biodiversity
; Ecosystem
; Extinction, Biological
; Genetic Speciation
; Oceans and Seas
; Phylogeny
; Time Factors
英文摘要: The marine-terrestrial richness gradient is among Earth's most dramatic biodiversity patterns, but its causes remain poorly understood. Here, we analyse detailed phylogenies of amniote clades, paleontological data and simulations to reveal the mechanisms underlying low marine richness, emphasising speciation, extinction and colonisation. We show that differences in diversification rates (speciation minus extinction) between habitats are often weak and inconsistent with observed richness patterns. Instead, the richness gradient is explained by limited time for speciation in marine habitats, since all extant marine clades are relatively young. Paleontological data show that older marine invasions have consistently ended in extinction. Simulations show that marine extinctions help drive the pattern of young, depauperate marine clades. This role for extinction is not discernible from molecular phylogenies alone, and not predicted by most previously hypothesised explanations for this gradient. Our results have important implications for the marine-terrestrial biodiversity gradient, and studies of biodiversity gradients in general. © 2017 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/107607
Appears in Collections: 气候减缓与适应
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作者单位: Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, United States
Recommended Citation:
Miller E.C.,Wiens J.J.. Extinction and time help drive the marine-terrestrial biodiversity gradient: is the ocean a deathtrap?[J]. Ecology Letters,2017-01-01,20(7)