Data from: Maintenance of local adaptation despite gene flow in a coastal songbird

Jonathan D. Clark, David A. Luther, Phred M. Benham, Jesus E. Maldonado & Haw Chuan Lim
Adaptation to local environments is common in widespread species and the basis of ecological speciation. The song sparrow (Melospiza melodia) is a widespread, polytypic passerine that occurs in shrubland habitats throughout North America. We examined the population structure of two parapatric subspecies that inhabit different environments: the Atlantic song sparrow (M. m. atlantica), a coastal specialist; and the eastern song sparrow (M. m. melodia), a shrubland generalist. These populations lacked clear mitochondrial population structure, yet...

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Affiliations

  • Museum of Vertebrate Zoology
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  • George Mason University
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  • Smithsonian Conservation Biology Institute
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