A comparison of ground beetle assemblages (Coleoptera: Carabidae) in conventionally and ecologically managed alfalfa fields

  • P. Kolařík | kolarik@vupt.cz Department of Plant Protection, Agriculture Research Ltd., Troubsko, Czech Republic.
  • J. Rotrekl Department of Plant Protection, Agriculture Research Ltd., Troubsko, Czech Republic.
  • M. Barták Department of Zoology and Fisheries, Czech University of Life Science, Prague, Czech Republic.
  • A. Krupauerová Department of Zoology and Fisheries, Czech University of Life Science, Prague, Czech Republic.
  • J. Frydrych OSEVA Research and Development Ltd., Zubří, Czech Republic.

Abstract

From 2007-2011, the occurrence of ground beetles (Coleoptera: Carabidae) was studied using emergence traps in two differently managed alfalfa fields in the Czech Republic - a conventional and an ecological production system. In total, 784 specimens of ground beetles representing 58 species were trapped in these two alfalfa fields in South Moravia. A slightly higher number of specimens were trapped in the conventionally managed than in the ecological alfalfa stand (404 vs 380, respectively). In the conventionally managed alfalfa stand, the number of species was also higher than in the ecological stand (45 vs 40, respectively). With the exception of 2007 and 2009, Simpson’s indices of diversity were higher in the conventional stand than in the ecological in all study years. Shannon’s index was higher in the conventional alfalfa field in 2008, 2009, and 2011. Regarding distribution, species classified into group E (i.e., those without special demands on the type and quality of their habitat) dominated in both types of management throughout the experimental period. The incidence of species classified into group R (i.e., those with narrow ecological amplitude) was very low; i.e., only four species. These ground beetle species are included in the Red List of Threatened Species of the Czech Republic, and all of them (i.e. Acupalpus suturalis, Calosoma auropunctatum, Cicindela germanica and Ophonus cribricollis) are listed as vulnerable.

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Published
2014-12-21
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Supporting Agencies
This research was supported by the NAZV project QH 72151 of the Czech Ministry of Agriculture.
Keywords:
Coleoptera, Carabidae, agriculture, ecological alfalfa, conventional alfalfa.
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How to Cite
Kolařík, P., Rotrekl, J., Barták, M., Krupauerová, A., & Frydrych, J. (2014). A comparison of ground beetle assemblages (Coleoptera: Carabidae) in conventionally and ecologically managed alfalfa fields. Journal of Entomological and Acarological Research, 46(3), 102-106. https://doi.org/10.4081/jear.2014.3791