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Biocentres and biocorridors in agricultural landscape - importance for communities of epigeic beetles (\kur{Coleoptera})
KREJČA, Mikoláš
At four different locations in southern Bohemia in Písek region there were monitored communities of epigeic beetles. Locations occurred in the agricultural landscape, which is influenced by human activities. One of the sites was spruces monoculture about 60 years old, other locations were meadow, waterlogged meadow and wheat field. Locations had biocentres and agrocenosis function. Pitfall traps method was used to obtain samples of epigeic beetles. In total, 2268 samples of epigeic beetles were obtained (12 families and 56 species). The largest number of beetles was found at locations wheat field, waterlogged meadow and forest, and in a number of 656 individuals in waterlogged meadow 634 individuals in the field and 583 individuals in the woods. The smallest number of 395 individuals was found in the meadow. Sorting of beetles was done according to the sensitivity to anthropogenic impacts (relict species R1, adaptive species R2 and eurytopic species E). On the surveyed locations only adaptive (R2) and eurytopic (E) species were discovered. Relict species (R1) were not present. Adaptable (R2) species were found 20 in the surveyed areas and eurytopic (E) 36 species. Anthropogenic influence index of epigeic beetles communities came in low figures. Low value tells us that beetle communities are strongly influenced by human activities. The most influenced locations were wheat field (1,11) and meadows (1,27) and the least affected area was the forest (20,42). Waterlogged meadows was also strongly influenced in a anthropogenic way, but it was better than a meadow and wheat field (2,29).
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