Title: Riparian buffers and thinning in headwater drainages in western Oregon: aquatic vertebrates and habitats
Author: Olson, Deanna H.
Source: In: Anderson, P.D.; Ronnenberg, K.L., eds. Density management in the 21st century: west side story. Gen. Tech. Rep. PNW-GTR-880. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 148–162.
Description: Th e Density Management and Riparian Buff er Study (DMS) of western Oregon is a template for numerous research projects on managed federal forestlands. Herein, I review the origins of Riparian Buffer Study component and summarize key findings of a suite of associated aquatic vertebrate projects. Aquatic vertebrate study objectives include characterization of headwater fauna and habitats, and examination of the eff ects on headwater-dwelling species of combined buffer-and thinning treatments in years 1, 2, 5, and 10 post-treatment. Some treatment eff ects have emerged, with negative eff ects on bank amphibian counts occurring in treatments with the narrowest buffers 10 years post-thinning. Nevertheless, all taxa appear to be persisting at sites. Instream amphibians, in particular, appear to be highly resilient to the types of disturbances resulting from the thinning and buff er treatments of the DMS.
Keywords: riparian reserves, density management, small streams, NWFP, Aquatic Conservation Strategy Objectives.
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Olson, Deanna H. 2013. Riparian buffers and thinning in headwater drainages in western Oregon: aquatic vertebrates and habitats. In: Anderson, P.D.; Ronnenberg, K.L., eds. Density management in the 21st century: west side story. Gen. Tech. Rep. PNW-GTR-880. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 148–162.
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