Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Shore, T., L. Safranyik, W. Riel, M. Ferguson, and J. Castonguay. 1999. Evaluation of factors affecting tree and stand susceptibility to the Douglas-fir beetle (Coleoptera: Scolytidae) . The Canadian Entomologist 131:831-839.