The estimation of European beaver community in the Osownica river catchment area (Poland)
Miszczuk, H.(Szkola Glowna Gospodarstwa Wiejskiego, Warszawa (Poland). Katedra Inzynierii Wodnej i Rekultywacji Srodowiska) | Oglecki, P.(Szkola Glowna Gospodarstwa Wiejskiego, Warszawa (Poland). Katedra Ksztaltowania Srodowiska)
The investigations the beavers were carried out in 200304 with original method worked out by authors on the bases of their own experiences and literature data. About 20 specimens were observed which influences for eco-systems were analysed in details. The environmental changes corsed by beavers and greliminary suggestions for the sustainable human activity in the future were shown
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