FORMING OF BEETLE COMMUNITIES (COLEOPTERA) IN THE FOREST SOIL OF THE MORAVA RIVER VICINITY (SOUTHWESTERN SLOVAKIA)

In 1991-1992 we investigated soil beetle communities near the Morava r iver (southwestern Slovakia). We obtained 7978 beetle individuals by t he square method. Individuals of these families were the dominating on es in soil of two forest communities (Salici-Populetum, Fraxino-Ulmetu m): Carabidae, Staphylinidae and Curculionidae. Summary abundance of t he beetles (from 8 study areas) was 130 ex.m-2. We determined 53 weevi l species. Presence of geobionts such as Acalles echinatus, Sciaphilus asperatus, Barypeithes chevrolati and Trachodes hispidus indicates th at only inundations influence strongly the process of the beetle commu nities formation. Type of the forest community, the pH value and conte nt of carbonates in soil do not influence this process so strongly.