Winter food caches of beavers Castor fiber in NE Poland

• Autorzy: Dzieciolowski R. , Misiukiewicz W.
• Języki publikacji: EN

Abstrakty

EN

Winter food caches of beavers Castor fiber Linnaeus, 1758 were examined in 16 locations within the Suwałki region (north-eastern Poland). Four caches were selected to represent each of four habitat types: river, lake, farmland, and oligotrophic small reservoir called 'suchar'. Altogether, 92 509 twigs and branches of 15 woody species were identified and measured. Individual caches, with one exception, included branches of only 4 or 5 species. Willows Salix sp., birches Betula sp., alder Alnus glutinosa, trembling aspen Populus tremula, and mountain ash Sorbus aucuparia occurred in caches from all four habitats studied. Willows alone constituted 62.5% of the total number of branches cached. Willows, together with birch, hazel Corylus avellana, alder, and trembling aspen, amounted to 97% of all branches in caches. The remaining 10 species provided only 3% of the branches cached. Most branches were 0.5-1 m long and <3 cm thick at their base. Contents of food caches provided a good indication of winter diet and possibly food preference of beavers.

Słowa kluczowe

EN

diet; food caching behaviour; beaver; woody species; Poland; winter diet; winter; cache location; Castor fiber

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 2002
• Tom: 47
• Numer: 4
• Opis fizyczny: p.471-478,fig.,ref.

Twórcy

autor

Dzieciolowski R.

• Warsaw Agricultural University, Rakowiecka 26/30, 02-528 Warsaw, Poland

autor

Misiukiewicz W.

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