The diversity and abundance of Coleoptera in intensively managed pine forests and clearings
2003
Voolma, K. | Ounap, H. | Sueda, I. | Sibul, I. (Estonian Agricultural University, Tartu (Estonia). Forest Research Institute)
This paper summarises the results of research on Coleoptera communities conducted over 11 years (1990-2000) in an intensively managed pine forest area of the Raepina forest district in South Estonia. Using different traps (baited ground traps, window traps and pitfalls) and traditional collection methods, more than 127,800 insects were ensnared, of which Coleoptera constituted 52 per cent. At least 310 species of the order of Coleoptera were represented; the representatives of some families were not identified to the species level. It appeared from the large number of species and specimens collected in the pine-dominated forests and clearings that rather rich-in-species insect communities, which included several species red-listed in many countries, can survive even in an intensively managed pine forest area, where small-scale clear cutting is common silvicultural practice. The large pine weevil, Hylobius abietis, proved to be the most significant pest species in the area under study. Increase felling volumes over the recent years have led to a considerable growth of its population. Species diversity preservation and pest management in pine forests are discussed
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