Yellowstone National Park Report
A research project was initiated in 1980 to study the effects of outbreaks of the mountain pine beetle (Dendroctonus ponderosae) on lodgepole pine forest (Pinus contorta spp. latifolia) in Yellowstone National Park and surrounding areas. This native bark beetle recently has killed millions of trees over thousands of square kilometers in the central and northern Rocky Mountains. Major outbreaks first occurred in Grand Teton National Park in the 1950's and in Yellowstone National Park in the 1960's. The outbreak in Yellowstone Park is still spreading.
Romme, W. H.; Yavitt, J. B.; Knight, D. H.; and Fedders, J.
"Mountain Pine Beetle Infestation: Cycling and Succession in Lodgepole Pine Forest,"
University of Wyoming National Park Service Research Center Annual Report: Vol. 7
, Article 23.
Available at: http://repository.uwyo.edu/uwnpsrc_reports/vol7/iss1/23