Vliv kůrovcové kalamity na společenstva epigeických Collembola (Insecta: Entognatha) klimaxových smrčin v Národním parku Šumava, Česká republika

Soil surface activity of epigeic communities of Collembola were studied in undamaged climax spruce forests, in dead spruce forests after bark beetle attack and in clearings in the Šumava National Park, South Bohemia, Czech Republic. Five pitfall traps were exposed at each of the nine study sites. They were exposed for 12 months during summer, fall and winter periods from 1999 to 2000. More than 149 000 specimens of Collembola belonging to 54 species were trapped, determined and evaluated. The highest epigeic activity of Collembola was in the summer period in the undamaged spruce forests (624.2 ind./trap/30 days), lower in the dead forests (604.1 ind./trap/30 days) and lowest in the clearings (549.8 ind./trap/30 days). The undamaged spruce forests had 19, whereas dead forests only 14 and clearings 17 characteristic species with constancy C > 49 %