Institution: | 1. Ecosystem Science and Management Program, University of Northern British Columbia, , Prince George, V2N 4Z9 British Columbia, Canada;2. Department of Entomology, University of Minnesota, , St Paul, MN, 55108 U.S.A.;3. Canadian Forest Service, Natural Resources Canada, University of Northern British Columbia, , Prince George, V2N 4Z9 British Columbia, Canada |