ИСТИНА

Changing ranges leads to transformations of structural and functional relationships in the ecosystem. The reduction in the range caused by the extinction of populations will also contribute to a change in trophic connections and disruption of the circulation paths of parasites in biocenoses. To date, the study of amphibians as alien species on the territory of the Russian Federation has achieved significant success. One also requires further study of the features of biocenotic relationships - nutrition, including larvae, the composition of consumers and the study of parasites of alien species of amphibians – marsh and common frogs as well as the green toad. The data obtained will make it possible to assess the extent of distribution and the degree of influence of these on aboriginal ecosystems.