National Park Service U.S. Department of the Interior Natural Resource Stewardship and Science Invasive Plant Species Early Detection in the San Francisco Bay Area Network 2014 Annual Report Natural Resource Data Series NPS/SFAN/NRDS—2017/1080 ON THE COVER Early Detection Technician Nicholas Stevenson maps an infestation of purple wallaby grass (Rytidosperma penicillatum) at Point Reyes National Seashore. Photograph by: by Eric Wrubel, NPS Invasive Plant Species Early Detection in the San Francisco Bay Area Network 2014 Annual Report Natural Resource Data Series NPS/SFAN/NRDS—2017/1080 Eric Wrubel National Park Service San Francisco Bay Area Network Inventory & Monitoring Program Fort Cronkhite Building 1063 San Francisco, California 94965 January 2017 U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Fort Collins, Colorado The National Park Service, Natural Resource Stewardship and Science office in Fort Collins, Colorado, publishes a range of reports that address natural resource topics. These reports are of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Data Series is intended for the timely release of basic data sets and data summaries. Care has been taken to assure accuracy of raw data values, but a thorough analysis and interpretation of the data has not been completed. Consequently, the initial analyses of data in this report are provisional and subject to change. All manuscripts in the series receive the appropriate level of peer review to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and designed and published in a professional manner. Data in this report were collected and analyzed using methods based on established, peer-reviewed protocols and were analyzed and interpreted within the guidelines of the protocols. Views, statements, findings, conclusions, recommendations, and data in this report do not necessarily reflect views and policies of the National Park Service, U.S. Department of the Interior. Mention of trade names or commercial products does not constitute endorsement or recommendation for use by the U.S. Government. This report is available in digital format from the San Francisco Bay Area Inventory and Monitoring Network website (http://science.nature.nps.gov/im/units/sfan/index.cfm) and the Natural Resource Publications Management website (http://www.nature.nps.gov/publications/nrpm/). To receive this report in a format optimized for screen readers, please email [email protected]. Please cite this publication as: Wrubel, E. C. 2017. Invasive plant species early detection in the San Francisco Bay Area Network: 2014 annual report. Natural Resource Data Series NPS/SFAN/NRDS—2017/1080. National Park Service, Fort Collins, Colorado. NPS 641/136095, 426/136095, 114/136095, 612/136095, January 2017 ii Contents Page Tables ..................................................................................................................................................... v Appendices ............................................................................................................................................. v Executive Summary .............................................................................................................................. vi Acknowledgments ................................................................................................................................ vii Introduction ............................................................................................................................................ 1 Background..................................................................................................................................... 1 Objectives ....................................................................................................................................... 1 Methods .................................................................................................................................................. 2 Prioritization ................................................................................................................................... 2 Field Methods ................................................................................................................................. 3 Species List Revisions .................................................................................................................... 4 Results .................................................................................................................................................... 6 GOGA ............................................................................................................................................ 6 Search Effort .............................................................................................................................. 6 Species Found ............................................................................................................................ 6 PORE .............................................................................................................................................. 8 Search Effort .............................................................................................................................. 8 Species Found ............................................................................................................................ 9 PINN ............................................................................................................................................. 11 Search Effort ............................................................................................................................ 11 Species Found .......................................................................................................................... 11 JOMU ........................................................................................................................................... 12 Search Effort ............................................................................................................................ 12 Species Found .......................................................................................................................... 12 Discussion ............................................................................................................................................ 14 Species Occurrences ..................................................................................................................... 14 New Taxa...................................................................................................................................... 14 Database Development ................................................................................................................. 14 iii Contents (continued) Page Outreach ....................................................................................................................................... 14 Collaboration ................................................................................................................................ 15 Literature Cited .................................................................................................................................... 17 Glossary ............................................................................................................................................... 19 iv Tables Page Table 1. Tiered levels of data collection. .............................................................................................. 3 Table 2. Revisions to the GOGA priority species list for 2014. ........................................................... 4 Table 3. Revisions to the PORE priority species list for 2014. ............................................................. 5 Table 4. GOGA 2014 survey results. New occurrences and number of subwatersheds with target species present. .................................................................................................................... 6 Table 5. PORE 2014 survey results. New occurrences and number of subwatersheds with target species present. ............................................................................................................................ 9 Table 6. PINN 2014 survey results. New occurrences and number of subwatersheds with target species present. .......................................................................................................................... 12 Table 7. JOMU 2014 survey results. New occurrences of target species at Mount Wanda. .............. 13 Appendices Page Appendix A: 2014 list of priority invasive species at GOGA. ............................................................ 20 Appendix B: 2014 List of priority invasive species at PORE. ............................................................. 24 Appendix C: 2014 List of priority invasive species at PINN. ............................................................. 28 Appendix D: 2014 List of priority invasive species at JOMU. ............................................................ 30 Appendix E. Interactive web maps of 2014 survey