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Ecosystem

Displaying 5121 - 5140 of 6051 results

This state-of-knowledge review about the effects of fire on flora and fuels can assist land managers with ecosystem and fire management planning and in their efforts to inform others about the ecological role of fire. Chapter topics include fire…
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Nitrogen fixing plants have been reported to play an important role in replacing N lost from soil in fire dominated ecosystems. Exclusion of fire from ponderosa pine (Pinus ponderosa Dougl. ex Laws.)-Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco…
Author(s): J. A. Newland, Thomas H. DeLuca
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Fires affect animals mainly through effects on their habitat. Fires often cause short-term increases in wildlife foods that contribute to increases in populations of some animals. These increases are moderated by the animals' ability to thrive in…
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Geomorphological processes that commonly transport soil down hillslopes and sediment and woody debris through stream systems in steep, mountainous, forest landscapes can operate in sequence down gravitational flowpaths, forming a cascade of…
Author(s): Futoshi Nakamura, Frederick J. Swanson, Steven M. Wondzell
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Creating a learning organization is a much needed, yet difficult to implement asset for any organization. While most managers agree on the importance of building this skill, few understand how to get started, what tools and techniques are needed, or…
Author(s): David Garvin
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This study documented the long-term (>10 years) impact of fire on sage grouse (Centrocercus urophasianus Bonaparte) nesting and brood-rearing habitats on the Upper Snake River Plain in southeastern Idaho.
Author(s): Pamela J. Nelle, Kerry P. Reese, John W. Connelly
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Smoke exposure measurements among firefighters at wildfires in the Western United States between 1992 and 1995 showed that altogether most exposures were not significant, between 3 and 5 percent of the shift-average exposures exceeded occupational…
Author(s): Timothy E. Reinhardt, Roger D. Ottmar
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Invasive, nonnative plant species have been a concern of land managers within the temperate and boreal coniferous forest eco-region for nearly a century. Fire management, timber harvest, grazing, mining, recreation, and agriculture have not only…
Author(s): Richy J. Harrod, Sarah Reichard
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This Supplement presents data syntheses and new evidence from temperate (primarily boreal) North American studies of aquatic ecosystem response to episodic watershed deforestation and acid rain. These studies confirm the dominant role of the…
Author(s): Richard Carignan, Robert J. Steedman
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The scientific literature on logging after wildfire is reviewed, with a focus on environ-mental effects of logging and removal of large woody structure. Rehabilitation, the practice of planting or seeding after logging, is not reviewed here. Several…
Author(s): James D. McIver, Lynn Starr
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The implementation of properly designed treatments to restore and sustain desired forest conditions in the Inland Northwest, besides moving forest stands more rapidly to an ecologically desirable and sustainable condition, can generate positive…
Author(s): Charles E. Keegan, Carl E. Fiedler
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This FEIS species review synthesizes information on the relationship of Achnatherum nelsonii (Columbia needlegrass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Author(s): Kristin L. Zouhar
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Advocates of Traditional Ecological Knowledge (TEK) have promoted its use in scientific research, impact assessment, and ecological understanding. While several examples illustrate the utility of applying TEK in these contexts, wider application of…
Author(s): H.P. Huntington
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Fire, competition for light and water, and native forest pests have interacted for millennia in western forests to produce a countryside dominated by seral species of conifers. These conifer-dominated ecosystems exist in six kinds of biotic…
Author(s): Geral I. McDonald, Alan E. Harvey, Jonalea R. Tonn
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Thirty years ago the effects of timber harvest, prescribed burning, and wildfire were investigated in a western larch/Douglas-fir forest on the Flathead National Forest in western Montana. The original study was designed to investigate the effects…
Author(s): Jonalea R. Tonn, Martin F. Jurgensen, G. D. Mroz, Deborah S. Page-Dumroese
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This FEIS species review synthesizes information on the relationship of Symphoricarpos albus (common snowberry) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Author(s): Jack McWilliams
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FireWorks is an educational program for students in grades 1-10. The program consists of the curriculum in this report and a trunk of laboratory materials, specimens, and reference materials. It provides interactive, hands-on activities for studying…
Author(s): Jane Kapler Smith, Nancy E. McMurray
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Watershed managers and scientists throughout the world have been aware of fire-induced water-repellent soils for over three decades. Water repellency affects many hydrologic processes, including infiltration, overland flow, and surface erosion (rill…
Author(s): Leonard F. DeBano
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Laboratory studies were conducted to determine the acute toxicity of three ammonia-based fire retardants (Fire-Trol LCA-F, Fire-Trol LCM-R, and Phos-Chek 259F), five surfactant-based fire-suppressant foams (FireFoam 103B, FireFoam 104, Fire Quench,…
Author(s): Kevin J. Buhl, Steven J. Hamilton
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This FEIS species review synthesizes information on the relationship of Elymus canadensis (Canada wildrye) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Author(s): Kevin A. Simonin
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