Dendrogram showing the results of grouping by Bray method. Clusterization is performed by the complete method. The distance level is measured along the vertical axis. a – Carabidae; b – Staphylinidae; c – Elateridae; 1– clean fallow; 2, 3 – potato fields; 4, 5 – spring grain crops; 6 – winter grain crops; 7–9 – perenual grasses; 10 – field margins and adjacent semi-open habitats.