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27 results found
We measured differences in nearshore littoral zone habitat among lakes with different amounts of residential development and different patterns of watershed land use. Sampling stations were located at randomly selected sites within the nearshore littoral zone of limnologically similar lakes. An…
Author(s): Martin J. Jennings, Edward E. Emmons, Gene R. Hatzenbeler, Clayton Edwards, Michael A. Bozek
Keywords: aquatic habitat, lakes, land use, development, spatial scale, macrophyres, substrate, woody debris
Source: Lakes and Reservoir Management 19(3):272-279
Year: 2003
The condition of aquatic habitat and the health of species dependent on that habitat are issues of significant concern to land management agencies, other organizations, and the public at large in southeastern Alaska, as well as along much of the Pacific coastal region of North America. We develop…
Author(s): Richard D. Woodsmith, James R. Noel, Michael L. Dilger
Keywords: Channel condition, aquatic habitat, effectiveness monitoring
Source: Landscape and Urban Planning. 72: 177-204
Year: 2005
Multivariate statistical analyses of geomorphic variables from 23 forest stream reaches in southeast Alaska result in successful discrimination between pristine streams and those disturbed by land management, specifically timber harvesting and associated road building. Results of discriminant…
Author(s): Richard. D. Wood-Smith, John M. Buffington
Keywords: fluvial geomorphology, multivariate analysis, forest streams, aquatic habitat, channel units
Source: Earth Surface Processes and Landforms. 21: 277-393.
Year: 1996
This document reviews existing and proposed protocols used to monitor stream ecosystem conditions and responses to land management activities in the Pacific Northwest. Because of recent work aimed at improving the utility of habitat survey and fish abundance assessment methods, this review focuses…
Author(s): Scott A. Stolnack, Mason D. Bryant, Robert C. Wissmar
Keywords: Monitoring, aquatic habitat, riparian ecosystems, adaptive management, forest practices
Source: Gen. Tech. Rep. PNW-GTR-625. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 36 p
Year: 2005
Control of sediment from logging roads in California’s redwood region is important to protecting streams inhabited by endangered salmonids. Both private and public landowners have limited resources to devote to road erosion control, and must make difficult choices about which roads to treat and…
Author(s): David Tomberlin, William T. Baxter, Robert R. Ziemer, Matthew Thompson
Keywords: PSW4351, Caspar Creek, watershed, logging roads, aquatic habitat, sediment, salmonid
Source: Poster, 2002 SAF National Convention, 5-9 October 2002, Winston-Salem, NC.
Year: 2002
The title of this conference, ""Views From the Ridge"" suggests a particular scalar view of issues. From the ridge, one obtains a somewhat broad but restricted view of the landscape. Certainly, ""Views From Space"" would provide a larger spatial overview in which landscape pattern becomes a…
Author(s): Robert R. Ziemer
Keywords: PSW4351, hillslopes, erosion, watershed, aquatic habitat
Source: Pages 22-32, in: Hermann Gucinski, Cynthia Miner, and Becky Bittner (eds.) Proceedings: Views from the ridge: Considerations for planning at the landscape scale. General Technical Report PNW-GTR-596. Portland, OR: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station. 133 p.
Year: 2004
Aquatic species throughout the interior Columbia River basin are at risk. Evaluation of the potential effects of federal land management on aquatic ecosystems across this region is an important but challenging task. Issues include the size and complexity of the systems, uncertainty in important…
Author(s): Bruce Rieman, James T. Peterson, James Clayton, Philip Howell, Russell Thurow, William Thompson, Danny Lee
Keywords: Bayesian belief network, fish, salmon, trout, Columbia River basin, aquatic habitat
Source: Forest Ecology and Management. 153(1): 43-62.
Year: 2001
The Nature Conservancy and Bureau of Land Management are testing a model that prescribed burns can be used to increase perennial grass cover, reduce shrubs in desert grassland, and improve watershed condition and aquatic habitat. Results of a prescribed burn in the Hot Springs Creek watershed on…
Author(s): David F. Gori, Dana Backer
Keywords: watersheds, aquatic habitat, fish, native species, grasses, prescribed fire, restoration
Source: In: Gottfried, Gerald J.; Gebow, Brooke S.; Eskew, Lane G.; Edminster, Carleton B., comps. Connecting mountain islands and desert seas: biodiversity and management of the Madrean Archipelago II. Proc. RMRS-P-36. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 403-406
Year: 2005
Debris flows are important geomorphic agents in mountainous terrains that shape channel environments and add a dynamic element to sediment supply and channel disturbance. Identification of channels susceptible to debris-flow inputs of sediment and organic debris, and quantification of the…
Author(s): Daniel J. Miller, Kelly M. Burnett
Keywords: Debris flow, landslide, disturbance, aquatic habitat, risk assessment
Source: Geomorphology. 94: 184-205
Year: 2008
An important first step in managing forest roads for improved water quality and aquatic habitat is the performance of an inventory. The Geomorphic Roads Analysis and Inventory Package (GRAIP) was developed as a tool for making a comprehensive inventory and analysis of the effects of forest roads on…
Author(s): Thomas A. Black, Richard M. Cissel, Charles H. Luce
Keywords: Geomorphic Roads Analysis and Inventory Package (GRAIP), water quality, aquatic habitat, road inventory
Source: Gen. Tech. Rep. RMRS-GTR- 280WWW. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 110 p.
Year: 2012