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Wyszukujesz frazę "browsing" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Sezonowa dynamika zgryzania i jego wpływ na wzrost sadzonek gatunków liściastych w pierwszym roku po założeniu uprawy
    Seasonal dynamics of deer browsing and its impact on deciduous saplings during first year after planting
    Autorzy:
    Nasiadka, P.
    Lipski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1018509.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zgryzanie
    lowiectwo
    wzrost roslin
    drzewa lisciaste
    sadzonki
    dynamika zgryzania
    lesnictwo
    szkody lowieckie
    uprawy lesne
    browsing
    damage by game animals
    seasonal dynamics of browsing
    broadleaved species
    damage survey
    Opis:
    The lack of knowledge about seasonal dynamics and impact of deer browsing on deciduous saplings in plantations in managed forests in Poland raises difficulties in assessing the impact of cervids on forests and in selecting effective methods for protecting plantations against damage caused by deer. The studies covered 1129 saplings of sycamore, oak, beech, linden and birch species that were planted on the unfenced sites accessible for animals and fenced sites left for comparison.
    Źródło:
    Sylwan; 2006, 150, 05; 3-15
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Żerowanie konika polskiego w strefie brzegowej siedlisk leśnych o różnym zwarciu koron
    Browsing of the Polish koniks within the forest edge of habitats with various canopy closure
    Autorzy:
    Klich, D.
    Grudzińska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/989672.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Roztoczanski Park Narodowy
    koniki polskie
    zerowanie
    ekotony
    ekoton las-pastwisko
    siedliska lesne
    bor mieszany
    ols porzeczkowy
    bor bagienny
    zgryzanie
    intensywnosc zerowania
    horse
    foraging
    ecotone
    browse
    shrubs
    Opis:
    The study assessed the intensity of Polish konik browsing in mixed coniferous forest (BM), alder swamp forest (OL) and pine swamp forest (BB) of different canopy closure and shrub or ground vegetation cover. The study was conducted in Polish konik enclosure situated in the Roztoczański National Park (eastern Poland) in August 2011. We examined mean browsing intensity and the tendency of horses to browse along 100 m zone from the pasture. The field study was conducted at three parallel transects set in 40 m intervals in each analysed forest habitat, starting at the forest edge and oriented towards the forest interior. Along the transects, 5×2 m plots were established in 10 m intervals. Within each plot the untouched current twigs and twigs browsed by koniks (up to 2 m above the ground) were counted separately, and categorized by a tree and shrub species. For each species 30 samples of complete twigs and twigs browsed by koniks were collected. Twigs were dried by 72 h in 60°C and weighted with accuracy up to 0.001 g. We estimated the dry mass of shoots available within the plot and taken by horses. Generally, koniks were using each studied forest stand proportionally to the mean browse mass. A factorial regression indicates that regardless to the available mass in a given forest stand, horses foraging intensity towards the forest interior was varying significantly. Koniks entered further into the forest the more willingly the more open the forest canopy was. Openness of the forest habitat could indirectly influence the pattern of forest penetration by horses, because of the grazed ground vegetation there.
    Źródło:
    Sylwan; 2016, 160, 01; 49-56
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wiosenne i letnie zgryzanie żeru pędowego przez konika polskiego w warunkach hodowli zagrodowej i otwartej w Bieszczadach
    Spring and summer browsing by Polish konik in enclosures and free ranging conditions in the Bieszczady Mts.
    Autorzy:
    Skiwski, M.
    Klich, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008746.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    koniki polskie
    wybiorczosc pokarmowa
    zer pedowy
    zgryzanie
    drzewa
    krzewy
    Bieszczady
    hodowla zagrodowa
    hodowla otwarta
    polish konik
    bieszczady mts.
    browse
    preference
    enclosure
    Opis:
    The field study was conducted within an acclimatization enclosure in Radziejowa Valley and in a clearing in Tyskowa Valley, close to Baligród (Bieszczady Mts., south−eastern Poland) during two seasons: spring and summer. The aim of this study was to assess browsing intake by Polish koniks (tarpan type) in enclosures and free ranging conditions. The measurements were done along transects in the enclosure and around the clearing, inward of the forest stand. In all scenarios, koniks preferred shrubs (rose and plum) mostly avoiding trees. The amount of taken browse depended on the amount of preferred shrubs available.
    Źródło:
    Sylwan; 2012, 156, 10; 792-800
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Skład gatunkowy, wzniesienie nad poziomem morza i kategoria ochrony jako czynniki wpływające na intensywność zgryzania odnowień w Tatrzańskim Parku Narodowym
    Species composition, elevation, and former management type affect browsing pressure on forest regeneration in the Tatra National Park
    Autorzy:
    Bodziarczyk, J.
    Zwijacz-Kozica, T.
    Gazda, A.
    Szewczyk, J.
    Fraczek, M.
    Zieba, A.
    Szwagrzyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/45542.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    lowiectwo
    lasy gorskie
    odnowienia lasu
    naloty
    podrost
    gatunki roslin
    Sorbus aucuparia
    Salix caprea
    Abies alba
    Acer pseudoplatanus
    wysokosc nad poziomem morza
    ssaki kopytne
    szkody lowieckie
    zgryzanie
    obszary chronione
    Tatrzanski Park Narodowy
    stale powierzchnie obserwacyjne
    Opis:
    Effects of ungulate pressure on the development of young generation of trees is one of the most important issues in ecology and forestry. Ungulate pressure influence on the development of natural regeneration has been also reported from several national parks. Our study on the effects of ungulate browsing on the young generation of trees was conducted on more than 500 sample plots controlled during one growing season. The overall browsing pressure ranged from 7.6% in seedlings to 20.3% in low saplings. The pressure of ungulates on the regeneration of Picea abies, the dominant species in the Tatra National Park, was by and large below 1%. Broadleaved species were browsed more frequently. The relationship between the plot altitudes and browsing intensity was statistically significant for seedlings and low saplings; at the higher altitudes, the browsing pressure was greater. There was also observed a statistically significant relationship between the type of former management and the browsing degree in seedlings; in the areas subjected to “landscape protection”, the intensity of browsing was higher when compared to strictly protected areas. Pressure exerted by ungulates on tree regeneration was very unevenly distributed, i.e. some plots were heavily browsed and many others - not browsed at all. The most affected tree species were Salix caprea and Sorbus aucuparia, although the percentage of browsed individuals rarely exceeded 50%. Other species favored by ungulates was Acer pseudoplatanus; despite the high browsing pressure, this species was present among seedlings and tall saplings, suggesting that it would be able to recruit to the tree layer. Abies alba was browsed less frequently than the deciduous trees; however, among the tall saplings it was the third most browsed species.
    Źródło:
    Leśne Prace Badawcze; 2017, 78, 3
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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