Comparative analysis of ground beetle (Coleoptera, Carabidae) fauna and population in agroecosystems and meadows of Mordovia [Russian]

摘要

The studies were carried out in meadow and field ecosystems in 1996-1997. Ground beetles were regularly collected using pitfall traps. Ninety-two species of 29 genera were recorded. Among them, 73 species were found in floodplain meadows; 75 species, in dry meadows; 57 and 55 species, in winter wheat ana winter rye fields, respectively. Ten species of ground beeetles predominate in the floodplain and dry meadows, 9 species, in the agroecosystems. The eurybionts Poecilus cupreus, P. versicolor, Pterostichus melonarius, and Harpalus rufipes were dominant in all the ecosystems investigated. The similarity between the ground beetle populations in the floodplain meadows and the winter rye field is 73.3%; the similarity between their populations in the meadow and the fields is 63.4%. The meadow ecosystems in the territory studied are the main reserve and source of the dispersal of ground beetles to fields. The meadows along with the fields comprise a whole ecological system.