Response of Orthoptera assemblages to management of montane grasslands in the Western Carpathians |
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Authors: | Vladimíra Fabriciusová Peter Kaňuch and Anton Kri?tín |
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Institution: | (1) Animal Ecology, Johann-Friedrich-Blumenbach-Institute of Zoology and Anthropology, Georg-August University of G?ttingen, Berliner Str. 28, 37073 G?ttingen, Germany;(2) Plant Ecology, Albrecht-von-Haller-Institute for Plant Sciences, Georg-August-University G?ttingen, Untere Karsp?le 2, 37073 G?ttingen, Germany;(3) Senckenberg Museum of Natural History G?rlitz, PO Box 300 154, 02806 G?rlitz, Germany |
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Abstract: | Montane grassy habitats in the Western Carpathians are relatively well preserved, maintain high species richness and are often
important in accordance to the nature conservation policy in Europe. However, knowledge about the impact of farming on the
habitat quality there is rather poor. The influence of various management types (permanent sheep pen, irregular grazing, mowing)
on Orthoptera diversity and species determining assemblages of these habitats were analysed on 72 plots in Poľana Mts Biosphere
Reserve. Altogether, 36 Orthoptera species (15 Ensifera, 21 Caelifera) were found, whereas the highest number of species was
found on plots with irregular grazing (28 species), followed by plots with mown grass (17) and permanent sheep pens (14).
All four measures of the assemblages’ diversity confirmed significant differences. Using Discriminant Function Analysis, correct
classification rate of Orthoptera assemblages was unambiguous according to the type of management. Each form of the management
harboured several characteristic species. Thus implications regarding the biodiversity conservation and grassland management
were given. |
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