DOI: 10.1111/ele.12626
Scopus记录号: 2-s2.0-84973607416
论文题名: Environmental changes define ecological limits to species richness and reveal the mode of macroevolutionary competition
作者: Ezard T.H.G. ; Purvis A.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
语种: 英语
英文关键词: Beverton-Holt
; Contest competition
; Diversification
; Diversity-dependence
; Ecological limits
; Microfossil
; Ricker
; Scramble competition
Scopus关键词: animal
; biodiversity
; biological model
; classification
; climate
; ecosystem
; evolution
; foraminifer
; fossil
; genetics
; phylogeny
; Animals
; Biodiversity
; Biological Evolution
; Climate
; Ecosystem
; Foraminifera
; Fossils
; Models, Biological
; Phylogeny
; Foraminifera
英文摘要: Co-dependent geological and climatic changes obscure how species interact in deep time. The interplay between these environmental factors makes it hard to discern whether ecological competition exerts an upper limit on species richness. Here, using the exceptional fossil record of Cenozoic Era macroperforate planktonic foraminifera, we assess the evidence for alternative modes of macroevolutionary competition. Our models support an environmentally dependent macroevolutionary form of contest competition that yields finite upper bounds on species richness. Models of biotic competition assuming unchanging environmental conditions were overwhelmingly rejected. In the best-supported model, temperature affects the per-lineage diversification rate, while both temperature and an environmental driver of sediment accumulation defines the upper limit. The support for contest competition implies that incumbency constrains species richness by restricting niche availability, and that the number of macroevolutionary niches varies as a function of environmental changes. © 2016 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/107839
Appears in Collections: 气候减缓与适应
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作者单位: Ocean and Earth Sciences National Oceanography Centre Southampton University of Southampton Waterfront Campus Southampton SO14 3ZH UK; Centre for Biological Sciences University of Southampton Life Sciences Building 85 Highfield Campus Southampton SO17 1BJ UK; Department of Life Sciences Natural History Museum Cromwell Road London SW7 5BD UK; Department of Life Sciences Silwood Park Campus Imperial College London Ascot Berkshire SL5 7PY UK
Recommended Citation:
Ezard T.H.G.,Purvis A.. Environmental changes define ecological limits to species richness and reveal the mode of macroevolutionary competition[J]. Ecology Letters,2016-01-01