气候变化领域集成服务门户(CCPortal): Equilibrium and non-equilibrium dynamics simultaneously operate in the Galápagos islands

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DOI	10.1111/ele.12461
	Equilibrium and non-equilibrium dynamics simultaneously operate in the Galápagos islands
	Valente L.M.; Phillimore A.B.; Etienne R.S.
发表日期	2015
ISSN	1461-023X
EISSN	1461-0248
卷号	18 期号:8
英文摘要	Island biotas emerge from the interplay between colonisation, speciation and extinction and are often the scene of spectacular adaptive radiations. A common assumption is that insular diversity is at a dynamic equilibrium, but for remote islands, such as Hawaii or Galápagos, this idea remains untested. Here, we reconstruct the temporal accumulation of terrestrial bird species of the Galápagos using a novel phylogenetic method that estimates rates of biota assembly for an entire community. We show that species richness on the archipelago is in an ascending phase and does not tend towards equilibrium. The majority of the avifauna diversifies at a slow rate, without detectable ecological limits. However, Darwin's finches form an exception: they rapidly reach a carrying capacity and subsequently follow a coalescent-like diversification process. Together, these results suggest that avian diversity of remote islands is rising, and challenge the mutual exclusivity of the non-equilibrium and equilibrium ecological paradigms. © 2015 John Wiley & Sons Ltd/CNRS.
英文关键词	Community assembly; Diversification; Dynamic equilibrium; Island biogeography; Phylogeny
学科领域	adaptive radiation; avifauna; bird; community structure; evolutionary biology; island biogeography; phylogeny; speciation (biology); species richness; Ecuador; Galapagos Islands; Aves; Fringillidae; animal; biological model; biota; bird; classification; Ecuador; evolution; island (geological); phylogeny; statistical model; Animals; Biological Evolution; Biota; Birds; Ecuador; Islands; Likelihood Functions; Models, Genetic; Phylogeny
语种	英语
scopus关键词	adaptive radiation; avifauna; bird; community structure; evolutionary biology; island biogeography; phylogeny; speciation (biology); species richness; Ecuador; Galapagos Islands; Aves; Fringillidae; animal; biological model; biota; bird; classification; Ecuador; evolution; island (geological); phylogeny; statistical model; Animals; Biological Evolution; Biota; Birds; Ecuador; Islands; Likelihood Functions; Models, Genetic; 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/118662
作者单位	Unit of Evolutionary Biology/Systematic Zoology, Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, Haus 26, Potsdam, D-14476, Germany; Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, EH9 3JT, United Kingdom; Groningen Institute for Evolutionary Life Sciences, University of Groningen, PO Box 11103, Groningen, 9700 CC, Netherlands
推荐引用方式 GB/T 7714	Valente L.M.,Phillimore A.B.,Etienne R.S.. Equilibrium and non-equilibrium dynamics simultaneously operate in the Galápagos islands[J],2015,18(8).
APA	Valente L.M.,Phillimore A.B.,&Etienne R.S..(2015).Equilibrium and non-equilibrium dynamics simultaneously operate in the Galápagos islands.Ecology Letters,18(8).
MLA	Valente L.M.,et al."Equilibrium and non-equilibrium dynamics simultaneously operate in the Galápagos islands".Ecology Letters 18.8(2015).