DISPERSAL OF THE SPRUCE BEETLE, DENDROCTONUS-RUFIPENNIS, AND THE ENGRAVER BEETLE, IPS-PERTURBATUS IN ALASKA

Authors
WERNER RA HOLSTEN EH
Citation
Ra. Werner et Eh. Holsten, DISPERSAL OF THE SPRUCE BEETLE, DENDROCTONUS-RUFIPENNIS, AND THE ENGRAVER BEETLE, IPS-PERTURBATUS IN ALASKA, Research paper PNW, (501), 1997, pp. 1
Citations number
22
Categorie Soggetti
Forestry
Journal title
Research paper PNW → ACNP
ISSN journal
08825165
Issue
501
Year of publication
1997
Database
ISI
SICI code
0882-5165(1997):501<1:DOTSBD>2.0.ZU;2-8
Abstract
Mark-release-recapture experiments were performed with spruce beetles (Dendroctonus rufipennis (Kirby)) and Ips engraver beetles (Ips pertur batus (Eichhoff)) to determine distance and direction of dispersal. Th e recapture rate of beetles marked with fluorescent powder was extreme ly low. Most I. perturbatus beetles dispersed up to 30 m from their ov erwintering sites compared to most D. rufipennis, which dispersed from 90 to 300 m. Ips perturbatus beetles were caught up to 90 m and D. ru fipennis up to 600 m from the point of release.