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  • Integrating scientific methods with habitat conservation planning: reserve design for northern spotted owls

    Informally Refereed
    Authors
    D.D. Murphy, B.R. Noon
    Source
    Ecological Applications 2(1):3-17
    Year
    1992

  • Monitoring visitor use in backcountry and wilderness: a review of methods

    Informally Refereed
    Obtaining accurate and usable visitor counts in backcountry and wilderness settings continues to be problematic for resource managers because use of these areas is dispersed and costs can be prohibitively high. An overview of the available methods for obtaining reliable data on recreation use levels is provided. Monitoring methods were compared and selection criteria were developed based on units of measure, efficiency and affordability, validity and reliability, and compatibility with agency objectives. Using these selection criteria, some general recommendations of methods for monitoring...
    Authors
    Steven J. Hollenhorst, Steven A. Whisman, Alan W. Ewert
    Keywords
    visitor counts, visitor statistics, visitor use monitoring methods, wildland recreation, backcountry, wilderness
    Source
    Gen. Tech. Rep. PSW-134. Berkeley, Calif.: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. 10 p
    Year
    1992

  • Biosystematics of Ips mexicanus and Ips plastographus (Coleoptera: Scolytidae) and Their Fungal Symbionts

    Informally Refereed
    Authors
    David L. Wood, Andrew J. Storer, Thomas R. Gordon, Steve J. Seybold, Marion Page
    Source
    In: Hayes, Jane L.; Robertson, Jacqueline L., tech. coords. 1992. Proceedings of a workshop on bark beetle genetics: current status of research. May 17-18, 1992, Berkeley, California. Gen. Tech. Rep. PSW-GTR-138. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 10-11
    Year
    1992

  • Population Genetics of Spruce Bark Beetle Ips typographus (Col., Scolytidae) and Related Ips Species

    Informally Refereed
    Authors
    Christian Stauffer, Renate Leitinger, Erwin Fuehrer
    Source
    In: Hayes, Jane L.; Robertson, Jacqueline L., tech. coords. 1992. Proceedings of a workshop on bark beetle genetics: current status of research. May 17-18, 1992, Berkeley, California. Gen. Tech. Rep. PSW-GTR-138. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 22
    Year
    1992

  • Workshop Participants

    Informally Refereed
    Source
    In: Hayes, Jane L.; Robertson, Jacqueline L., tech. coords. 1992. Proceedings of a workshop on bark beetle genetics: current status of research. May 17-18, 1992, Berkeley, California. Gen. Tech. Rep. PSW-GTR-138. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 31
    Year
    1992

  • References

    Informally Refereed
    Source
    In: Hayes, Jane L.; Robertson, Jacqueline L., tech. coords. 1992. Proceedings of a workshop on bark beetle genetics: current status of research. May 17-18, 1992, Berkeley, California. Gen. Tech. Rep. PSW-GTR-138. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 26-30
    Year
    1992

  • Systematics Research

    Informally Refereed
    Authors
    Donald E. Bright
    Source
    In: Hayes, Jane L.; Robertson, Jacqueline L., tech. coords. 1992. Proceedings of a workshop on bark beetle genetics: current status of research. May 17-18, 1992, Berkeley, California. Gen. Tech. Rep. PSW-GTR-138. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 25
    Year
    1992

  • Novel Bark Beetle Research Possible with New Genetic Techniques

    Informally Refereed
    Authors
    Ken Hobson, Owain Edwards
    Source
    In: Hayes, Jane L.; Robertson, Jacqueline L., tech. coords. 1992. Proceedings of a workshop on bark beetle genetics: current status of research. May 17-18, 1992, Berkeley, California. Gen. Tech. Rep. PSW-GTR-138. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 23
    Year
    1992

  • Genetic Basis of Semiochemically Mediated Bark Beetle-Predator Coevolution: Implications for Developing Mass-Trapping Technologies

    Informally Refereed
    Authors
    Robert A. Haack, Daniel A. Herms, Bruce D. Ayres, Matthew P. Ayres, M.L. Doozie Snider
    Source
    In: Hayes, Jane L.; Robertson, Jacqueline L., tech. coords. 1992. Proceedings of a workshop on bark beetle genetics: current status of research. May 17-18, 1992, Berkeley, California. Gen. Tech. Rep. PSW-GTR-138. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 20-21
    Year
    1992

  • Current Status and Critical Research Needs in Scolytid Genetics

    Informally Refereed
    Authors
    Kenneth F. Raffa
    Source
    In: Hayes, Jane L.; Robertson, Jacqueline L., tech. coords. 1992. Proceedings of a workshop on bark beetle genetics: current status of research. May 17-18, 1992, Berkeley, California. Gen. Tech. Rep. PSW-GTR-138. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p.18-19
    Year
    1992
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