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Articles containing the keyword 'Sciurus vulgaris'

Category : Article

article id 4727, category Article
Erkki Pulliainen, Kalervo Salonen. (1965). Orava männyn siemen- ja silmutuholaisena. Silva Fennica no. 117 article id 4727. https://doi.org/10.14214/sf.a14285
English title: Damage caused by squirrel (Sciurus vulgaris) to pine-buds.
Original keywords: mänty; taimituhot; kasvutappiot; orava; silmut
English keywords: Pinus sylvestris; Scots pine; seedling damages; squirrels; Sciurus vulgaris; buds
Abstract | View details | Full text in PDF | Author Info

When the seed harvest of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) H. Karst.) are low, pine and spruce buds are among the secondary food items of squirrel (Sciurus vulgaris L.) in Finland. In this study, conducted in Nokia in Southern Finland in 1962-1963, eating of pine buds by squirrel is described. The eaten buds in 15-years old Scots pine seedlings were recorded in two seedling stands.

According to the results, the squirrels selected the largest buds of the best seedlings in the studied stands. In over 50% of the cases the squirrels chose only the buds of the leading shoot, especially the terminal bud. In half of the trees, a side bud of the leading shoot continued the growth, which causes form defects in the trees. In 35% of the damaged trees, a lateral branch continued the growth. Well-growing seedling stands may be especially susceptible for damages caused by, for instance, squirrels.

The PDF includes a summary in Finnish.

  • Pulliainen, E-mail: ep@mm.unknown (email)
  • Salonen, E-mail: ks@mm.unknown

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