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Ecosystem

Displaying 5321 - 5340 of 6051 results

The Yellowstone fires of 1988 affected >250000 ha, creating a mosaic of burn severities across the landscape and providing an ideal opportunity to study effects of fire size and pattern on postfire succession. We asked whether vegetation…
Author(s): Monica G. Turner, William H. Romme, Robert H. Gardner, William W. Hargrove
Year Published:

We examined the influence of a moderately severe wildfire on the thermal patterns in three small streams in central Idaho, USA, for an 11-month period beginning ten months after the fire. Two streams in unburned catchments served as reference sites…
Author(s): Todd V. Royer, G. Wayne Minshall
Year Published:

The Yellowstone fires of 1988 affected >250000 ha, creating a mosaic of burn severities across the landscape and providing an ideal opportunity to study effects of fire size and pattern on postfire succession. We asked whether vegetation…
Author(s): Monica G. Turner, William H. Romme, Robert H. Gardner, William W. Hargrove
Year Published:

Prescribed burning costs are extremely variable, even if conditions are similar. This variability complicates planning and evaluation of prescribed burning programs and budgets, resulting in imprecise projections of their economic benefits.…
Author(s): Armando Gonzalez-Caban
Year Published:

Presents detailed age structure for two western larch stands that historically experienced frequent fires. Compares age structures of eleven ponderosa pine and western larch stands representing a broad range of sites that had frequent fires.…
Author(s): Stephen F. Arno, Helen Y. Smith, Michael A. Krebs
Year Published:

The stochastic field of sediment supply to the channel network of a drainage basin depends on the large‐scale interactions among climatically driven processes such as forest fire and rainstorms, topography, channel network topology, and basin scale…
Author(s): Lee E. Benda, Thomas Dunne
Year Published:

The native salmonids of the Idaho Panhandle National Forests, bull chaff (Salvelinus confluentus) and westslope cutthroat trout (Oncorhynchus clarki lewisz) evolved with natural pulse disturbances of which the most common were fire and flood. These…
Author(s): D. Cross
Year Published:

This paper analyzes data from 339 large wildland fires that occurred in the Continental United States from 1971 through 1984. Each fire burned 1,000 acres (400 ha) or more. Each fire was associated with the nearest upper-air weather station and…
Author(s): Brian E. Potter
Year Published:

This FEIS species review synthesizes information on the relationship of Ambystoma macrodactylum (long-toed salamander) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Janet L. Howard
Year Published:

Spatially-varied hydrologic surface conditions exist on steep hillslopes after timber harvest operation and site preparation burning treatments. Site preparation burning creates low- and high-severity burn surface conditions or disturbances. In this…
Author(s): Peter R. Robichaud, T. M. Monroe
Year Published:

This book focuses on the causes, consequences, and possible means of avoiding organizational accidents. While individual accidents are more frequent and often target the individual for blame, organizational accidents are deep rooted errors in the…
Author(s): James Reason
Year Published:

Fires occur frequently in dry forests of the Inland West. Fire effects vary across the landscape, reflecting topography, elevation, aspect, slope, soils, and vegetation attributes. Patches minimally affected by successive fires may be thought of as…
Author(s): Ann Camp, Chad Oliver, Paul F. Hessburg, Richard L. Everett
Year Published:

To understand and avoid future calamities, decision makers must have a more accurate way of understanding past calamities. Most of what we know about calamities comes from eye witness accounts that favor relief efforts and damage reports rather than…
Author(s): Barry A. Turner, Nick F. Pidgeon
Year Published:

Issues related to forest health and the threat of larger, more destructive wildfires have led to major new initiatives to restructure and recompose forest communities in the western United States. Proposed solutions will depend, in part, on…
Author(s): Bruce E. Rieman, James L. Clayton
Year Published:

Water production from mountain watersheds depends on total precipitation input, the type and distribution of precipitation, the amount intercepted in tree canopies, and losses to evaporation, transpiration and groundwater. A systematic process was…
Author(s): Ward W. McCaughey, Phillip E. Farnes, Katherine J. Hansen
Year Published:

No description available.
Author(s): William H. Romme, Monica G. Turner, Robert H. Gardner, William W. Hargrove, Gerald A. Tuskan, Don G. Despain, Roy A. Renkin
Year Published:

The Fire Effects Model Extension is a new extension to FVS and the PPE that allows users to simulate the effects of fire on a number of indicators, including stand structure and composition, fuel loading, and size and density of snags. In the…
Author(s): Sarah J. Beukema, Julee A. Greenough, Donald C. E. Robinson, Werner A. Kurz, Elizabeth D. Reinhardt, Nicholas L. Crookston, Albert R. Stage
Year Published:

We investigated the short-term influence of fire on xeric sage grouse (Centrocercus urophasianus Bonaparte) brood habitat in southeastern Idaho from 1990-92.
Author(s): Richard A. Fischer, Kerry P. Reese, John W. Connelly
Year Published:

Elimination of the historic pattern of frequent low-intensity fires in ponderosa pine and pine-mixed conifer forests has resulted in major ecological disruptions. Prior to 1900, open stands of large, long-lived, fire-resistant ponderosa pine were…
Author(s): Stephen F. Arno
Year Published:

A series of nine large-scale, open fires was conducted in the Intermountain Fire Sciences Laboratory (IFSL) controlled-environment combustion facility. The fuels were pure pine needles or sagebrush or mixed fuels simulating forest-floor, ground…
Author(s): Robert J. Yokelson, David W. T. Griffith, Darold E. Ward
Year Published: