Characteristics of green toads Bufotes viridis (Laurenti, 1768) polymorphism in urbanized territories of the Samara region

The results of the study of the features of polymorphism of green toad populations within the city of Samara are presented. It was established that under conditions of low and medium transformation of habitats, a similar composition of analyzed morphs is observed with a predominance of the dominant type M2 («dark background, separate spots»), in a biotope with the lowest anthropopression - M1 («bright background, separate spots»). It was noted that a sharp decrease in diversity - to monomorphism (only the M2 phenotype is noted), in the conditions of habitat transformation - low-rise buildings.