Skip to Main Content
Insects of whitebark pine with emphasis on mountain pine beetleAuthor(s): Dale L. Bartos; Kenneth E. Gibson
Source: In: Schmidt, Wyman C.; McDonald, Kathy J., compilers. Proceedings-symposium on whitebark pine ecosystems: Ecology and management of a high-mountain resource; 1989 March 29-31; Bozeman, MT. Gen. Tech. Rep. INT-GTR-270. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. p.
Publication Series: General Technical Report (GTR)
Station: Intermountain Forest Experiment Station
PDF: Download Publication (679.25 KB)
DescriptionFew insects that live on whitebark pine (Pinus albicaulis) are considered pests or potential pests. Those that inhabit cones can cause reductions in reproduction of the tree by destroying seed crops. Decreases in food for animals ranging from squirrels to grizzly bears may also result.
A single insect species, mountain pine beetle (Dendroctonus ponderosae) (MPB), may cause serious damage to whitebark pine over much of its range by killing mature trees. Through periodic epidemic outbreaks, the resultant tree killing causes reductions in seed cones and so decreases food supplies for various animals. Excessive mortality of whitebark pine can lead to increases in other tree species, and decreases in whitebark pine, in some future stands.
A survey of MPB damage in the whitebark pine zone was conducted in Yellowstone National Park, Gallatin National Forest, and Flathead National Forest from 1983 to 1988. Preliminary results show 22 to 44 percent of the whitebark pine had been killed by MPB during the recent past. Losses were strongly related to elevation-decreasing mortality with increasing elevation. Losses were heaviest in the lodgepole pine-whitebark pine ecotone. Implications of such losses are discussed.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationBartos, Dale L.; Gibson, Kenneth E. 1990. Insects of whitebark pine with emphasis on mountain pine beetle. In: Schmidt, Wyman C.; McDonald, Kathy J., compilers. Proceedings-symposium on whitebark pine ecosystems: Ecology and management of a high-mountain resource; 1989 March 29-31; Bozeman, MT. Gen. Tech. Rep. INT-GTR-270. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. p.
Keywordswhitebark pine, Pinus albicaulis, mountain pine beetle, Dendroctonus ponderosae
- A landscape-level assessment of whitebark pine regeneration in the Rocky Mountains, USA
- Climate influences on whitebark pine mortality from mountain pine beetle in the Greater Yellowstone Ecosystem
- FireWorks curriculum featuring ponderosa, lodgepole, and whitebark pine forests
XML: View XML