New data on the distribution of Pallas's spadefoot toad ( (Pallas, 1771)) and fire-bellied toad ( L., 1761) (Anura, Amphibia) on the territory of the Saratov region and adjacent territories

Abstract

New data on the geographical distribution of Pelobates vespertinus and Bombina bombina in the Saratov region and adjacent districts of the Volgograd, Voronezh, Penza and Ulyanovsk regions are presented. The habitation of B. bombina and P. vespertinus populations in 25 and 22 localities, respectively, was established. Most modern populations of these species of anuran amphibians have been recorded near water bodies in river valleys.