Ecological and faunistic characteristics of amphibians (Amphibia) of the Chuvash Republic

Data on the history of studying the fauna and ecology of amphibians in the Chuvash Republic are given. Currently, the taxonomic composition of amphibians in the region includes 11 species. The habitat of a species of hybridogenic origin - an edible frog and two cryptic forms - the «western» and «eastern» lake frogs, has been confirmed. Further research is needed on the geographic distribution of amphibians, parasite fauna, and amphibian food links in the region.