Origin and cross-century dynamics of an avian hybrid zone.

ABSTRACT:

Background

Characterizations of the dynamics of hybrid zones in space and time can give insights about traits and processes important in population divergence and speciation. We characterized a hybrid zone between tanagers in the genus Ramphocelus (Aves, Thraupidae) located in southwestern Colombia. We evaluated whether this hybrid zone originated as a result of secondary contact or of primary differentiation, and described its dynamics across time using spatial analyses of molecular, morphological, and coloration data in combination with paleodistribution modeling.

Results

Models of potential historical distributions based on climatic data and genetic signatures of demographic expansion suggested that the hybrid zone likely originated following secondary contact between pop

SUBMITTER: Morales-Rozo A 

PROVIDER: S-EPMC5732383 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature