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    Tytuł:
    Zastosowanie punktowo-drzewostanowej metody inwentaryzacji ptaków w lasach zagospodarowanych
    Application of the point-stand method of the bird census in the managed forests
    Autorzy:
    Sikora, D.
    Borecki, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/979013.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany gospodarcze
    inwentaryzacja zwierzat
    metoda punktowo-drzewostanowa
    leśnictwo
    ptaki leśne
    forest birds
    point counting method
    biodiversity indicators
    Opis:
    This paper presents the results of a bird census in the Morgi forest range in the Kolbuszowa Forest District (SE Poland). The census was conducted using the point−stand method, i.e. a modification of the point count. This modification enabled tailoring the method to the conditions of the Polish forestry, in which forest stand that is the basic unit of silviculture planning and forest management. The aim of the study was to test the new method of bird census in the managed and large−scale forest units, and to evaluate the utility of the results for conservation measures. Based on the list of stands of the Kolbuszowa Forest District, we drew randomly 270 forest stands, taking into account their most important features: dominant species, forest habitat type, age and vertical structure. Bird counts were carried out in spring of 2014 and 2015. Each stand was inspected twice during each season: 1) between April and mid−May, and 2) between mid−May and the first decade of July. In total, 1080 observation (listening) sessions were conducted and each of the stands was inspected four times. As a result, 14 982 bird observations of 15 757 individuals belonging to 113 species were made. In case of 6720 observations, 7186 individuals belonging to 85 species were recorded in the studied stands. The point−stand bird census presented in the paper, which is a forest−range census type, is adequate for use in large−scale forest units. It allows to determine fauna indices that characterise the forest range, together with the most important features of stands.
    Źródło:
    Sylwan; 2020, 164, 03; 237-245
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nietoperze jako wskaźniki stanu środowiska leśnego
    Bats as indicators of the condition of the forest environment
    Autorzy:
    Rachwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/979494.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    gospodarka lesna
    lasy
    ekosystemy lesne
    fauna
    nietoperze
    Chiroptera
    bioindykatory
    zanieczyszczenia srodowiska
    bats
    indicators
    forest management
    biodiversity
    air pollutions
    Opis:
    The article overviews the role of bats in the forest ecosystem (especially the European forest), the impact of environmental pollution on the forest and bats, and the issue of bats indication of the forest environment condition. Existing data on the transfer of pollutants to the environment and between the aquatic and terrestrial environment are reviewed. The water environment is an important receiver of industrial pollution, which then transfer to the terrestrial environment i.a. through insect larvae. Bats as predators hunting for the insects, which undergo part of their life cycle in water (including Diptera: Chironomidae), play an important in this cycle. Another source of bats intoxication are terrestrial insects feeding on plants that transfer toxins that settle on the leaves surface further in the food chain. Bats as predators of the first or even second level store in such a case substances like heavy metals in their bodies. Air pollutants also have a direct impact on forest stands, causing (in zones of strong industrial pollution) the inhibition of tree growth. The result is, among other things, a smaller number of hollows, which in turn is manifested indirectly through weaker settlement by bats (and birds) of these stands. Bats communities inhabiting the forest depend on such factors as the availability of roosting places, the age struc− ture and spatial structure of the stands. All these features (as well as others related to them) are subject to modification through economic forestry, which causes changes in the bat communities. Ecological research of forest bats shows variability of settling of managed stands, as well as diversified species composition, especially smaller presence of typically forest bats connected ecologically with forests (e.g. western barbastelle Barbastella barbastellus or lesser noctule Nyctalus leisleri), in favor of bats preferring open spaces and built−up areas (serotine bat Eptesicus serotinus). This is probably the result of changes in the age and spatial structure of the stand. On the basis of the collected information, it was concluded that bats are a valuable indicator of the condition of the forest environment.
    Źródło:
    Sylwan; 2019, 163, 03; 228-236
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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