Language: English with trilingual summary in English, German, and Spanish
The present study provides a first comprehensive analysis of amphibian diversity in Bolivia. Distribution and ecology of species as important components of biodiversity are analyzed. Special emphasis is put on montane forest regions along the eastern Andean slopes. Fieldwork in the respective regions was conducted during the rainy seasons 1997/98 and 1998/99. In addition, data from museum collections and the litera ture, as well as from the author's own investigations in 1994 were included in the analysis. An updated checklist of Bolivian amphibians is provided. The known and expected distributions in Bolivia's Departamentos and twelve defined ecoregions are given for all 200 species. Forty-five species are considered Bolivian endemics (= 22.5%). The provided checklist is annotated regarding taxonomic problems and miscellaneous notes. Eleutherodactylus peruvianus is deleted from the list, Eleutherodactylus dundeei is added, and Eleutherodactylus bisignatus is resurrected from synonymy. In addition, 61 species predicted to occur on Bolivian territory are listed.