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Ecosystem

Displaying 5341 - 5360 of 5953 results

I was disappointed with the OSHA report of the South Canyon Fire. My feelings are not the result of any need to defend my agency (USDA Forest Service). In another time and place, I thought the OSHA report following the death of Bill Martin (a…
Author(s): James M. Saveland
Year Published:

Physical characteristics, benthic macroinvertebrates, and periphyton assemblages in two adjacent headwater streams in Yellowstone National Park were evaluated five years after the 1988 wildfires. The catchment of one stream was burned by wildfire (…
Author(s): G. Wayne Minshall, Christopher T. Robinson, Todd V. Royer, Samuel R. Rushforth
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During the two breeding seasons immediately following the numerous and widespread fires of 1988, I estimated bird community composition in each of 34 burned-forest sites in western Montana and northern Wyoming. I detected an average of 45 species…
Author(s): Richard L. Hutto
Year Published:

ANNOTATION: This article provides several harvest cost estimation methods for forest managers. Methods discussed include elements of stump-to-truck timber harvest cost estimation methods in ecosystem restoration prescriptions. Particular attention…
Author(s): Charles E. Keegan, Carl E. Fiedler, Fred J. Stewart
Year Published:

Programs aimed at enhancing safety by addressing the proximate cause of an accident only consider a small portion of the safety picture. Merely addressing the proximate cause fails to consider that the system either directly or indirectly trains,…
Author(s): Curt Braun
Year Published:

Following fire, changes in streamflow and bank stability in burned watersheds can mobilize coarse woody debris. In 1990 and 1991, I measured characteristics of coarse woody debris and standing riparian trees and snags in Jones Creek, a watershed…
Author(s): Michael K. Young
Year Published:

This FEIS species review synthesizes information on the relationship of Brachylagus idahoensis (pygmy rabbit) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Julie L. Tesky
Year Published:

This FEIS species review synthesizes information on the relationship of Ratibida columnifera (upright prairie coneflower) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Roberta A. Walsh
Year Published:

This FEIS species review synthesizes information on the relationship of Chimaphila umbellata (pipsissewa) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Robin F. Matthews
Year Published:

This FEIS species review synthesizes information on the relationship of Bromus vulgaris (Columbia brome) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Roberta A. Walsh
Year Published:

This FEIS species review synthesizes information on the relationship of Bromus ciliatus (fringed brome) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Lora L. Esser
Year Published:

The demand for climatological precipitation fields on a regular grid is growing dramatically as ecological and hydrological models become increasingly linked to geographic information systems that spatially represent and manipulate model output.…
Author(s): Christopher Daly, Ronald P. Neilson, Donald L. Phillips
Year Published:

Sagebrush is considered to be an obligate vesicular-arbuscular mycorrhizal plant. Some studies have shown that burning lowers the mycorrhizal inoculum potential (MIP) of the soil (Klopatek and others 1988, 1990; Wicklow-Howard 1989). If this happens…
Author(s): Jan E. Gurr, Marcia Wicklow-Howard
Year Published:

This FEIS species review synthesizes information on the relationship of Hierochloe odorata (sweetgrass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Roberta A. Walsh
Year Published:

During the 1988 fires in the GYE, Minshall et al. (1989) observed fish kills in streams, but the extent and causes of mortality were not reported. While conducting other studies of watersheds in the GYE, we observed a fish kill in a burned watershed…
Author(s): Michael K. Young, Michael A. Bozek
Year Published:

Big sagebrush (Artemisia tridentata) seedling recruitment is limited by seed production and dispersal in space and time, by genetic constraints of specific ecotypes, and by environmental factors that include weather, microsite attributes, soil…
Author(s): Susan E. Meyer
Year Published:

This FEIS species review synthesizes information on the relationship of Deschampsia elongata (slender hairgrass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Lora L. Esser
Year Published:

This FEIS species review synthesizes information on the relationship of Aquila chrysaetos (golden eagle) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Julie L. Tesky
Year Published:

This FEIS species review synthesizes information on the relationship of Carex capitata (capitate sedge) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Roberta A. Walsh
Year Published:

The transport of stream bedload sediment was monitored continuously in a small stream from 1975 to 1982 following forest fires in 1974 and 1980. The stream is located in the east subcatchment (170 ha) of Lake 239 in the Experimental Lakes Area,…
Author(s): Kenneth G. Beaty
Year Published: