Ermolova N.V. 1
Shaposhnikova L.I. 1
Tebueva O.M. 1
1 FKUZ “Stavropol Research Institute for Plague Control” of the Federal Service for Supervision of Consumer Rights Protection and Human Welfare
We study several internal and external factors affecting the mountain ground squirrel fleas, which are the main carriers of plague in the Central Caucasus mountainous natural plague focus. Marked dependence of distribution of various species of fleas in the Central Caucasus on climatic factors. Studied endoparasites fleas are biotic factors in the regulation of insect populations. Set the negative impact of nematodes, microsporidia and дрожжеподобного fungus on the reproductive function of fleas. Гре- гарины and flagellate have no negative effects on the body of a flea, as комменсалами of these insects. It has been shown that interspecific and intraspecific competition in the species of fleas C. t. elbrusensis and Ct. orientalis - members таксоценоза fleas mountain souslik; symmetrical and unsymmetrical interspecific competition, the reduction of life expectancy.