| Density-dependent diversification in North American wood warblers. | |
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MedLine Citation:
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PMID: 18611849 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Evidence from both molecular phylogenies and the fossil record suggests that rates of species diversification often decline through time during evolutionary radiations. One proposed explanation for this pattern is ecological opportunity, whereby an initial abundance of resources and lack of potential competitors facilitate rapid diversification. This model predicts density-dependent declines in diversification rates, but has not been formally tested in any species-level radiation. Here we develop a new conceptual framework that distinguishes density dependence from alternative processes that also produce temporally declining diversification, and we demonstrate this approach using a new phylogeny of North American Dendroica wood warblers. We show that explosive lineage accumulation early in the history of this avian radiation is best explained by a density-dependent diversification process. Our results suggest that the tempo of wood warbler diversification was mediated by ecological interactions among species and that lineage and ecological diversification in this group are coupled, as predicted under the ecological opportunity model. |
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Authors:
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Daniel L Rabosky; Irby J Lovette |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Proceedings. Biological sciences / The Royal Society Volume: 275 ISSN: 0962-8452 ISO Abbreviation: Proc. Biol. Sci. Publication Date: 2008 Oct |
Date Detail:
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Created Date: 2008-09-10 Completed Date: 2008-11-18 Revised Date: 2010-09-21 |
Medline Journal Info:
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Nlm Unique ID: 101245157 Medline TA: Proc Biol Sci Country: England |
Other Details:
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Languages: eng Pagination: 2363-71 Citation Subset: IM |
Affiliation:
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Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA. dlr32@cornell.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Biodiversity DNA, Mitochondrial / chemistry, genetics Evolution, Molecular* Genetic Speciation* Mitochondrial Proteins / chemistry, genetics Models, Genetic* Nuclear Proteins / chemistry, genetics Phylogeny* Polymerase Chain Reaction Population Density* Sequence Analysis, Protein Songbirds / genetics* |
| Chemical | |
Reg. No./Substance:
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0/DNA, Mitochondrial; 0/Mitochondrial Proteins; 0/Nuclear Proteins |
| Comments/Corrections | |
Comment In:
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Proc Biol Sci. 2009 Mar 22;276(1659):993-4; discussion 995-7
[PMID:
19129112
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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