The structure of carabid assemblages was studied in the Holy Cross Mountains, in stands of Luzulo pilosae-Fagetum lowland acidic beech forest (LAB), Dentario glandulosae-Fagetum fertile Carpathian beech forest (FCB), and Dentario enneaphylli-Fagetum fertile Sudeten beech forest (FSB) in 2002. Carabid beetles were collected using Barber's pitfall traps with ethylene glycol in monthly cycles from May to September. A total of 4260 individuals representing 28 species were caught. The highest similarity was calculated for the LAB and FCB assemblages (P=0.54), while the FCB and FSB assemblages were the least similar (P=0.39). The highest diversity was recorded in the FSB assemblage (H'=2.06), and the lowest in the assemblage of acidic lowland beech stands (LAB) (H'=1.45). The dominant species were Carabus violaceus in the LAB sites, Carabus glabratus in the FCB sites, and Carabus hortensis in the FSB sites. The most uniform distribution of individuals between species was seen in the FSB assemblage (0.76) and in the FCB assemblage (0.74), while the LAB assemblage was highly non-uniform in this respect (0.53) Trapability was lowest in LAB (0.36) and highest is FSB (0.55). The prevailing zoogeographical elements were Palaearctic species in LAB, European Forest Province montane species in FCB, and European Forest Province species in FSB. The LAB and FCB assemblages were most active in the spring (Fig. 4) and the FSB assemblage reached peak activity in the summer (July). The dominant species types were forest species (habitat preferences), large zoophages (feeding preferences), mesohygrophiles (humidity preferences), and spring breeders (developmental type).
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