Syrphid communitieS (Syrphidae, diptera) in baSic typeS of aGroecoSyStemS in Karlovo valley (bulGaria)
Keywords:
syrphid flies, Syrphidae, Karlovo valley, community, biological controlAbstract
This contribution is the first ecologicaly-faunistic study of the syrphid flies from Karlovo valley. Syrphid cenoses in two basic types of agroecosystems were examined – cereals with merged surface and maize. fourteen agroecosystems were explored. Main population and cenotic parameters of the syrphid communities were identified and analysed: species composition, evaluated qualitatively and quantitatively; occurrence of the species; population density; general average density; dominant and ecological structure. The study established 14 species syrphid flies. All species were new for the syrphid fauna of the valley.
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