Scopus记录号: 2-s2.0-85060972668
论文题名: Elevational differentiation accelerates trait evolution but not speciation rates in Amazonian birds
作者: Luzuriaga-Aveiga V.E. ; Weir J.T.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期: 4 起始页码: 624
结束页码: 633
语种: 英语
英文关键词: Amazon
; Andes
; diversification rates
; ecological speciation
; elevation
; passerine birds
; trait evolution
Scopus关键词: Aves
; Passeriformes
英文摘要: The importance of ecologically mediated divergent selection in accelerating trait evolution has been poorly studied in the most species-rich biome of the planet, the continental Neotropics. We performed macroevolutionary analyses of trait divergence and diversification rates across closely related pairs of Andean and Amazonian passerine birds, to assess whether the difference in elevational range separating species pairs – a proxy for the degree of ecological divergence – influences the speed of trait evolution and diversification rates. We found that elevational differentiation is associated with faster divergence of song frequency, a trait important for pre-mating isolation, and several morphological traits, which may contribute to extrinsic post-mating isolation. However, elevational differentiation did not increase recent speciation rates, possibly due to early bursts of diversification during the uplift of the eastern Andes followed by a slow-down in speciation rate. Our results suggest that ecological differentiation may speed up trait evolution, but not diversification of Neotropical birds. © 2019 John Wiley & Sons Ltd/CNRS 资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122714
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON M1C 1A4, Canada; Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada; Department of Ornithology, Royal Ontario Museum, 100 Queen's Park, Toronto, ON M5S 2C6, Canada
Recommended Citation:
Luzuriaga-Aveiga V.E.,Weir J.T.. Elevational differentiation accelerates trait evolution but not speciation rates in Amazonian birds[J]. Ecology Letters,2019-01-01,22(4)