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Psyche
Volume 2012, Article ID 321084, 7 pages
http://dx.doi.org/10.1155/2012/321084
Research Article

Declining Bark Beetle Densities (Ips typographus, Coleoptera: Scolytinae) from Infested Norway Spruce Stands and Possible Implications for Management

1Research Unit Forest Dynamics, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland
2Department of Environmental System Sciences, Swiss Federal Institute of Technology ETH, ETH-Zentrum, 8092 Zürich, Switzerland

Received 15 September 2011; Revised 22 December 2011; Accepted 28 December 2011

Academic Editor: John A. Byers

Copyright © 2012 Alexander Angst et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

How to Cite this Article

Alexander Angst, Regula Rüegg, and Beat Forster, “Declining Bark Beetle Densities (Ips typographus, Coleoptera: Scolytinae) from Infested Norway Spruce Stands and Possible Implications for Management,” Psyche, vol. 2012, Article ID 321084, 7 pages, 2012. https://doi.org/10.1155/2012/321084.