zoogeography

The study of zoogeographic characteristics in combination with the use of modern methods for assessing phylogenetic relationships allowed us to examine in detail the phylogeographic structure in scorpions of the genus Mesobuthus. In this work, to assess phylogenetic relationships, we used the decoded sequences of the COI gene fragment obtained by the team of authors in collaborative work and deposited in the Genbank database (NCBI).

Areal types are analyzed for spiders of stepped plots of the Ulyanovsk Region. Most of them belong to the Palaearctic ones (229 species). Trans-palaearctic (63 species), western-centralpalaearctic (50) and west palaearctic (40) areas are dominant. European eras are dominant among European-Siberian type, and west-central-Mediterranean dominate among the Mediterranean type.