The population structure of bloodsucking mosquito larvae in temporary and constant water bodies of the northern Kulunda steppe was investigated. The seasonal dynamics of the population density, the number of species in different types of reservoirs, and average density of each species are given. The productivity of water reservoirs in relation to mosquitoes of the family Culicidae is analyzed. The basic factors affecting the distribution of larvae of dominant species between different water bodies were revealed. The degree of correlation between the structure of bloodsucking mosquito larva assemblages and the type of the reservoir was established.
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