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The importance of dung beetles for the renovation of the cattle pasture sward
 JANOVSKÝ, Jindřich
This theses focuses on the importance of coprophagous beetles for dung decomposition and restoration of grass in the cattle pastures. Diversity of coprophagous beetles was measured using special traps in four cattle pastures at the family farm in western Bohemia. The measurement was provided 3 times in May 2014, August 2014 and September 2013 during one-week sampling periods. In total, 444 specimens of 22 species was collected. Caught species belonged to the family Scarabaeidae and Hydrophilidae. The beetles belonged to the functional group, " dwellers ". The greatest influence on the grass restoration have tunneling species. However, these were not caught on pastures. The highest abundance was detected in May with 379 species. In this period, there was significantly higher abundance of small and large non-tunneling kinds and of Hydrophilidae compared to September (P<0.05). Abundance of Scarabaeidae did not differ significantly (P>0.05) between August and September. The greatest significance for the functional decomposition of dung in a pasture can be expected due to a large Aphodius rufipes species which may be present in the feces in a large number at the end of summer.
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