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Updating the National Fire-Danger Rating System (NFDRS) was completed in 1977, and operational use of it was begun the next year. The System provides a guide to wildfire control and suppression by its indexes that measure the relative potential of initiating fires. Such fires do not behave…
Author(s): Jack D. Cohen, John E. Deeming
Keywords: fire modeling, fire occurrence, fire-danger indexes, forest-fire hehavior, forest-fire risk, fuel moisture, fuel models
Source: Gen. Tech. Rep. PSW-82. Berkeley, CA: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture; 16 p
Year: 1985
Spruce beetle, Dendroctonus rufipennis (Kirby), is one of the most broadly distributed bark beetles in North America, extending from Alaska to Newfoundland, south to Arizona. It colonizes most species of spruce within its range. Usually it is associated with highly stressed or killed trees, but…
Author(s): Kenneth F. Raffa, Luana S. Maroja, Steven M. Bogdanowicz, Kimberly F. Wallin, Richard G. Harrison
Keywords: phylogeography, spruce beetle, Dendroctonus rufipennis, mtDNA, microsatellites
Source: In: Bentz, Barbara; Cognato, Anthony; Raffa, Kenneth, eds. Proceedings from the Third Workshop on Genetics of Bark Beetles and Associated Microorganisms. Proc. RMRS-P-45. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 27-28
Year: 2007
Although studies of pheromone production in the southern pine beetle (Dendroctonus frontalis) extend back to the dawn of chemical ecology, it is only recently that instrumentation has become sufficiently sensitive to measure pheromone production of individual beetles. Now, recent studies have…
Author(s): Deepa S. Pureswaran, Brian T. Sullivan, Matthew P. Ayres
Keywords: pheromone production, southern pine beetle, Dendroctonus frontalis
Source: In: Bentz, Barbara; Cognato, Anthony; Raffa, Kenneth, eds. Proceedings from the Third Workshop on Genetics of Bark Beetles and Associated Microorganisms. Proc. RMRS-P-45. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 33
Year: 2007
The Forest Inventory and Analysis (FIA) program measures a number of chemical and physical properties of soils to address specific questions about forest soil quality or health. We developed a new index of forest soil health, the soil quality index (SQI), that integrates 19 measured physical and…
Author(s): Michael C. Amacher, Katherine P. O'Neil, Charles H. Perry
Keywords: forest soil health, Forest Inventory and Analysis, soil indicator database, soil quality index
Source: Res. Pap. RMRS-RP-65. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 12 p.
Year: 2007
Major wildland/urban interface fire losses, principally residences, continue to occur. Although the problem is not new, the specific mechanisms are not well known on how structures ignite in association with wildland fires. In response to the need for a better understanding of wildland/urban…
Author(s): Jack D. Cohen
Source: In: Weise, David R.; Martin, Robert E., technical coordinators. The Biswell symposium: fire issues and solutions in urban interface and wildland ecosystems; February 15-17, 1994; Walnut Creek, California. Gen. Tech. Rep. PSW-GTR-158. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 85-92
Year: 1995
Management of riparian habitats is controversial because land use policies have historically emphasized economic values (e.g., timber production) at the expense of ecological and social values. Attempting to manage these valuable resources to attain the greatest combination of benefits has created…
Author(s): Fred H. Everest, Gordon H. Reeves
Keywords: Riparian ecosystems, management, dynamics, Northwest Forest Plan, Tongass Land Management Plan
Source: Gen. Tech. Rep. PNW-GTR-692. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 130 p
Year: 2007
We review 12 large-scale silviculture experiments (LSSEs) in western Washington and Oregon with which the Pacific Northwest Research Station of the USDA Forest Service is substantially involved. We compiled and arrayed information about the LSSEs as a series of matrices in a relational database,…
Author(s): Nathan J. Poage, Paul D. Anderson
Source: Gen. Tech. Rep. PNW-GTR-713. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 44 p
Year: 2007
Reliable predictions of how changing climate and disturbance regimes will affect forest ecosystems are crucial for effective forest management. Current fire and climate research in forest ecosystem and community ecology offers data and methods that can inform such predictions. However, research in…
Author(s): Samuel A. Cushman, Donald McKenzie, David L. Peterson, Jeremy Littell, Kevin S. McKelvey
Keywords: climate change, climate regime, disturbance regime, modeling paradigms, empirical gradient model, mechanistic ecosystem model, stochastic landscape disturbance model
Source: Gen. Tech. Rep. RMRS-GTR-194. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 50 p.
Year: 2007
Management of giant sequoia (Sequoiadendron giganteum,/i> [Lindl.] Buchholz) in Sequoia, Kings Canyon, and Yosemite National Parks focuses on the need for maintaining and, where necessary, restoring natural ecosystem processes. Such a program includes restoration of natural fire regimes,…
Author(s): David J. Parsons, H. Thomas Nichols
Source: In: Weatherspoon, C. Phillip; Iwamoto, Y. Robert; Piirto, Douglas D., technical coordinators. Proceedings of the workshop on management of giant sequoia; May 24-25, 1985; Reedley, California. Gen. Tech. Rep. PSW-GTR-95. Berkeley, CA: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture: p. 26-29
Year: 1986
In September 1995, the Society for Ecological Restoration (SER) held its Annual Meeting at the University of Washington in Seattle. The meeting included two dozen conferences and several symposia and field trips dealing with various aspects of applying ecological restoration on both site-specific…
Author(s): Stephen F. Arno
Keywords: fire ecology, fire regimes, forest restoration, ecosystem management, Society for Ecological Restoration, SER
Source: In: Hardy, Colin C.; Arno, Stephen F., eds. The use of fire in forest restoration. Gen. Tech. Rep. INT-GTR-341. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. p. 3-5.
Year: 1996
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