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    Author(s): Thomas A. SpiesPeter A. StineRebecca GravenmierJonathan W. LongMatthew J. ReillyRhonda Mazza
    Date: 2018
    Source: Gen. Tech. Rep. PNW-GTR-970. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 186 p.
    Publication Series: General Technical Report (GTR)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (15.0 MB)

    Description

    This is the executive summary of a three-volume science synthesis that addresses various ecological and social concerns regarding management of federal forests encompassed by the Northwest Forest Plan (NWFP). Land managers with the U.S. Forest Service provided questions that helped guide preparation of the synthesis. It builds on the 10-, 15-, and 20-year NWFP monitoring reports and synthesizes the vast body of relevant scientific literature that has accumulated in the 24 years since the NWFP was initiated. Here we summarize scientific findings and considerations for management that were identified in the full science synthesis.
    We find that the NWFP has protected dense old-growth forests and has maintained habitat for northern spotted owls (Strix occidentalis caurina), marbled murrelets (Brachyramphus marmoratus), aquatic organisms, and other species despite losses from wildfire and low levels of timber harvest on federal lands. Other goals have not been met, including producing a sustainable supply of timber and the broad use of adaptive management. New concerns include the impact of nonnative barred owls (Strix varia) on northern spotted owl populations, effects of fire suppression on forest succession, fire behavior in dry forests, and the effects of climate change and invasive species on native biodiversity.
    A growing body of scientific evidence supports the importance of active management or restoration inside and outside NWFP reserves to promote a full complement of biodiversity and ecological resilience. Active management to promote heterogeneity of vegetation conditions is important to sustaining tribal ecocultural resources. Declines in agency capacity, lack of markets for small-diameter wood, lack of wood processing infrastructure in some areas, and lack of social agreement have limited the amount of active management for restoration on federal lands. All management choices involve social and ecological tradeoffs related to the goals of the NWFP. Collaboration, risk management, adaptive management, and monitoring are considered elemental approaches in dealing with complex social and ecological systems with futures that are difficult to predict and affect through policy and land management actions.

    Publication Notes

    • You may send email to pnw_pnwpubs@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Spies, Thomas A.; Stine, Peter A.; Gravenmier, Rebecca; Long, Jonathan W.; Reilly, Matthew J.; Mazza, Rhonda, tech. coords. 2018. Synthesis of science to inform land management within the Northwest Forest Plan area: executive summary. Gen. Tech. Rep. PNW-GTR-970. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 186 p.

    Keywords

    Northwest Forest Plan, science, management, restoration, northern spotted owl, marbled murrelet, climate change, socioeconomic, environmental justice.

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