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Ecosystem

Displaying 5241 - 5260 of 6073 results

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:

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.
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 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 Hesperostipa comata (needle-and-thread grass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Elena Zlatnik
Year Published:

This FEIS species review synthesizes information on the relationship of Artemisia tripartita subsp. rupicola, Artemisia tripartita subsp. tripartita (Wyoming threetip sagebrush, tall threetip sagebrush) to fire--how fire affects the species and its…
Author(s): D. A. Tirmenstein
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:

In this chapter, Kantor and Ober introduce a model for dealing with conflicts that arise when employees are resistant to organizational change. Change situations are high stakes situations that cause greater fear and anxiety than low stakes…
Author(s): David Kantor, Steven Ober
Year Published:

Prescribed fire is used as a site treatment after timber harvesting. These fires result in spatial patterns with some portions consuming all of the forest floor material (duff) and others consuming little. Prior to the burn, spatial sampling of duff…
Author(s): Peter R. Robichaud, S. M. Miller
Year Published:

Hedysarum (Hedysarum spp.) roots are a primary food of grizzly bears (Ursus arctos) in the Front Ranges of the Canadian Rocky Mountains. I studied the effects of recent forest fire on yellow hedysarum (H. sulphurescens) habitat by comparing root…
Author(s): David Hamer
Year Published:

The “Harvard Method,” as it is sometimes called, emphasizes the importance of easy two-way communication. Yet in both negotiations and daily life, for good reasons or bad, we often don’t talk to each other, and don’t want to. And sometimes when we…
Author(s): Douglas Stone, Bruce Patton, Sheila Heen
Year Published:

Pinyon-juniper woodlands involve vegetation dominated by about seven species of Pinus and 17 species of Juniperus scattered over more than 75 million acres of the Southwestern United States and Mexico. The junipers are more widespread latitudinally…
Author(s): Neil E. West
Year Published:

The 1996 fire season illustrated the potential impacts of wildland fires on the Bureau of Land Management (BLM) administered lands through numerous western states. During the 1996 fire season, over six million acres burned in the United States…
Author(s): Thomas C. Roberts
Year Published:

Forest scientists ask that everyone, from the home gardener to the forest manager, help revive western white pine by planting it everywhere, even in nonforest environments such as our neighborhood streets, parks, and backyards. White pine, long ago…
Author(s): Leon F. Neuenschwander, James W. Byler, Alan E. Harvey, Geral I. McDonald, Denise S. Ortiz, Harold L. Osborne, Gerry C. Snyder, Arthur Zack
Year Published:

This FEIS species review synthesizes information on the relationship of Juniperus osteosperma (Utah juniper) 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 FEIS species review synthesizes information on the relationship of Achnatheruum hymenoides (Indian ricegrass) 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:

In every organization, things go wrong. For the most part, these errors are minor and often go unnoticed. However, when disaster occurs, external pressure often forces the exposure of many of the failures that occur within an organization. Thus, a…
Author(s): Andrew Hopkins
Year Published:

This FEIS species review synthesizes information on the relationship of Artemisia tridentata subsp. tridentata (basin big sagebrush) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also…
Author(s): D. A. Tirmenstein
Year Published:

Living things change constantly, as do communities of living things. In a forest, where individual trees can live for centuries and new plants replace old plants, it is not easy to visualize the changes that occur over time. Luckily, we have some…
Author(s): Helen Y. Smith, Stephen F. Arno
Year Published:

This assessment of Montana used data collected from Forest Inventory and Analysis (FIA) plots across Montana and summarized by forest type, density, and structure. The focus of the analysis was on ponderosa pine/Douglas fir/ dry mixed conifer…
Author(s): Carl E. Fiedler, Charles E. Keegan, Daniel P. Wichman, Stephen F. Arno
Year Published: