Article
Latitudinal variation in subspecific diversification of birds.
Evolution; international journal of organic evolution - 1 Nov 2008
Martin Paul R, Tewksbury Joshua J
Abstract excerpt
Patterns of evolution are believed to vary latitudinally, but our understanding of this variation remains limited. Here we examine how patterns of subspecific diversification vary within species of birds, specifically addressing three questions: (1) Are subspecies more numerous at lower latitudes within species, consistent with greater phenotypic differentiation at lower latitudes? (2) If there are more...
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