Features of species composition and indicators of infection by helminths marsh frog Pelophylax ridibundus in the context of transformation of the habitats of the Southern Urals

The article presents data on species composition, infection rates of helminths Marsh Frog of Southern Urals (Orenburg region and the Republic of Bashkortostan) in a diverse human impact. The taxonomic composition of worms for the study area includes 16 species: 13 species of trematodes and 3 species of nematodes. Showed a reduction in performance in terms of extensiveness of invasion largest anthropogenic impact in 3 species of trematodes (at a statistically significant level).