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Ecosystem

Displaying 4621 - 4640 of 6067 results

Research to date on effects of fire exclusion in ponderosa pine (Pinus ponderosa) forests has been limited by narrow geographical focus, by confounding effects due to prior logging at research sites, and by uncertainty from using reconstructions of…
Author(s): Eric G. Keeling, Anna Sala, Thomas H. DeLuca
Year Published:

This FEIS species review synthesizes information on the relationship of Perisoreus canadensis (Canada jay) to fire--how fire affects the species and its habitat, effects of the species on fuels and fire regimes, and fire management considerations.…
Author(s): Elena D. Ulev
Year Published:

This FEIS species review synthesizes information on the relationship of Distichlis spicata (saltgrass) to fire--how fire affects the species and its habitat, effects of the species on fuels and fire regimes, and fire management considerations.…
Author(s): Alan S. Hauser
Year Published:

Snags create nesting, foraging, and roosting habitat for a variety of wildlife species. Removal of snags through postfire salvage logging reduces the densities and size classes of snags remaining after wildfire. We determined important variables…
Author(s): Robin E. Russell, Victoria A. Saab, Jonathan G. Dudley, Jay J. Rotella
Year Published:

The Fuel Treatment Evaluator (FTE) 3.0 is a web-based tool that simulates uneven-aged and even-aged silvicultural treatments on timberland in 12 western states. This tool simulates treatments to reduce forest fire hazard to specific target levels…
Author(s): U.S. Department of Agriculture, Forest Service
Year Published:

This FEIS species review synthesizes information on the relationship of Vulpia myuros (rattail sixweeks grass) to fire--how fire affects the species and its habitat, invasiveness of the species, effects of the species on fuels and fire regimes, and…
Author(s): Janet L. Howard
Year Published:

This paper reviews general literature, research studies, field observations, and standard Forest Service survival surveys of high-elevation whitebark pine plantations and presents a set of guidelines for outplanting prescriptions. When planting…
Author(s): Joe H. Scott, Ward W. McCaughey
Year Published:

This paper presents an assessment of fire weather and fire behavior predictions produced by a numerical weather prediction model similar to those used by operational weather forecasters when preparing their forecasts. The PSU/NCAR MM5 model is used…
Author(s): Joseph J. Charney, Lesley A. Fusina
Year Published:

Computerized and manual systems for modeling wildland fire behavior have long been available (Rothermel 1983, Andrews 1986). These systems focus on one-dimensional behaviors and assume the fire geometry is a spreading line-fire (in contrast with…
Author(s): Mark A. Finney
Year Published:

A model for fire-induced heating in tree stems is linked to a recently reported model for tissue necrosis. The combined model produces cambial tissue necrosis predictions in a tree stem as a function of heating rate, heating time, tree species, and…
Author(s): Joshua L. Jones, Brent W. Webb, Bret W. Butler, Matthew B. Dickinson, Daniel M. Jimenez, James J. Reardon, Anthony S. Bova
Year Published:

Federal wildland fire management programs have readily embraced the practice of fuel treatment. Wildland fire risk is quantified as expected annual loss ($ yr-1 or $ yr-1 ac-1). Fire risk at a point on the landscape is a function of the probability…
Author(s): Joe H. Scott
Year Published:

Masticated fuel treatments that chop small trees, shrubs, and dead woody material into smaller pieces to reduce fuel bed depth are used increasingly as a mechanical means to treat fuels. Fuel loading information is important to monitor changes in…
Author(s): Sharon M. Hood, Ros Wu
Year Published:

Little previous work has been conducted on effects of natural, high-severity wildfires on nitrogen (N) dynamics. We measured aboveground plant biomass, foliar N, and net N mineralization 2 years after stand-replacing fires in lodgepole pine (Pinus…
Author(s): Kristine L. Metzger, William H. Romme, Monica G. Turner
Year Published:

This FEIS species review synthesizes information on the relationship of Rosa woodsii (Wood's rose) to fire--how fire affects the species and its habitat, effects of the species on fuels and fire regimes, and fire management considerations.…
Author(s): Alan S. Hauser
Year Published:

Forty-six years of daily averaged NCEP–NCAR reanalysis data are used to identify the occurrence of planetary wave breaking (PWB) in the subtropical upper troposphere. As large-amplitude waves propagate into the subtropics where the zonal flow is…
Author(s): John T. Abatzoglou, Gudrun Magnusdottir
Year Published:

ANNOTATION: This paper presents a model of interrelated timber markets in the U.S. West to assess the impacts of large-scale fuel reduction programs on these markets, and concomitant effects of the market on the fuel reduction programs. The model…
Author(s): Karen L. Abt, Jeffrey P. Prestemon
Year Published:

To better understand the role of herbivory and fire as potential disturbance processes in sagebrush communities, we examined responses of a grazing ungulate, elk (Cervus elaphus), following prescribed burning of sagebrush (Artemisia tridentata ssp.…
Author(s): Fred Van Dyke, Jeffrey A. Darragh
Year Published:

This FEIS species review synthesizes information on the relationship of Opuntia humifusa (eastern pricklypear) to fire--how fire affects the species and its habitat, effects of the species on fuels and fire regimes, and fire management…
Author(s): Jane E. Taylor
Year Published:

Federal land managers and the public engage in many decisions about stewardship of wilderness in the United States, including decisions about stewardship of fire. To date, social science research lacks a holistic examination of the decision-making…
Author(s): Katie Knotek
Year Published:

This FEIS species review synthesizes information on the relationship of Cercocarpus montanus (true mountain-mahogany) to fire--how fire affects the species and its habitat, effects of the species on fuels and fire regimes, and fire management…
Author(s): Corey L. Gucker
Year Published: