Over world distribution of Steinernematidae and Heterorhabditidae (Nematoda, Panagrolaimida et Rhabditida) entomopathogenic nematodes

Abstract

The study represents a biogeographic survey over world distribution of the entomopathogenic nematodes (EPN) according to current borders of countries. The distribution of countries where entomopathogenic nematodes were presented including their belonging to biogeographic regions were analyzed. The World Geographical Scheme for Recording Plant Distributions and land area with using of the Bray-Curtis method of cluster analysis were also included. The analysis demonstrates simple of regularities in the EPN distribution. According to the analysis of published data, 120 species of EPN are presented in 72 countries that have the highest number of species in the Palaearctic and Oriental biogeographic regions. Presence of the EPN species in the studied countries and their belonging to the biogeographic regions was inherent for the distribution of countries in the calculated tree. The performed analysis revealed that countries grouped by regions and biogeographic botanical continents have similar fauna of the entomopathogenic nematodes. We assume that finding and character spreading of ENP species depend on the research level in different countries, as well as the biological characteristics of nematodes and certain conditions in different countries.