Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326937
Type: Artigo
Title: Into The Andes: Multiple Independent Colonizations Drive Montane Diversity In The Neotropical Clearwing Butterflies Godyridina
Author: Chazot
Nicolas; Willmott
Keith R.; Condamine
Fabien L.; De-Silva
Donna Lisa; Freitas
Andre V. L.; Lamas
Gerardo; Morlon
Helene; Giraldo
Carlos E.; Jiggins
Chris D.; Joron
Mathieu; Mallet
James; Uribe
Sandra; Elias
Marianne
Abstract: Understanding why species richness peaks along the Andes is a fundamental question in the study of Neotropical biodiversity. Several biogeographic and diversification scenarios have been proposed in the literature, but there is confusion about the processes underlying each scenario, and assessing their relative contribution is not straightforward. Here, we propose to refine these scenarios into a framework which evaluates four evolutionary mechanisms: higher speciation rate in the Andes, lower extinction rates in the Andes, older colonization times and higher colonization rates of the Andes from adjacent areas. We apply this framework to a species-rich subtribe of Neotropical butterflies whose diversity peaks in the Andes, the Godyridina (Nymphalidae: Ithomiini). We generated a time-calibrated phylogeny of the Godyridina and fitted time-dependent diversification models. Using trait-dependent diversification models and ancestral state reconstruction methods we then compared different biogeographic scenarios. We found strong evidence that the rates of colonization into the Andes were higher than the other way round. Those colonizations and the subsequent local diversification at equal rates in the Andes and in non-Andean regions mechanically increased the species richness of Andean regions compared to that of non-Andean regions ('species-attractor' hypothesis). We also found support for increasing speciation rates associated with Andean lineages. Our work highlights the importance of the Andean slopes in repeatedly attracting non-Andean lineages, most likely as a result of the diversity of habitats and/or host plants. Applying this analytical framework to other clades will bring important insights into the evolutionary mechanisms underlying the most species-rich biodiversity hotspot on the planet.
Subject: Andes
Biogeography
Godyridina
Ithomiini
Lepidoptera
Neotropics Trait-dependent Diversification
Editor: Wiley-Blackwell
Hoboken
Rights: fechado
Identifier DOI: 10.1111/mec.13773
Address: http://onlinelibrary.wiley.com/doi/10.1111/mec.13773/abstract
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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