Reproductive biology of Zootoca vivipara (Reptilia, Lacertidae) in the Perm region

In this article the characteristics of reproductive biology of Zootoca vivipara (Lichtenstein, 1823) from the Perm region are presented. There is a positive significant correlation between body weight with fecundity and body length with fecundity of female of viviparous lizard. The long duration (up to two days) of newborn being in eggshell membranes was observed in process of ovoviparity. Comparison our data and published resulted that the number of newborns decreases and body weight and body size of newborns increases towards the northern border area in the European part of Russia.