Clade diversification dynamics and the biotic and abiotic controls of speciation and extinction rates
AffiliationUniv Arizona, Dept Ecol & Evolutionary Biol
MetadataShow full item record
PublisherNATURE PUBLISHING GROUP
CitationAguilée, Robin & Claessen, David & Lambert, Amaury. (2013). Adaptive radiation driven by the interplay of eco-evolutionary and landscape dynamics. Evolution; international journal of organic evolution. 67. 1291-306. 10.1111/evo.12008.
Rights© The Author(s) 2018. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License.
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AbstractHow ecological interactions, genetic processes, and environmental variability jointly shape the evolution of species diversity remains a challenging problem in biology. We developed an individual-based model of clade diversification to predict macroevolutionary dynamics when resource competition, genetic differentiation, and landscape fluctuations interact. Diversification begins with a phase of geographic adaptive radiation. Extinction rates rise sharply at the onset of the next phase. In this phase of niche self-structuring, speciation and extinction processes, albeit driven by biotic mechanisms (competition and hybridization), have essentially constant rates, determined primarily by the abiotic pace of landscape dynamics. The final phase of diversification begins when intense competition prevents dispersing individuals from establishing new populations. Species' ranges shrink, causing negative diversity-dependence of speciation rates. These results show how ecological and microevolutionary processes shape macroevolutionary dynamics and rates; they caution against the notion of ecological limits to diversity, and suggest new directions for the phylogenetic analysis of diversification.
VersionFinal published version
SponsorsCenter for Interdisciplinary Research in Biology (College de France); Centre National de la Recherche Scientifique (Mission pour l'Interdisciplinarite, Pepiniere de site PSL "Eco-Evo- Devo"); France Laboratory of Excellence "TULIP" [PIA-10-LABX-41]; France Laboratory of Excellence "MemoLife" [PIA-10-LABX-54]; Partner University Fund for ENS-University of Arizona cooperation
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