Epigeic arthropod communities of spruce forest stands in the High Tatra Mts. (Slovakia) with special reference to Collembola - first year after windthrow.

Autor: Urbanovičová, Veronika
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Jazyk: angličtina
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Druh dokumentu: Non-fiction
ISSN: 1211-376X
Abstrakt: Abstract: Epigeic arthropod communities, in particular Collembola, in spruce forest stands (REF) and heavily damaged stands from which fallen trees (EXT) were extracted, were studied one year after a severe wind storm that occurred in the High Tatra Mts. (Slovakia) in November 2004. Both REF and EXT stands were similar in terms of altitude, slope, exposure, soil and vegetation. Pitfall traps were set in three replicated plots within the REF and EXT stands, with a line of six traps set in each plot from July to October 2005. The dramatic changes in microclimate that occurred in the cleared plots (EXT) resulted in pronounced alterations in arthropod activity and community structure of Collembola. Mean activity of epigeic arthropods differed markedly between REF and EXT, being six times higher in cleared plots (EXT 2136±1107 ind./trap) compared to the intact stands (REF 332±63 ind./trap). Number of arthropod groups caught was similar, 19-20 in the REF and 19-23 in the EXT plots. Shannon (H’) and Pielou (J’) diversity indices of the EXT plots (H’ 0.40-1.11; J’ 0.13-0.38) were lower than those of the REF plots (H’ 1.55-1.70; J’ 0.52-0.57), reflecting the dominance of Collembola in the arthropod community (EXT 78.55%; REF 36.39%). Collembola were strikingly more active in cleared forest stands (EXT 1 669±1 109 ind./trap) than the reference plots (REF 121±30 ind./trap). Species richness was similar in REF and EXT plots, 22-26 and 20-29, respectively. Shannon diversity and Pielou evenness were clearly higher in REF (H’ 2.10-2.34; J’ 0.64-0.76) than EXT plots (H’ 0.76-1.68; J’ 0.26-0.50). An abundance of eurytopic species (Orchesella flavescens (Bourlet, 1839), Lepidocyrtus lignorum (Fabricius, 1775)) and species characteristic of open habitats (Sminthurinus elegans (Fitch, 1863)) and mass occurrence of Hypogastrura socialis (Uzel, 1891) were responsible for th
Databáze: Katalog Knihovny AV ČR
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