DOI: 10.1111/ele.12461
Scopus记录号: 2-s2.0-84946411449
论文题名: Equilibrium and non-equilibrium dynamics simultaneously operate in the Galápagos islands
作者: Valente L.M. ; Phillimore A.B. ; Etienne R.S.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 8 起始页码: 844
结束页码: 852
语种: 英语
英文关键词: Community assembly
; Diversification
; Dynamic equilibrium
; Island biogeography
; Phylogeny
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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107960
Appears in Collections: 气候减缓与适应
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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, Germany; Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, United Kingdom; Groningen Institute for Evolutionary Life Sciences, University of Groningen, PO Box 11103, Groningen, Netherlands
Recommended Citation:
Valente L.M.,Phillimore A.B.,Etienne R.S.. Equilibrium and non-equilibrium dynamics simultaneously operate in the Galápagos islands[J]. Ecology Letters,2015-01-01,18(8)