Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: ekoton las-pastwisko

Sortuj według:

Ogranicz wyniki do:

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Żerowanie konika polskiego w strefie brzegowej siedlisk leśnych o różnym zwarciu koron

100%

Klich D., Grudzinska K.

Sylwan

2016

tom 160

nr 01

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.

Ograniczanie wyników

1 Sylwan

1 Grudzinska K.

1 Klich D.

1 2016

Wyniki wyszukiwania

Żerowanie konika polskiego w strefie brzegowej siedlisk leśnych o różnym zwarciu koron