The analysis of helminthes fauna of a green toad Bufotes viridis (Laurenti, 1768) on the urbanized territories of the Samara region

The results of researches of species composition and structure of helminthes fauna of green toad Bufotes viridis (Laurenti, 1768) on the urbanized territories of the Samara region. In the period 2002-2016 years method full autopsy studied 110 amphibians of five populations, including control. Found 13 species of helminths: Monogenea (1), Cestoda (1), Trematoda (6), Nematoda (4), Acanthocephala (1). Dominate geonematodes; trematodes and larval stages of helminthes - are less common. With increasing degree of urbanization (multi-level building) on biotope notes: 1) reduced species diversity of biohelminths; 2) decrease of infestation many kinds of worms; 3) increase in the percentage of background species of geohelminths; 4) changing structure of helminth community in the direction of simplification.