Divergence of acoustic signals in a widely distributed frog: relevance of inter-male interactions.

ABSTRACT: Divergence of acoustic signals in a geographic scale results from diverse evolutionary forces acting in parallel and affecting directly inter-male vocal interactions among disjunct populations. Pleurodema thaul is a frog having an extensive latitudinal distribution in Chile along which males' advertisement calls exhibit an important variation. Using the playback paradigm we studied the evoked vocal responses of males of three populations of P. thaul in Chile, from northern, central and southern distribution. In each population, males were stimulated with standard synthetic calls having the acoustic structure of local and foreign populations. Males of both northern and central populations displayed strong vocal responses when were confronted with the synthetic call of their own populations,

SUBMITTER: Velasquez NA 

PROVIDER: S-EPMC3905042 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature