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Ecosystem

Displaying 5241 - 5260 of 6066 results

This FEIS species review synthesizes information on the relationship of Gutierrezia sarothrae (broom snakeweed) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): D. A. Tirmenstein
Year Published:

Descriptions of critical fire weather patterns from across the United States. Watch out conditions discussed.
Author(s):
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In many western Montana ponderosa pine (Pinus ponderosa) stands, fire suppression and past selective logging of large trees have resulted in conditions favoring succession to dense stands of shade-tolerant, but insect- and disease-prone Douglas-fir…
Author(s): Donald J. Bedunah, Michael G. Harrington, Dayna M. Ayers
Year Published:

The principal native trees in the semiarid regions of southern Alberta are riparian cottonwoods. These include narrowleaf cottonwood, Populus angustifolia James, balsam poplar, Populus balsamifera ssp. balsamifera L., black cottonwood, Populus…
Author(s): Lori A. Gom, Stewart B. Rood
Year Published:

In 1974, two clearcuts, two shelterwoods, and two sets of eight group selections (equally divided between two elevation zones) were harvested on the Coram Experimental Forest in northwestern Montana. Four levels of tree and residue utilization were…
Author(s): Raymond C. Shearer, Jack A. Schmidt
Year Published:

We assessed the influence of riparian disturbance on 26 stream variables in Linesville Creek and six tributaries, in northwestern Pennsylvania, USA. Redundancy analysis, a canonical ordination technique. was used in three separate analyses to test…
Author(s): M. Henry H. Stevens, Kenneth W. Cummins
Year Published:

This FEIS species review synthesizes information on the relationship of Bouteloua hirsuta (hairy grama) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Elena Zlatnik
Year Published:

This booklet presents land management recommendations to help bird communities in sagebrush habitats. It was prepared for the Western Working Group of Partners in Flight, a partnership of private citizens, industry groups, government agencies,…
Author(s): Christine Paige, Sharon Ritter
Year Published:

Fire history investigations were carried out in three widely separated Great Basin pinyon-juniper woodlands in east-central Nevada, southeastern Oregon and northwestern Nevada, and western Nevada. Study results suggested frequent fires on deep soils…
Author(s): George E. Gruell
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National forests of the dry, interior portion of the western United States that are managed by the Department of Agriculture's Forest Service have undergone significant changes over the last century and a half, becoming much denser, with fewer…
Author(s): United States General Accounting Office
Year Published:

This FEIS species review synthesizes information on the relationship of Amelanchier utahensis (Utah serviceberry) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Elena Zlatnik
Year Published:

As pinyon-juniper have increased their dominance throughout the Great Basin, other perennial plants have declined in abundance. Riparian areas traditionally have the greatest biodiversity found in the region. The increase of pinyon-juniper can…
Author(s): G. Allen Rasmussen, Robin J. Tausch, Stephen C. Bunting
Year Published:

The flea beetle, Aphthona nigriscutis Foudras, is a potentially useful agent for biological control of leafy spurge (Euphorbia esula L.) in grasslands devoted to wildlife conservation. However, effects of other grassland management practices on the…
Author(s): David P. Fellows, Wesley E. Newton
Year Published:

The Snake River Plain forms a 6 million ha arc-shaped depression across southern Idaho. Basalt flows, fresh water sediments, loess and volcanic deposits cover its surface. Elevation increases eastward from 650 to 2,150 m altitude. Climate is semi-…
Author(s): Nancy L. Shaw, Victoria A. Saab, Stephen B. Monsen, T. D. Rich
Year Published:

This FEIS species review synthesizes information on the relationship of Grayia spinosa (spiny hopsage) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): D. A. Tirmenstein
Year Published:

Prescribed burning is used to achieve a variety of silvicultural objectives, including controlling heavy fuel accumulation, exposing mineral soil, releasing available nutrients for seedbed preparation, and controlling certain insects, diseases, and…
Author(s): Kevin R. Russell, David H. Van Lear, David C. Guynn, Jr.
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The 1988 fires in Yellowstone National Park provided an opportunity to study effects of a large infrequent disturbance on a natural community. This study addressed two questions: (1) How does prefire heterogeneity of the landscape affect postfire…
Author(s): Monica G. Turner, William H. Romme, Robert H. Gardner
Year Published:

This FEIS species review synthesizes information on the relationship of Chrysothamnus viscidiflorus (green rabbitbrush) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): D. A. Tirmenstein
Year Published:

Wildland fire operations are conducted in a high-risk environment. Individuals involved in all aspects of fire management are subject to the dangers of burnovers, vehicle and aircraft accidents, and medical emergencies. Between 1990 and 1998, 133…
Author(s): Richard Mangan
Year Published:

The Federal Wildland Fire Management Policy and Program Review, chartered and completed in 1995, represents the latest stage in the evolution of wildland fire management. The concept of appropriate management response is central to this policy.…
Author(s): G. Thomas Zimmerman
Year Published: