Stand Replacing Fires Reduce Susceptibility of Lodgepole Pine to Mountain Pine Beetle Outbreaks in Colorado
Journal of Biogeography
John Wiley and Sons, Inc.
As climate change is increasing the frequency, severity and extent of wildfire and bark beetle outbreaks, it is important to understand how these disturbances interact to affect ecological patterns and processes, including susceptibility to subsequent disturbances. Stand-replacing fires and outbreaks of mountain pine beetle (MPB), Dendroctonus ponderosae, are both important disturbances in the lodgepole pine, Pinus contorta, forests of the Rocky Mountains. In the current study we investigated how time since the last stand-replacing fire affects the susceptibility of the stand to MPB outbreaks in these forests. We hypothesized that at a stand-scale, young post-fire stands (100–150 years old) are less susceptible to past and current MPB outbreaks than are older stands.
Kulakowski, D.; Jarvis, D.; Veblen, T.T; Smith, J. Stand replacing fires reduce susceptibility of lodgepole pine to mountain pine beetle outbreaks in Colorado. J. Biogeogr. 2012, 39, 2052-2060