globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12911
Scopus记录号: 2-s2.0-85040740171
论文题名:
Eating down the food chain: generalism is not an evolutionary dead end for herbivores
作者: Rojas D.; Ramos Pereira M.J.; Fonseca C.; Dávalos L.M.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期:3
起始页码: 402
结束页码: 410
语种: 英语
英文关键词: Bayesian phylogenetic mixed models ; macroevolution ; Noctilionoidea ; path-wise rates ; specialisation ; speciation ; trophic level ; variable-rates model
英文摘要: The role of trophic specialisation in taxonomic diversification remains unclear. Plant specialists diversify faster than omnivores and animalivores, but at shorter macroevolutionary scales this pattern sometimes reverses. Here, we estimate the effect of diet diversification on speciation rates in noctilionoid bats, controlling for tree shape, rate heterogeneity and macroevolutionary regimes. We hypothesise that niche subdivision among herbivores positively relates to speciation rates, differing between macroevolutionary regimes. We found the rate at which new herbivorous lineages originate decreases as rates of diet evolution increase. Herbivores experience higher speciation rates, but generalist herbivores and predominantly herbivorous omnivores speciate faster than specialised herbivores, omnivores and animalivores. Generalised herbivory is not a dead end. We show that analysing ecological traits and diversification requires accounting for macroevolutionary regimes and within- and between-clade variation in evolutionary rates. Our approach overcomes the high false-positive rates of other methods and illuminates the roles of herbivory and specialisation in speciation. © 2018 John Wiley & Sons Ltd/CNRS
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107492
Appears in Collections:气候减缓与适应

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作者单位: Department of Natural Sciences and Mathematics, Pontificia Universidad Javeriana Cali, Colombia; Department of Biology and Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal; Institute of Biosciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Department of Ecology and Evolution, Stony Brook University, 650 Life Sciences Building, Stony Brook, NY, United States; Consortium for Inter-Disciplinary Environmental Research, School of Marine and Atmospheric Sciences, Stony Brook University, 129 Dana Hall, Stony Brook, NY, United States

Recommended Citation:
Rojas D.,Ramos Pereira M.J.,Fonseca C.,et al. Eating down the food chain: generalism is not an evolutionary dead end for herbivores[J]. Ecology Letters,2018-01-01,21(3)
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