Changes of number and spread of capercaillie (Tetrao urogallus L.) in the Lublin region
2000
Dziedzic, R. | Beeger, S. | Flis, M. | Wojcik, M. | Olszak, K. | Blaszczuk, A. | Sliwinska, E.
Population of Capercaillies decreased from 310 to 100 birds in the South of Lublin region in 1971-98. Forest inspectorates Goscieradow and Rozwadow were areas where Capercaillies occurred periodically, and about 80 percent of their population was found in Janow Lubelski, Bilgoraj and Jozefow inspectorates. The number of Capercaillies in Jozefow inspectorate appeared to be the most stable, and the greatest decrease (about 4-fold) was found in Janow Lubelski inspectorate. Capercaillies densities ranged from 3.3 and 10.6 birds per 100 ha in the inspectorates to 16.4 per 100 ha in a single stand in Janow Lubelski inspectorate. The distance between the neighboring stands does not exceed 5 km and there is a possibility to exchange the genetical material between birds. Capercaillies occurred most often in wet forest habitats, and the percentage of the area occupied by them in relation to the total inspectorate area amounted to 3.5, on average
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