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Note about a diurnal rhythmicity of coprophilous flies and their parasitoids on mountain pastures


, : Note about a diurnal rhythmicity of coprophilous flies and their parasitoids on mountain pastures. Dipterological Research30: 53-56

Leading factors determining diurnal activity of coprophilic flies on mountain pastures of Altai and Kazakhstan, are temperature of air and biotopical conditions of a pasture. In May - June for mass species of flies the activity has one peak. In June - August the activity of flies depends from termhumidpreference of species and insolation and can have two peaks. On pastures of mountain-forest zone and steppe at altitudes 1500-2300 m above s.l. diurnal dynamics of flies on a substratum is similar on early summer. The larvae of coprophilic flies are activity aroundthe-clock, but at strong night temperature falls their locomotion low. The larvae of flies commit diurnal vertical migrations, selecting layers with suitable temperature. Diurnal dynamics of parasitoids also depends from term gragients. It is insects with diurnal type of activities, the maximum by which observed in middle of day.

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