Abstract:
Influence of different grassland management practices on Orthoptera assemblages inhabiting humid grassland areas was studied
since 2003 to 2011. The examined sites were within the protected area of Balaton Uplands National Park. The physiognomy and
climatic conditions of the studied habitats were similar but their land use types were significantly different. After the preliminary
analyses of Nonmetric multidimensional scaling, neighbour joining clustering, and Spearman rank correlation, we examined
the possible effects of such independent variables as land use (nonmanagement, mowing, grazing), microclimate (humidity and
temperature), regional macroclimate (annual and monthly mean temperatures and rainfall), using General Linear Mixed Models,
and canonical correlation analysis. Our results showed that the effect of grassland management practices on the organization of
Orthoptera assemblages was at least as important as that of macro- and microclimate. Furthermore, grassland management could
intensify the influence of several local and regional parameters.These results can help finding the most suitable type of grassland
management to conserve the grasshopper assemblages.
