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Keyword: aspen

Extent of decay associated with Fomes igniarius sporophores in Colorado aspen

Publications Posted on: July 03, 2008
The most destructive decay of aspen (Populus tremuloides Michx.) is caused by Fomes igniarius var. populinus (Neu.) Camb. This fungus accounted for 59 percent of the decay found in a recent study of aspen in Colorado. It is almost impossible to find stands of any age that are not damaged to some degree by F. igniarius, and trees with advanced stages of decay usually bear numerous sporophores or conks.

Aspen indicator species in lichen communities in the Bear River range of Idaho and Utah

Publications Posted on: November 09, 2007
Aspen are thought to be declining in this region due to a combination of fire suppression, grazing and wildlife management practices, and potentially cool/wet climates of the past century which favor advancing conifer succession. Many scientists are concerned that aspen's related species may also be losing habitat, thereby threatening the long-term local and regional viability of this important community.

Complex interactions shaping aspen dynamics in the Greater Yellowstone Ecosystem

Publications Posted on: September 04, 2007
Loss of aspen (Populus tremuloides) has generated concern for aspen persistence across much of the western United States. However, most studies of aspen change have been at local scales and our understanding of aspen dynamics at broader scales is limited. At local scales, aspen loss has been attributed to fire exclusion, ungulate herbivory, and climate change.

Predicting Ground Fire Ignition Potential in Aspen Communities

Publications Posted on: February 02, 2007
Fire is one of the key disturbances affecting aspen (Populus tremuloides Michx.) forest ecosystems within western Canadian wildlands, including Elk Island National Park. Prescribed fire use is a tool available to modify aspen forests, yet clearly understanding its potential impact is necessary to successfully manage this disturbance.

Ecology, biodiversity, management, and restoration of aspen in the Sierra Nevada

Publications Posted on: September 15, 2006
This report was commissioned by the USDA Forest Service Lake Tahoe Basin Management Unit to synthesize existing information on the ecology and management of aspen (Populus tremuloides) in the Sierra Nevada of California and surrounding environs. It summarizes available information on aspen throughout North America from published literature, internal government agency reports, and experienced scientists and managers.

Demography of Lewis's Woodpecker, breeding bird densities, and riparian aspen integrity in a grazed landscape

Publications Posted on: August 08, 2006
Aspen (Populus tremuloides) riparian woodlands are extremely limited in distribution throughout the western U.S., yet these habitats have a disproportionate value to breeding birds. Aspen habitats are also considered prime sheep and cattle summer range, particularly in the semiarid Intermountain West. Such concentrated use has raised concern about the effects of sheep and cattle grazing on these habitats.