Abstrdct: In the spring, wolf spiders (Lycosidae) predominate in the herpetobiont spider complex of most biocenoses of the Talovskaya steppe. They make up more than half of all captured individuals. In two biotopes (sagebrush solonetz and caragana in the steppe), the most numerous are Gnaphosidae spiders; Linyphiidae predominate on the pond shore, and Dictynidae predominate on the malicious salt marsh. Most of the studied biocenoses are characterized by a balanced population, without clear dominance of any species. The exceptions are the sagebrush steppe, where Caspicosa manytchensis is a very abundant species, the forb-sagebrush solonetz with a predominance of Trochosa robusta, as well as the shrub steppe (spirea) and poplar grove, where species from the genus Alopecosa dominate. Analysis of the similarity between spider groups has shown that populations in two biotopes (poplar grove and malicious salt marsh) differ significantly from others. The remaining surveyed biotopes by the spider population are divided into two groups (dry and moist), differing primarily in the degree of moisture during the study period.

 

Key words: spiders, population structure, spring aspect, Orenburg Reserve, Pre-Urals steppes.