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Effect of succession and reclamation on wasps and bees (Hymenoptera: Aculea) on combustion by-products deposits
 Eštok, Pavel ; Hendrychová, Markéta (advisor) ; Růžička, Jan (referee)
This diploma thesis summarises the available information about the importance and significance of post-industrial areas from the environmental point of view and information about natural conditions of the Central Bohemian Uplands (České středohoří) in the region of the town Louny. The thesis concerns especially the characteristic areas of the combustion by-products deposit of Třískolupy I and Třískolupy II which are connected with the Počerady brown coal power plant. The practical aim of the thesis is to evaluate the effect of the different ash-material management on the presence of the aculea Hymenoptera (Hymenoptera: Aculeata), regarding especially its diversity and the presence of the rare species. In the thesis, reclaimed areas have been compared with the areas in which spontaneous succession is proceeding. For the data collection, hymenoptera have been trapped in coloured plates filled with the salty solution of water and detergent, so-called Moerickeho pan traps. From particular sampling sites 638 hymenoptera individuals have been collected through the monitored period of time and classified into 98 species and 13 families. Based on the collected samples it was possible to compare the differences between the succession and the reclamation sites. On the areas developing spontaneously more species and individuals were observed. In total, 26 rare species from Red List were recorded.
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