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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Testování efektivity ochranných nátěrů před ohryzem dřevin bobrem evropským (Castor fiber)
 Ševčíková, Eliška
Testing of the effectiveness of protective coating materials for preventing prowsing of woody species by Eurasian beaver (Castor fiber) This bachelor thesis deals with testing of the effectiveness of four protective coating materials for preventing browsing of woody species by the European beaver and evaluating the most effective one. Tested were commercial product Wöbra, a mix of Aversol and a material bitrex, a mix of Aversol, bitrex and silica sand, and abrasive coating material, compounds of which are a business secret. The effectiveness of these coating materials was tested in the floodplain forests, where is a long-term occurrence of the European beaver. The testing took place on standing trees, and partially on pre-felled trunks that were treated with the coating materials beforehand. The most effective of the tested protective coating materials was the commercial product Wöbra. This material was effective in 100 % of the cases of its use. Other materials showed slightly lowered effectiveness, as low as 80 %.
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Rozšíření a velikost populace bobra evropského (\kur{Castor fiber}) ve VÚ Boletice
 SEIDL, Vladislav
In this bachelor thesis the information about the European beaver (Castor fiber), its historical and recent distribution in the Czech Republic including possible immigration paths is reviewed. The impact of beaver on communities of both aquatic and terrestrial organisms and its relationship with humans are described. The thesis also includes a project proposal regarding monitoring the population size and territories number of the European beaver in Boletice Military Training Area. Some management implications focused on military area are discussed.
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