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The loss of bees is a relatively well-known worldwide phenomenon. Many papers examine the direct influence of different factors on global bees lost. However, a look at this problem with the intentions of host-parasite-environment interactions is rare. This paper post tries to prove possible connections among bees, their parasites and landscape structure. During the research at 27 suitable sites across Slovakia, Nosema spp. spores were detected in two samples (7.41 % of examined apiaries) and Varroa destructor in a total of 41 % of samples (mean prevalence of 0.57). Significant differences were found in mites infestation in altitudes up to 500 m and over 500 m, and at sites with different ES. Considering the landscape structure, Varroa infestation was significantly positively influenced by the presence of discontinuous urban fabrics.

Traps made from PET bottles were used to assess the efficiency of four baits in terms of the number of individuals for selected Diptera families collecting in Eastern Slovak gardens in summer and autumn. Bait used in traps significantly affected the taxonomical composition of the samples obtained. Moreover, significant differences in bait efficiencies and temporal shift in bait efficiencies were confirmed for the Diptera order and for selected dipteran families. The most effective bait for baited-trap Diptera sampling was beer, followed by wine, meat, and syrup from the summer sampling season. In the autumn sampling season, the wine was most effective, followed by beer, syrup, and meat. For the family Scatopsidae wine, and for the family Platystomatidae, meat were the most effective baits. Drosophilidae were most attracted to beer in summer and to wine bait in autumn.

Although the invasion of exotic plants has been recognised as the serious cause of the biodiversity loss and natural habitats degradation and threat to the ecosystems functions, just the little attention has been paid to the potential impacts of the goldenrod invasion on the soil properties. Equally, currently obtained results are contrary and ambiguous. We tested whether the grass fields invaded and uninvaded by Canadian goldenrod (Solidago canadensis L.) differ in pH, soil moisture, organic carbon (Cox), humus and P, K and Mg contents and related the variations to the chosen environmental variables. We did not find significant distinctions of the studied types of habitats in the selected physico-chemical soil properties as well as the relation between the goldenrod invasion and the changes in soil properties. Nevertheless, whereas the soil reaction, soil moisture and Mg content were higher in the invaded soils, the Cox, humus and P and K contents were higher in the uninvaded ones. Doubtless, further attention need to be paid to this problem.