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11,206 results found
The marbled murrelet (Brachyramphus marmoratus) ranges from Alaska to California and is listed under the Endangered Species Act as a threatened species in Washington, Oregon, and California. Marbled murrelet recovery depends, in large part, on conservation and restoration of breeding…
Author(s): Martin G. Raphael, Jim Baldwin, Gary A. Falxa, Mark H. Huff, Monique Lance, Sherri L. Miller, Scott F. Pearson, C. John Ralph, Craig Strong, Chris Thompson
Keywords: Brachyramphus marmoratus, distance sampling, line transect, marbled murrelet, Northwest Forest Plan, population monitoring
Source: Gen. Tech. Rep. PNW-GTR-716. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 70 p
Year: 2007
A fire growth model (FARSITE) has been developed for use on personal computers (PC’s). Because PC’s are commonly used by land and fire managers, this portable platform would be an accustomed means to bring fire growth modeling technology to management applications. The FARSITE model is intended for…
Author(s): Mark A. Finney
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. 55-56
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
This study gives an overview of the current inventory status and the projection of future forest inventories on other public timberland. Other public lands are lands administered by state, local, and federal government but excluding National Forest System lands. These projections were used as part…
Author(s): Xiaoping Zhou, John R. Mills, Richard W. Haynes
Keywords: Other public timberlands, timber supply, modeling, inventory projection, yield function, forest structure, public policy, seral stage
Source: Gen. Tech. Rep. PNW-GTR-717. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 31 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
Mountain meadows in the Pacific Northwest are patches of remarkable biological diversity. Lush, forb-, grass-, and shrub-dominated communities attract rich assemblages of arthropods, support diverse communities of birds, and provide habitat for small mammals and other wildlife. Recent encroachment…
Author(s): Jonathan Thompson
Source: Science Findings 94. Portland, OR. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 5 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
Description, classification and delineation of visual landscape character are initial steps in developing visual resource management plans. Landscape characteristics identified as key factors in visual landscape analysis include land cover/land use and landform. Landscape types, which are…
Author(s): Paul F. Anderson
Source: In: Elsner, Gary H., and Richard C. Smardon, technical coordinators. 1979. Proceedings of our national landscape: a conference on applied techniques for analysis and management of the visual resource [Incline Village, Nev., April 23-25, 1979]. Gen. Tech. Rep. PSW-GTR-35. Berkeley, CA. Pacific Southwest Forest and Range Exp. Stn., Forest Service, U.S. Department of Agriculture: p. 157-163
Year: 1979
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
https://www.fs.usda.gov/treesearch/search/query?keywords=%22propagule%20pressure%22&f%5B0%5D=national_research_taxonomy%3A96