Forest Sciences Commons^™

Do Pine Trees In Aspen Stands Increase Bird Diversity, Mark A. Rumble, Todd R. Mills, Brian L. Dystra, Lester D. Flake

Aspen Bibliography

In the Black Hills of South Dakota, quaking aspen (Populus tremuloides) is being replaced by conifers through fire suppression and successional processes. Al- though the Black Hills National forest is removing conifers (primarily ponderosa pine [Pinus ponderosa])toincreasetheaspencommunitiesinsomemixedstands,ForestPlan guidelines allow four conifers per hectare to remain to increase diversity in the remaining aspen stand. We compared bird species richness in pure ponderosa pine, mixed stands dominated by ponderosa pine with quaking aspen, mixed stands dominated by aspen

with ponderosa pine, and pure aspen stands. Stands dominated by ponderosa pine had lower (P

Evaluation Of Burned Aspen Communities In Jackson Hole, Wyoming, Charles E. Kay

Aspen Bibliography

Aspen has been declining in Jackson Hole for many years, a condition generally attributed to the fact that lightning fires have been aggressively suppressed since the early 1900s. It is also believed that burning will successfully regenerate aspen stands despite high elk numbers. To test this hypothesis, I evaluated 467 burned and 495 adjacent, unburned aspen stands at eight different locations within Jackson Hole. Aspen suckering was stimulated by burning, but most aspen stands still failed to produce new stems greater than 2 m tall where ungulate use was moderate or high. Only when elk use was low were burned …