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EN
In the years 1976-1989 392 nests of D. urbica and 584 nests of H. rustica were collectcd from 54 localitics in 6 Provinces in the north of Poland. The highest mean number of specimens per nest was observed in the nest of D. urbica (28.4) and the lowest in nest of H. Rustica (4.2). The highest percentage of nests of the swallows with Oe. hirundinis was recorded in December and lowest in March. The highest mean number of Oe. hirundinis per nest was in the nest of D. urbica in August and lowest in February, and in the nest of H. rustica - in September and in March respectively.
EN
The aim of this research was to determine the composition of microscopic fungi colonizing Norway spruce dead wood depending on the degree of decomposition of wood and the location in the Tatra National Park (TPN; southern Poland). The work included lying and standing dead wood of Norway spruce as well as tree stumps. The sampling plots were located in the Białka Valley (eastern part of the TPN) where the forests are unmanaged and area is mostly under strict protection, and in the western part of the Park, in the Chochołowska Valley, where the majority of forests is privately owned and managed (landscape protection). Samples were collected three times in the growing season, in spring, summer and autumn 2016. The sampling plots were located in the forests covered by different forms of protection: strict, active and landscape. The dominant microscopic fungi inhabiting analysed Norway spruce dead wood in selected regions of the Tatras are fungi belonging to Trichoderma genus: T. harzianum: T. polysporum, and T. hamatum. A much greater diversity of fungi species isolated from the dead wood was found for the Białka Valley, subjected to strict and active protection, than Chochołowska Valley, where forests are subject of the economic utilisation. More species and colonies were obtained from lying and older dead wood than from the stumps in the higher classes of distribution.
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