Advertisement Calls and Interspecific Variation in Hypsiboas cordobae and Hypsiboas pulchellus (Anura, Hylidae) from Central Argentina

Abstract

The work aims to expand knowledge of the advertisement calls of Hypsiboas pulchellus and Hypsiboas cordobae from central Argentina. We provide information on each species’ calling behaviour, and spectral and temporal features of the advertisement call. Both species presented a characteristic vocalization that allows their taxonomic identification. Discriminant analyses showed differences between the two species in study, with erroneous classification percentages lower than 20% (3.45% for H. cordobae and 2.5% for H. pulchellus). It could be inferred then that there is low intraspecific variability and high interspecific variation in calls.