[Silviculture of two heliophilic tree species, and insect fauna diversity. Surveys in naturally regenerated sessile oak (Quercus petraea (Matt). Liebl.) and Scots pine (Pinus sylvestris L.) stands in the lower parts of the Gorges de l'Areuse (Neuchatel) [Switzerland]] | Sylviculture de deux essences heliophiles et diversitede l'entomofaune. Observations menees dans des rajeunissements naturels de chene sessile (Quercus petraea (Matt). Liebl.) et de pin sylvestre (Pinus sylvestris L.) dans la partie basse des Groges de l'Areuse (Neuchatel) [Suisse]
1997
Junod, P. (Ingenieur forestier du 3e arrondissement,Cortaillod (Switzerland)) | Barbalat, S. | Plachta, M.
This paper presents the characteristics of two heliophilics, the sessile oak (Quercus petraea (Matt.) Liebl.) and the Scots pine (Pinus sylvestris L.), which require shelter-wood felling for their regeneration. An entomological study concerning four wood beetle families (Buprestidae, Cerambycidae, Lucanidae and phytophagous Scarabaeidae) was carried out in these clearings. They appeared to be very favourable to the studied fauna mainly because they allow light and heat to reach the ground. The importance of certain structures which are favourable for these insects such as stumps or branch heaps has been shown and some beetles which colonize them are presented. Concrete measures to increase biodiversity in forests, such as the conservation of fallen stems or old trees are also presented
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