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Vliv kůrovcové kalamity na společenstva epigeických Collembola (Insecta: Entognatha) klimaxových smrčin v Národním parku Šumava, Česká republika
Rusek, Josef ; Brůhová, Jindřiška
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 %.
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Povrchová aktivita osmi běžných druhů chvostoskoků ve smrkových lesích a na pasekách po kůrovcové kalamitě v Národním parku Šumava, Česká republika
Brůhová, Jindřiška ; Rusek, Josef
Surface activity of eight common epigeic species of Collembola were studied in spruce forests, dead spruce forests and clearings in the Šumava National Park, South Bohemia, Czech Republic: .i.Lepidocyrtus lignorum, Leidocyrus cyaneus, Pogonognathellus longicornis, Tomocerus minutus, Tetracanthella stachi, Allacma fusca, Entomobrya nivalis, Dicyrtomina minuta./i.. Five pitfall traps were exposed at each of the 9 sites in the summer and autumn periods to study the impact of spruce forest die-off after bark beetle attack (dead forests) and on clearings. Material comprising 79435 specimens was evaluated in this study using the non-parametric Kruskal-Wallis test for comparing Collembola activity between the sites and seasons. Complete linkage (Euclidean distances) cluster analysis was used for comparing the collembolan activity in all nine sites.
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