Hedgren, Per Olof
- Institutionen för entomologi, Sveriges lantbruksuniversitet
Sammanfattning
Wind-felled Norway spruce trees left for conservation purposes and spruce stems stored as forest fuel may be colonised by the bark beetles Ips typographus and Pityogenes chalcographus (Coleoptera: Scolytidae). The risk of nearby living trees being attacked and killed by these species was experimentally investigated at stand edges bordering fresh clearcuts. Attack by I. typographus was studied at edges of mature spruce with one, five or no cut trees. Attack by P. chalcographus was studied within plots on edges of young spruce. The plots contained piles of cut young trees, or no piles. Number of trees killed by I. typographus did not differ between edges with and without cut trees, or between edges with one and five cut trees. Tree-killing was more frequent close (
Nyckelord
Ips typographus; Pityogenes chalcographus; Scolytidae; bark beetle; reproductive success; tree killing; Picea abies; Norway spruce; stand edges; windfall; windthrown; wind-felled trees; GROT; dead wood; saproxylic
Publicerad i
Acta Universitatis Agriculturae Sueciae. Silvestria
2002, nummer: 247
Utgivare: Swedish University of Agricultural Sciences
SLU författare
UKÄ forskningsämne
Skogsvetenskap
Publikationens identifierare
- ISBN: 91-576-6331-9
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/107580