Phylogeographic Analysis of the Douglas-fir Beetle Dendroctonus pseudotsugae Hopkins (Coleoptera: Curculionidae: Scolytinae)

Population genetic structure studies made in genus Dendroctonus have been conducted from the perspectives of allopatric and sympatric models. In the first case, host effect and historical contingency were not recognized as a source of variation, while the later considered the host itself as a source of reproductiv