Orthoptera assemblages of beech stand plots during early succession stages after clearcutting -
A. Sliacka, A. Krištín, L. Naďohttps://doi.org/10.17221/48/2012-JFSCitation:Sliacka A., Krištín A., Naďo L. (2013): Orthoptera assemblages of beech stand plots during early succession stages after clearcutting -. J. For. Sci., 59: 93-100.
Open habitats in closed forests are formed by various biotic and abiotic factors. These new habitats differ from their former parent stands in light conditions and vegetation structure facilitating their colonisation by heliophilous insects. We studied interseasonal differences (2010 and 2011) in the Orthoptera assemblages on eight clearcuts in beech forests. Using a sweeping method, altogether 20 species were recorded on the clearcuts in the first year, 26 in the second. In the second year, species number and abundance were higher in all orthopterans and also in the suborder of grasshoppers (Caelifera). In the crickets (Ensifera), interseasonal differences in the species number and abundance were not significant. The species composition differed among the plots also within individual years. In the second year, the frequency increased in 22 species (84.6%) while it decreased in four. We suggest that the ground-dwelling Caelifera species are better bioindicators of the deforested plot colonisation than the arbusticolous Ensifera.Keywords:
deforestation; Ensifera; Caelifera; deciduous forest; corridors; central Europe