Abstract
The study of population of species from complex Rana kl. esculentus (Amphibia, Ecaudata) was performed on the urbanized territories (Chisinau). It was established that the main species Rana ridibunda and Rana lessonae constitute 29,4% and 43,2% respectively, from the whole number of tested individuals, while Rana esculenta form constitute 27,4%. The study deals with polymorphic peculiarities of individuals form complex Rana kl. esculentus, as well as with their adaptation ability to change

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