Daily rhythm of activity of blood-sucking mosquitoes (diptera, culicidae) in the conditions of the south of the Tyumen region

About the authors:

Tatyana A. Khlyzova, Cand. Sci. (Biol.), Senior Researcher, Russian Research and Development Institute of Veterinary Entomology and Arachnology (Tyumen)
Stanislav V. Latkin, Junior Researcher, Russian Research and Development Institute of Veterinary Entomology and Arachnology (Tyumen)

Abstract:

All landscape-climatic zones of the south of the Tyumen region mosquitoes are most active during the evening and early morning hours, when mosquitoes are active high number of attack under the canopy around the clock. Active attack female mosquitoes observed at + 12.6 ... + 30°C, relative humidity 33-100% and light 0-37000 lux. The highest activity observed in mosquitoes twilight that indicates that the illumination is one of their main limiting factors. Rapid transition from daylight to twilight and darkness of the night to the dawn stimulates the female mosquitoes. At relatively high night temperatures (above + 13 °C) the main factor limiting the intensity and duration of nocturnal activity of mosquitoes at this time, is the emergence of fog with increasing relative humidity up to 100%. Day of mosquito activity is inhibited by high temperatures and bright lighting.

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