Authors: Loumová, Petra; Vlček, Martin;Svobodová, Jana;

The aim of our study is to use the information about long-term changes in abundance and genetic diversity of two populations of Lacerta viridis to prevent the possibility leading towards extinction. Those two populations are located in the Czech Central Highlands, which is one of the northernmost place from European distribution of this species. We found out that the population size and the genetic diversity of one population are significantly lower than the other one. The low abundance and genetic diversity of the weak population are the results of the effect of inbreeding and lack of migration. One possibility to force the threatened population is a translocation of some individuals from the stable population. Our idea is to use the population models to get knowledge about some key variables from several scenarios. The key questions are: what is the minimum size of the viable population, how many individuals can we translocate to support abundance and genetic diversity of the threatened population, but not to hurt the stable population, and what would be the predicted genetic variability of both populations. Our goal is also to gain better knowledge about future management which would keep those two populations viable.