Abstract

Standing Norway spruce (Picea abies) trees attacked by the spruce bark beetle are often logged to reduce the risk of future bark beetle attacks. This study focuses on the potential ecological value of such trees. The study was conducted in six reserves in Sweden that were hit by a storm in 1995 and suffered from tree mortality caused by the spruce bark beetle, Ips typographus (L.) (Col.; Curculionidae). The volumes of storm-felled trees and of standing trees killed by the spruce bark beetle were recorded during 5 years after the storm. In the present study five of the six reserves were revisited in 2006. Of the dead standing wood, 81% was created by the spruce bark beetle, while 19% constituted of stumps from trees broken by the storm. Thirty-seven per cent of the beetle-killed trees remained standing in 2006, 8-9 years after tree death. A significantly higher frequency of fruiting bodies of Fomitopsis pinicola on broken snags compared with on intact snags indicates that the rot caused by this fungus contributed to tree fall. Almost 30% of the bark remained on both intact and fallen snags. The ecological value of snags created by the spruce bark beetle is discussed

Published in

Scandinavian Journal of Forest Research
2007, Volume: 22, number: 6, pages: 524-530
Publisher: TAYLOR & FRANCIS AS

SLU Authors

• Schroeder, Martin

  • Department of Entomology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Forest Science
Environmental Sciences related to Agriculture and Land-use


Publication identifier

DOI: https://doi.org/10.1080/02827580701763730

Permanent link to this page (URI)

https://res.slu.se/id/publ/16285