| Testing hypotheses of Pleistocene population history using coalescent simulations: phylogeography of the pygmy nuthatch (Sitta pygmaea). | |
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MedLine Citation:
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PMID: 17015345 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In this paper, we use mitochondrial NADH dehydrogenase subunit 2 sequences to test Pleistocene refugial hypotheses for the pygmy nuthatch (Sitta pygmaea). Pygmy nuthatches are a common resident of long-needle pine forests in western North America and demonstrate a particular affinity with ponderosa pine (Pinus ponderosa). Palaeoecological and genetic data indicate that ponderosa pine was isolated in two Pleistocene refugia corresponding to areas in the southern Sierra Nevada in the west and southern Arizona and New Mexico in the east. We use coalescent simulations to test the hypothesis that pygmy nuthatches tracked the Pleistocene history of their preferred habitat and persisted in two refugia during the periods of glacial maxima. Coalescent simulation of population history does not support the hypothesis of two Pleistocene refugia for the pygmy nuthatch. Instead, our data are consistent with a single refuge model. Nucleotide diversity is greatest in the western populations of southern and coastal California. We suggest that the pygmy nuthatch expanded from a far western glacial refuge into its current distribution since the most recent glacial maximum. |
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Authors:
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Garth M Spellman; John Klicka |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Proceedings. Biological sciences / The Royal Society Volume: 273 ISSN: 0962-8452 ISO Abbreviation: Proc. Biol. Sci. Publication Date: 2006 Dec |
Date Detail:
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Created Date: 2006-12-14 Completed Date: 2007-03-05 Revised Date: 2009-11-18 |
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: 3057-63 Citation Subset: IM |
Affiliation:
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Department of Biological Sciences, University of Nevada, Las Vegas, NV 89154, USA. garthspellman@bhsu.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Computer Simulation Ecosystem Geography* Mexico Models, Biological Passeriformes / classification*, genetics Phylogeny* Pinus ponderosa / classification, genetics Population Dynamics United States |
| Comments/Corrections | |
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