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Managing for Biodiversity in Young Douglas-Fir Forests of Western Oregon

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Managing for Biodiversity in Young Douglas-Fir Forests of Western Oregon Managing for Biodiversity in Young Douglas-Fir Forests of Western Oregon Biological Science Report USGS/BRD/BSR 2002-0006 Technical Report Series The Biological Resources Division publishes scientific and technical articles and reports resulting from the research performed by our scientists and partners. These articles appear in professional journals around the world. Reports are published in two report series: Biological Science Reports and Information and Technology Reports. Series Descriptions Biological Science Reports ISSN 1081-292X Information and Technology Reports ISSN 1081-2911 This series records the significant findings resulting from These reports are intended for publication of book-length sponsored and co-sponsored research programs. They may monographs; synthesis documents; compilations of include extensive data or theoretical analyses. Papers in this conference and workshop papers; important planning and series are held to the same peer-review and high-quality reference materials such as strategic plans, standard standards as their journal counterparts. operating procedures, protocols, handbooks, and manuals; and data compilations such as tables and bibliographies. Papers in this series are held to the same peer-review and high-quality standards as their journal counterparts. Photo credits Front and back cover forest background: Ed Jensen Banner photos on front cover, left to right caterpillar (Aseptis binotata): Jeff Miller; John Tappeiner, Pat Muir, and Joe Lint discuss forest management: Mark Reed; lichen (Pseudocyphellaria rainierensis): Jim Riley; thinned forest stand: Jim Riley; Wilson’s warbler (Wilsonia pusilla): Joan Hagar Banner photos on back cover, left to right Pacific dogwood (Cornus nuttallii): Ruth Jacobs; Swainson’s thrush (Catharus ustulatus): Cornell Laboratory of Ornithology, Bill Dyer; bracken fern (Pteridium aquilinum): Joan Hagar Copies of this publication are available from the National Technical Information Service, 5285 Port Royal Road, Springfield, Virginia 22161 (800-553-6847 or 703-487-4650). Copies are also available to registered users from the Defense Technical Information Center, Attn.: Help Desk, 8725 John J Kingman Road, Suite 0944, Fort Belvoir, Virginia 22060-6218 (800-225-3842 or 703-767-9050). A limited number of printed copies are available from the senior author. An electronic version of the text is available on the Internet at http://fresc.usgs.gov/. Follow the links on the web site to products. Printed on recycled paper Managing for Biodiversity in Young Douglas-Fir Forests of Western Oregon Biological Science Report USGS/BRD/BSR–2002-0006 October 2002 Patricia S. Muir Rosanna L. Mattingly John C. Tappeiner II John D. Bailey Wayne E. Elliott Joan C. Hagar Jeffrey C. Miller Eric B. Peterson Edward E. Starkey U.S. Geological Survey Forest and Rangeland Ecosystem Science Center Corvallis, Oregon Suggested citation: Muir, P.S., R.L. Mattingly, J.C. Tappeiner II, J.D. Bailey, W.E. Elliott, J.C. Hagar, J.C. Miller, E.B. Peterson, and E.E. Starkey. 2002. Managing for biodiversity in young Douglas-fir forests of western Oregon. U.S. Geological Survey, Biological Resources Division, Biological Science Report USGS/BRD/BSR–2002-0006. 76 pp. Contents Page Abstract .................................................................................................................................................... 1 Project Introduction ................................................................................................................................. 3 Overview .............................................................................................................................................. 3 The Forest ......................................................................................................................................... 3 The Northwest Forest Plan ............................................................................................................... 3 The Project ........................................................................................................................................ 4 Forest Stand Development ................................................................................................................... 6 Douglas-Fir Forests in Western Oregon .............................................................................................. 9 History of Forest Management ......................................................................................................... 9 Current Age-Class Distribution of Young-Growth Stands .............................................................. 10 Changing Forest-Management Objectives ....................................................................................... 10 Project Objectives .................................................................................................................................... 11 Materials and Methods ............................................................................................................................ 12 Project Study Area ............................................................................................................................... 12 Description of Study Area ................................................................................................................ 12 Young-Growth Stands ...................................................................................................................... 12 Old-Growth Stands ........................................................................................................................... 14 Project Study Stands ......................................................................................................................... 14 Study Organisms .................................................................................................................................. 16 Trees, Shrubs, and Herbaceous Vegetation ..................................................................................... 16 Epiphytic Lichens and Bryophytes .................................................................................................. 17 Moths ................................................................................................................................................ 18 Birds .................................................................................................................................................. 19 Study Methods ..................................................................................................................................... 20 Trees, Shrubs, and Herbaceous Vegetation ..................................................................................... 20 Epiphytic Lichens and Bryophytes .................................................................................................. 20 Macrolichens on Trees and Shrubs .............................................................................................. 20 Macrolichens and Bryophytes on Shrubs ..................................................................................... 20 Moths ................................................................................................................................................ 20 Birds .................................................................................................................................................. 21 Study Objectives, Results, and Recommendations for Management ..................................................... 22 Trees, Shrubs, and Herbaceous Vegetation ......................................................................................... 22 Study Objectives ............................................................................................................................... 22 Major Findings ................................................................................................................................. 22 Additional Research ......................................................................................................................... 23 Conclusions ....................................................................................................................................... 24 Recommendations for Management ................................................................................................. 24 Epiphytic Lichens and Bryophytes ...................................................................................................... 26 Macrolichens on Trees and Shrubs .................................................................................................... 26 Study Objectives ............................................................................................................................... 26 Major Findings ................................................................................................................................. 26 Conclusions ....................................................................................................................................... 27 Recommendations for Management ................................................................................................. 28 Macrolichens and Bryophytes on Shrubs ........................................................................................... 29 Study Objectives ..............................................................................................................................
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