气候变化领域集成服务门户(CCPortal): Environmental changes define ecological limits to species richness and reveal the mode of macroevolutionary competition

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DOI	10.1111/ele.12626
	Environmental changes define ecological limits to species richness and reveal the mode of macroevolutionary competition
	Ezard T.H.G.; Purvis A.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:8
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.
英文关键词	Beverton–Holt; Contest competition; Diversification; Diversity-dependence; Ecological limits; Microfossil; Ricker; Scramble competition
学科领域	Foraminifera; animal; biodiversity; biological model; classification; climate; ecosystem; evolution; foraminifer; fossil; genetics; phylogeny; Animals; Biodiversity; Biological Evolution; Climate; Ecosystem; Foraminifera; Fossils; Models, Biological; Phylogeny
语种	英语
scopus关键词	Foraminifera; animal; biodiversity; biological model; classification; climate; ecosystem; evolution; foraminifer; fossil; genetics; phylogeny; Animals; Biodiversity; Biological Evolution; Climate; Ecosystem; Foraminifera; Fossils; 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/118519
作者单位	National Oceanography Centre Southampton, University of Southampton, Waterfront Campus, Southampton, SO14 3ZH, United Kingdom; Centre for Biological Sciences, University of Southampton, Life Sciences Building 85, Highfield Campus, Southampton, SO17 1BJ, United Kingdom; Department of Life Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom; Department of Life Sciences, Imperial College London, Silwood Park Campus, Ascot, Berkshire, SL5 7PY, United Kingdom
推荐引用方式 GB/T 7714	Ezard T.H.G.,Purvis A.. Environmental changes define ecological limits to species richness and reveal the mode of macroevolutionary competition[J],2016,19(8).
APA	Ezard T.H.G.,&Purvis A..(2016).Environmental changes define ecological limits to species richness and reveal the mode of macroevolutionary competition.Ecology Letters,19(8).
MLA	Ezard T.H.G.,et al."Environmental changes define ecological limits to species richness and reveal the mode of macroevolutionary competition".Ecology Letters 19.8(2016).