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Presence of four owl species was confirmed in the area of Forest Experimental Station of WULS−SGGW in Rogów (central Poland) at the beginning of the 2000s. These were tawny owl, long−eared owl, little owl and barn owl. In the second half of the XX century migratory short−eared owls had also been recorded. Density of tawny owl territories per total area was 2.6/10 km2. For long−eared owl it was lower...
Clear−cutting impacts site conditions seriously. However, in nutrient−poor sites the effects of stand removal can be minor than in nutrient−rich sites. The aim of this work was to assess whether the clear−cut can improve species diversity of ground Cladonia species, which decline has been observed in forest communities. In stands of different age classes (10, 11−20, 21−40, 41−60, 61−80, 81 years)...
The paper presents an analysis of abundance of the millipedes (Diplopoda) in the Białowieża Forest (eastern Poland) regarding habitat moisture and fertility. Mean individual biomass depends mostly on habitat fertility achieving higher values on eutrophic and moist sites. PCA and RDA confirmed observed pattern of relationship between millipedes abundance and site conditions.
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