Geographic variation in hybridization across a reinforcement contact zone of chorus frogs (Pseudacris).

ABSTRACT: Reinforcement contact zones, which are secondary contact zones where species are diverging in reproductive behaviors due to selection against hybridization, represent natural laboratories for studying speciation-in-action. Here, we examined replicate localities across the entire reinforcement contact zone between North American chorus frogs Pseudacris feriarum and P. nigrita to investigate geographic variation in hybridization frequencies and to assess whether reinforcement may have contributed to increased genetic divergence within species. Previous work indicated these species have undergone reproductive character displacement (RCD) in male acoustic signals and female preferences due to reinforcement. We also examined acoustic signal variation across the contact zone to ass

SUBMITTER: Lemmon EM 

PROVIDER: S-EPMC5696400 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature