Carabids in a Spring Wheat Agrocenosis to the South of Sverdlovsk Oblast and the Effect of Insecticide Treatment on Their Populations

Pleiades Publishing Ltd - Tập 33 - Trang 38-44 - 2002
E. A. Bel'skaya1, E. V. Zinov'ev2, M. A. Kozyrev3
1Ural Research Institute of Agriculture, Yekaterinburg, Russia
2Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences, Yekaterinburg, Russia
3Ural State University, Yekaterinburg, Russia

Tóm tắt

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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Pleiades Publishing Ltd

Tập 33

38-44

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