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Ecosystem

Displaying 5721 - 5740 of 6051 results

An empirical model for predicting deposition of coarse-textured debris flows in confined mountain channels is developed based on field measurements of 14 debris flows in the Pacific Northwest, U.S.A. The model uses two criteria for deposition:…
Author(s): Lee E. Benda, Terrance W. Cundy
Year Published:

This FEIS species review synthesizes information on the relationship of Xerophyllum tenax (beargrass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Marilyn F. Crane
Year Published:

Regardless of the mixture of land management objectives, quantification of the type of stands that will meet these objectives, target stands, is needed. Quantification of target stands is essential as the starting point for the diagnosis of…
Author(s): Jimmie D. Chew
Year Published:

Whitebark pine (Pinus albicaulis) is a valuable wildlife resource in the western United States and southwestern Canada. Its large seeds are a preferred food for a variety of birds and mammals, especially Clark's nutcrackers (Nucifraga columbiana),…
Author(s): Katherine Kendall, Stephen F. Arno
Year Published:

A successional process model has been adapted for use with species from ponderosa pine/Douglas-fir (Pinus ponderosa var. ponderosa)/(Pseudotsuga menziesii var. glauca) forests of the inland Northwest. Its design allows modification for application…
Author(s): Robert E. Keane, Stephen F. Arno, James K. Brown
Year Published:

Fire affects spawning areas and food habitat in streams by indirectly influencing waterflow, nutrients, erosion, sedimentation, debris, and water temperature. The response of vegetation following fire is the most important factor affecting aquatic…
Author(s): James K. Brown
Year Published:

This book takes a systems approach to organizational learning. Senge argues that “a learning organization is a place where people are continually discovering how they create reality. And how they can change it”. This book explains why a learning…
Author(s): Peter Senge
Year Published:

Fire affects spawning areas and food habitat in streams by indirectly influencing waterflow, nutrients, erosion, sedimentation, debris, and water temperature. The response of vegetation following fire is the most important factor affecting aquatic…
Author(s): James K. Brown
Year Published:

This FEIS species review synthesizes information on the relationship of Alnus viridis subsp. sinuata (Sitka alder) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Ronald Uchytil
Year Published:

This FEIS species review synthesizes information on the relationship of Rubus ursinus (trailing blackberry) 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:

Make Every Decision Your Best Decision Executives rate decision-making ability as the most important business skill, but few people have the training they need to make good decisions consistently. Becoming a good decision-maker is like training to…
Author(s): J. Edward Russo, Paul J. H. Schoemaker
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This FEIS species review synthesizes information on the relationship of Alnus rubra (red alder) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species' taxonomy,…
Author(s): Ronald Uchytil
Year Published:

Selected forage species were sampled during the first and second summers after autumn prescribed burning of three sites in southeastern Idaho. They were analyzed for in vitro dry matter digestibility, protein, calcium, and phosphorus. This aspen…
Author(s): Norbert V. DeByle, Philip J. Urness, Deborah L. Blank
Year Published:

Maintaining an ecosystem shaped primarily by natural geological and ecological processes is a primary goal in Yellowstone National Park (YNP) (Houstori 1971). Thus, one important question about the fires of 1988 is whether they were really natural:…
Author(s): William H. Romme, Don G. Despain
Year Published:

This FEIS species review synthesizes information on the relationship of Alnus rhombifolia (white alder) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Janet L. Fryer
Year Published:

Shrub frequency, cover, and height, and herb frequency and cover were measured on plots from two Douglas-fir habitat types in three cutting units. The plots were measured prior to helicopter yarding and broadcast burning and then 1, 2, 5, and 10…
Author(s): Kathy Geier-Hayes
Year Published:

Adjacent headwater streams were monitored for postfire shade, summer streamflow and maximum water temperature following the 40,000 ha Silver Complex fire in southern Oregon. Average postfire shade (30 percent) for the three streams was considerably…
Author(s): Michael Amaranthus, Howard Jubas, David Arthur
Year Published:

Ammonium-based fire retardants are important in managing wildfires, but their use can adversely affect water quality. Their entry, fate, and impact were studied in five forest streams. Initial retardant concentrations in water approached levels…
Author(s): Logan A. Norris, Warren L. Webb
Year Published:

In order to make reliable decisions, organizations need to have reliable access to critical information. However, high velocity environments place severe restrictions on information flow. Despite this handicap, many organizations in high velocity…
Author(s): Kathleen Eisenhardt
Year Published:

This FEIS species review synthesizes information on the relationship of Salix lemmonii (Lemmons willow) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Ronald Uchytil
Year Published: