Weslien, J., and J. Regnander. 1990. Colonization densities and offspring production in the bark beetle Ips typographus (L) in standing spruce trees . Journal of Applied Entomology 109:358-366.
Weslien & Regnander 1990
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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