Carabids in a Spring Wheat Agrocenosis to the South of Sverdlovsk Oblast and the Effect of Insecticide Treatment on Their Populations |
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| Authors: | Bel'skaya E A Zinov'ev E V Kozyrev M A |
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| Institution: | (1) Ural Research Institute of Agriculture, ul. Glavnaya 21, Yekaterinburg, 620061, Russia;(2) Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences, ul. Vos'mogo Marta 202, Yekaterinburg, 620144, Russia;(3) Ural State University, pr. Lenina 51, Yekaterinburg, 620083, Russia |
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| Abstract: | Species composition, community structure, and seasonal population dynamics of carabids in spring wheat fields were studied in the vicinity of Yekaterinburg. In addition, the effects of crop treatment with the pyrethroid insecticide Decis on carabid populations was analyzed. The results showed that the numbers, species diversity, and the prevalence of certain trophic groups of carabids changed during the season. After the treatment of small areas with Decis, the number of carabids in catches decreased for a short period of time. During the second and third weeks after the treatment, the numbers of carabids increased above the control level. The structural rearrangement of the carabid community was observed in the areas treated with the insecticide. |
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| Keywords: | carabids abundance community structure Decis agrocenosis |
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