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Displaying 1 - 20 of 49

[Excerpted from text] The growth of wildfires is related to three broad factors: fuel type, topography and weather. The National Fire Danger Rating System and the Fire Behavior Prediction System combine these factors to predict the probability and…
Author(s): Paul A. Werth, Richard Ochoa
Year Published:

A successional process model has been adapted for use with species from ponderosa pine/Douglas-fir (Pinus ponderosa var. ponderosa)/(Pseudotsuga menziesii var. glauca) forests of the inland Northwest. Its design allows modification for application…
Author(s): Robert E. Keane, Stephen F. Arno, James K. Brown
Year Published:

Includes 52 papers and 14 poster synopses that present current knowledge about ecosystems where whitebark pine and associated flora and fauna predominate. This was the first symposium to explore the ecology and management of these ecosystems, which…
Year Published:

Habitat distribution and stand dynamics of whitebark pine (Pinus albicaulis) within the whitebark pine zone of the Mount Washburn massif, Yellowstone National Park were investigated as part of a study of relationships among grizzly bears, red…
Author(s): David J. Mattson, Daniel P. Reinhart
Year Published:

Whitebark pine (Pinus albicaulis) is a valuable wildlife resource in the western United States and southwestern Canada. Its large seeds are a preferred food for a variety of birds and mammals, especially Clark's nutcrackers (Nucifraga columbiana),…
Author(s): Katherine Kendall, Stephen F. Arno
Year Published:

To provide adequate resource protection in alpine and subalpine areas, managers need to expand their perspective and focus on ecosystem and landscape-level management. Single-resource and microsite focuses stymie integrated management and protection…
Author(s): Wendel J. Hann
Year Published:

Whitebark pine (Pinus albicaulis) has received little management emphasis except in the past 10 years. Silvicultural treatment of whitebark pine is starting to draw increased interest as attention is focused on the species and its potential…
Author(s): Douglas E. Eggers
Year Published:

Whitebark pine ecosystems are an important element of many of the most spectacular high-elevation landscapes in the western United States. They occupy upper subalpine and timberline zones in the prime recreation lands of the Cascades, the Sierra…
Author(s): David N. Cole
Year Published:

Regardless of the mixture of land management objectives, quantification of the type of stands that will meet these objectives, target stands, is needed. Quantification of target stands is essential as the starting point for the diagnosis of…
Author(s): Jimmie D. Chew
Year Published:

The authors explain the ways in which uncertainty is an important factor in the problems of risk and policy analysis. This book outlines the source and nature of uncertainty, discusses techniques for obtaining and using expert judgment, and reviews…
Author(s): M. Granger Morgan, Max Henrion
Year Published:

An empirical model for predicting deposition of coarse-textured debris flows in confined mountain channels is developed based on field measurements of 14 debris flows in the Pacific Northwest, U.S.A. The model uses two criteria for deposition:…
Author(s): Lee E. Benda, Terrance W. Cundy
Year Published:

We present a narrative account of case studies of the recovery of flowing water systems from disturbance, focusing on the investigators' conclusions about recovery time and the factors contributing to recovery. We restrict our attention to case…
Author(s): J. David Yount, Gerald J. Niemi
Year Published:

Ecosystem disturbances produce changes in macrobenthic community structure (abundances, biomass, and production) that persist for a few weeks to many decades. Examples of disturbances with extremely long-term effects on benthic communities include…
Author(s): J. Bruce Wallace
Year Published:

Habitats or environmental factors that convey spatial and temporal resistance and/or resilience to biotic communities that have been impacted by biophysical disturbances may be called refugia. Most refugia in rivers are characterized by extensive…
Author(s): James R. Sedell, Gordon H. Reeves, F. Richard Hauer, Jack A. Stanford
Year Published:

Disturbance regime is a critical organizing feature of stream communities and ecosystems. The position of a given reach in the river basin and the sediment type within that reach are two key determinants of the frequency and intensity of flow-…
Author(s): Seth R. Reice, Robert C. Wissmar, Robert J. Naiman
Year Published:

A forest fire followed by an intense convectional rainstorm caused a 100-year flood in the Beaver Creek drainage. This study documented changes in resident trout populations and use of the stream by adfluvial spawning fish. Two months after the…
Author(s): Mark A. Novak, Robert G. White
Year Published:

The responses of streams to the 1979 Mortar Creek fire in central Idaho provide valuable insights into the extended impact of wildfire on trout habitat. The fire dramatically increased runoff and fine sediment levels and reduced shading and cover…
Author(s): G. Wayne Minshall, Douglas A. Andrews, James T. Brock, Christopher T. Robinson, Deron E. Lawrence
Year Published:

abstract available at link but unable to capture.
Author(s): Richard A. Marston, David H. Haire
Year Published:

[from the text] Forest history studies (Arno 1980, Dieterich 1983) indicate that before fire suppression was initiated at the start of this century, most forest fires were surface fires. These fires reduced fire hazards and improved stand conditions…
Author(s): Gerald J. Gottfried, Leonard F. DeBano
Year Published:

Fire affects spawning areas and food habitat in streams by indirectly influencing waterflow, nutrients, erosion, sedimentation, debris, and water temperature. The response of vegetation following fire is the most important factor affecting aquatic…
Author(s): James K. Brown
Year Published: