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Ecosystem

Displaying 5741 - 5760 of 6068 results

This FEIS species review synthesizes information on the relationship of Celtis laevigata var. reticulata (netleaf hackberry) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on…
Author(s): D. A. Tirmenstein
Year Published:

Organizations often suffer because workers and managers avoid embarrassment by turning a blind eye toward mistakes. This book focuses on errors that are consciously buried in order to avoid situations that might damage individual reputations. Using…
Author(s): Chris Argyris
Year Published:

This chapter overviews the history of hazard management in the United States, and defines what constitutes a “disaster” by federal standards. Popkin provides a history of federal and state policies and programs established and maintained in the…
Author(s): Roy S. Popkin
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:

Describes an ecological process model of succession that simulates long-term stand dynamics in forests of the Northern Rocky Mountains. This model is used to evaluate the effects of various fire regimes, including prescribed burning and fire…
Author(s): Robert E. Keane, Stephen F. Arno, James K. Brown
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:

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 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:

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:

This FEIS species review synthesizes information on the relationship of Sambucus nigra subsp. cerulea (blue elderberry) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Marilyn F. Crane
Year Published:

Over the past three days we have been presented with the results of a most impressive quantity and quality of research on the effects of fire on watersheds. My attempt to summarize these papers will hardly do them justice, but hopefully will…
Author(s): Nicholas Dennis
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:

Thirty-day forecasts of fire potential are needed, and can be computed using a variety of monthly fire weather indices. But which indices are most related to monthly fire severity? Correlation analysis was used to determine the relationships between…
Author(s): M. H. McCutchan, William A. Main
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:

Organizations need reliable ways to adjust business practices when work conditions change. A proven method of successfully learning and applying organizational best practices is through a process called benchmarking. This book introduces the…
Author(s): Robert C. Camp
Year Published:

Few studies have examined the effect of fire on the aquatic biota, and none has adequately addressed major aspects of aquatic ecosystem function. Most of the research has examined the effects of fire on water chemistry (Schindler et al. 1980,…
Author(s): G. Wayne Minshall, James T. Brock, John D. Varley
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:

As with any other skill, the ability to make effective decisions can be taught and improved upon. Russo and Shoemaker provide a guide to systematic decision making by delineating several key points in the decision making process. The first step in…
Author(s): J. Edward Russo, Paul J. H. Shoemaker
Year Published:

This FEIS species review synthesizes information on the relationship of Salix lutea (yellow willow) 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: