In the years 2015 2016 was examined in the Lusatian mountains 10 head where it sprang. In each of its fauna has been collected as bentická, as well as underground, and now in three series. Then there was the environment of each spring, which is bound by the occurrence of fauna. Were chemical and physical parameters. In 9 of the watch was continuously measured and the measured temperature of the individual chemical physical indicators. It was found that the environment springs from 2013 has changed significantly, so it is stable. The water that flows on the surface, here is clean and almost meets in terms of chemical ukazatelůnormy of drinking water. The source for all the circumstances today, is the same. The underground source of these sources comes from the period of coniaku and is very shallow. The composition of the benthic fauna is significantly changed from 2013, only changing the abundance of individuals. Once again managed to confirm the occurrence of the ploštěnky mountain (Crenobia alpina). By lapacích o.k., managed to remove fauna occurring in the groundwater. It was deep and.

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Dynamika a rozšíření recentních svahových pohybů na úpatí Krušných hor | Abstrackt 1 ABSTRACT Recent mass movements currently comprise one of the main morphogenetic processes in the extensive anthropogenic relief of the foreground of the Krušné Hory Mountains in the Czech Republic. These mass movements result in several types of deep- seated slope failures, depending on the type of movement, lithological, structural, and geotechnical conditions and the water saturation of the landslide material. This thesis presents broad set of various methods of geomorphology, geophysics, engineering geology, dendrogeomorphology and geodesy in an attempt to fully understand the problem of slope failures in the Jezeří area located at the boundary between the Krušné Hory Mountains and the Most Basin (Czech Republic). An interdisciplinary approach has enabled an in-depth review of both the dynamics and development of recent slope failures as well as morphology and structure of slope failures. There are two sectors - Southeast and Southwest - with different types of slope failures. In the Southwest sector, mass movements occur in thick colluvial mantle and weathered Tertiary claystones. The main factors influencing their development include rainfall culminations, groundwater flowing from the valley of Šramnický Brook and...

The aim of my diploma thesis was to evaluate growth of underplanted beech, silver fir and Norway spruce on salvage clearings covered by rowan. The second aim of the thesis was to develop the most suitable techniques for vegetation reconstruction. 19 plots were evaluated and the results of rowan underplantings were compared among each other. Results of plots with beech underplantings show that plots with low rowan stocking level (0 - 2) have the best growth dynamics. Between stocking 3 - 5 the results of beech growth dynamics are still acceptable, but from stocking 6 the growth dynamics of beech is not favourable anymore. Norway spruce growth dynamic is the best with low stocking of rowan (0 - 2). Higher rowan stocking causes serious reduction in growth dynamics. Divergence of rowan stocking does not cause losses of underplanted trees. Fir areas were measured and assessed but could not be statistically evaluated because of insufficient number of plots.

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I analysed the structure and dynamics of a community of tropical arboreal mountain ants in Papua New Guinea over a succession gradient. There were 9 plots divided into 3 successional stages of forest (old (<50 years), middle-aged (20-30 years) and young (>13 years)). I found 24 species of arboreal ants in total. Gamma and alpha diversity differed over the successional gradient, and alpha diversity was correlated with tree size (DBH). Unexpectedly, beta diversity (number of ant species per tree) was low in middle-aged forest, i.e. it had the greatest ant species similarity between trees, probably due to forest structure (stem density and canopy connection). In contrast, the species composition of ant communities did not differ over a succession gradient, because most of the species were abundant in all forest stages. Similarly, there was also relatively little difference in composition of nest types between different successional stages. Here I have shown that succession had little impact on the structure and dynamics of tropical arboreal ant communities in high elevation, probably as a result of ants' adaptation to lower temperatures and ecological change to trophic generalists. But other factors such as absence of invasive species, food supply, and forest structure may play a significant role. In summary, local logging and shifted agriculture have relatively little impact on ant communities in mountain tropical forests. This is in contrast to similar studies from lowland rainforests and my results hence have a positive implication for tropical forest conservation of ants in mountain regions.

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