Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 83. (Budapest 1991)

Báldi, A. ; Ádám, L.: Habitat selection of ground-dwelling beetles during dolomitic succession

RESULTS 23181 individuals were registered in all of the habitats belonging to the selected species for analysis (see above). Values of habitat fidelity and habitat selection indices are shown in Table 1. There were only two cases when a species occurred in only one habitat, but there were twenty one cases, when a beetle species avoided a habitat. The values of the habitat selection index ranged from 0 to 4. The average value of this index for the 22 abundant species is 3.05, which indicates a strong habitat selection. The 22 most abundant beetle species were clustered into four groups by cluster analysis (Fig. 1), based on their habitat fidelity values. Group I, II, III and IV consists of species which preferred forest, dolomitic steppe meadow, open dolomitic grassland, and closed dolomitic grassland habitats, respectively. Pterostichus mêlas Abax ater Carabus convexus Geotrupes vernalis Onthophagus nutans Nicrophorus humator Nicrophorus vespillo Nicrophorus vespilloides Ocypus olens Onthophagus fracticornis Calathus fuscipes Sisyphus schaefferi Onthophagus grossepunctatus Thanatophilus rugosus Crypticus quisquilius Pedinus femoralis Potosia cuprea Amphotis marginata Cetonia aurata Zabrus spinipes Gnaptor spinimanus Pseudocypus picipennis Fig. 1. Dendogram of cluster analyses of beetle species, based on habitat fidelity indices. Number I, II, III and IV refer to forest, dolomitic steppe meadow, open dolomitic grassland and closed dolomitic grassland habitats, respectively.