The advertisement calls of three South American poison frogs (Amphibia: Anura: Dendrobatidae), with comments on their taxonomy and distribution

The advertisement calls of three species of dendrobatid frogs from Bolivia and Peru are described. For each species we present a characteristic audiospectogram and oscillogram. We also provide numerical information about the spectral and temporal features of the calls. Our recordings of these species are compared with previously described calls of the same species from other locations. Comparisons between the calls of three different populations of Colostethus from Peru and Bolivia support their conspecificity. Characteristics of the call of a Peruvian population of Epipedobates differ from those of E. hahneli, suggesting that further taxonomic research is needed. The distribution of the genus Colostethus and Epipedobates in Bolivia is reassessed.