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Timber import and the risk of forest pest introductions |
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| Authors: | Olav Skarpaas Bjørn Økland |
| Institution: | Norwegian Institute for Nature Research, Gaustadalléen 21, NO-0349 Oslo, Norway;;and Norwegian Forest and Landscape Institute, Box 115, N-1431 Ås, Norway |
| Abstract: | |
| Keywords: | bark beetles biological invasions dispersal forest pests Gompertz model Ips sp pest risk assessment propagule pressure timber import trade |