This work presents an ecological analysis of the community and biodiversity helminths Pelophylax lessonae (Camerano, 1882) from floodplain forest reservoirs European part Russia. The material for was personal collections made 2018–2021 in National Park “Smolny” (Republic Mordovia). Two hundred thirty-five amphibian specimens were examined nine three types hydrobiocoenoses: (1) floodplains a med...

Black-spotted pond frogs (Pelophylax nigromaculatus), widely distributed in East Asia, can be suitably used for the study of population genetic patterns and ecosystem monitoring. To systematically manage, conserve, this species, it is necessary to understand its habitat range. We analyzed morphological range black-spotted frog populations within a watershed Geum River, one main rivers South Kor...