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Alpine sites in the High Sudetes Mts. host—due to their history and special climatic conditions—unique assemblages of lepidopteran species. We used data from ten of these sites to study species richness of the lepidopteran fauna and to test the effect of site area, distance to the nearest site and connectivity. For this, we used cluster analyses,(More)
Despite their small extent, alpine ecosystems belong to the most valuable, yet highly threatened natural biotopes worldwide. Alpine habitats are endangered particularly by anthropogenic influences and climate change as well as invasions of non-native plants. Although plant invasions are regarded as one of the most serious threats to biodiversity globally,(More)
Unique alpine ecosystems are threatened by skiing activities all over the world. We studied the effect of alpine ski-slopes on epigeic beetles by pitfall trapping in the Praděd National Nature Reserve (Czech Republic) where the management of ski-slopes has never caused any disturbance to the vegetation cover. Using a mixed modelling approach, we demonstrate(More)
Some species of centipedes and millipedes inhabit upper soil layers exclusively and are not recorded by pitfall trapping. Because of their sensitivity to soil conditions, they can be sampled quantitatively for evaluation of soil conditions. Soil samples are heavy to transport and their processing is time consuming, and such sampling leads to disturbance of(More)
As canopy structure produces spatial heterogeneity of litter microclimatic conditions and thus is a crucial factor affecting ground insects, we hypothesized that low canopy openness has a positive effect on the activity of ground insect predators in forest and non-forest habitats. Blowfly larvae were used as bait along the canopy openness gradient (forest(More)
Odonata, like most freshwater invertebrates, tend to overwinter in water due to the thermal properties of a water environment. Winter damselflies (genus Sympecma), however, hibernate as adults in terrestrial habitats. The strategy of adult overwintering combined with high mortality is associated with several unique adaptations to semiarid conditions, but(More)
Coppice abandonment had negative consequences for the biodiversity of forest vegetation and several groups of invertebrates. Most coppicing restoration studies have focused only on a single trophic level despite the fact that ecosystems are characterized by interactions between trophic levels represented by various groups of organisms. To address the(More)
Due to changes in the global climate, isolated alpine sites have become one of the most vulnerable habitats worldwide. The indigenous fauna in these habitats is threatened by an invasive species, dwarf pine (Pinus mugo), which is highly competitive and could be important in determining the composition of the invertebrate community. In this study, the(More)
We evaluated individual behavioural patterns of isopods expressed as tonic immobility following some intrusive treatments. Common rough woodlice, Porcellioscaber, were kept individually in plastic boxes and tested for tonic immobility repeatedly. Reactivity, sensitivity (number of stimuli needed to respond), and endurance of tonic immobility (TI) according(More)
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