Moose browsing on pine and willow in the Biebrza Valley, Poland

• Autorzy: Borkowska A. , Konopko A.
• Języki publikacji: EN

Abstrakty

EN

Utilization of browse supply and moose Aices alces Linnaeus, 1758 browsing intensity in relation to tree height (0.5-3.0 m) were estimated for Scots pine in thickets and willow in willow-birch shrubs. The thickets examined provided different browse resources (0.5, 2.0 and 3.2 t dry wt/ha) and the highest utilization (about 50%) was found in the poorest one (thicket 1). In the willow-birch shrubs the use of browse was high and amounted to 85% of total production in both the winter periods studied. The number and increase of biomass of browsed twigs per stem (or plot} was generally associated with the increase of tree height. Browsing intensity depended on the tree height. Pines of 1.5-1.99 m height were characterized by the greatest browse utiliza­tion (76.3%). Moose removed significantly more biomass and twigs from pines growing in the central zone of the thicket 1 than from those growing in the marginal zone. However, in the wiilow-birch shrubs the utilization of all tree height classes was above 70% of the production and moose browsed not only the last year's growth of shoots but also that of earlier years.

Słowa kluczowe

EN

browsing; Scotch pine; pine; Salix; Alces alces; Poland; moose; Pinus sylvestris; willow; food; Biebrza River; winter food

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 1994
• Tom: 39
• Numer: 4
• Opis fizyczny: p.73-82,fig.

Twórcy

autor

Borkowska A.

• Warsaw University, Branch in Bialystok, Swierkowa 20B, 15-950 Bialystok, Poland

autor

Konopko A.

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