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Abstract

Aim: The work presents the algorithm for calculating the potential number of genetic combinations with an increase in the animal population to infinity. Methods: Calculations were carried out using the methods of bias corrected form for the Chao 1 and the 1 st order jackknife, based on the multi-locus variability of DNA markers (RAPD and ISSR) in two specially protected species of Lucanus cervus (stag-beetle) and Helicopsis striata (steppe snail). Results: According to the obtained data, the groups, inhabiting relict biocenoses, are the most prominent among the populations of two species. There is the largest number of multi-locus genotypes, most of which are unique.The most monomorphic are the populations, inhabiting technogenic territories, because strongly isolated and small groups of animals are formed here very often. Their drift of genes leads to a decrease in allelic diversity. Conclusion: In addition, it has been established, that dapper animals (insects) are better adapted for existence in anthropogenic environment, than sedentary species (snails).