California Vernal Pool Assessment Preliminary Report

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California Vernal Pool Assessment Preliminary Report State of California The Resources Agency Department of Fish and Game California Vernal Pool Assessment Preliminary Report Prepared by: Todd Keeler-Wolf, Vegetation Ecologist Natural Diversity Database Diane R. Elam, Assistant Vegetation Ecologist Natural Diversity Database Kari Lewis, Lands Conservation Planner Lands and Natural Areas Program and Scott A. Flint, Land Conservation Planner Lands and Natural Areas Program May 1998 California Vernal Pool Assessment Preliminary Report Page 2 Table of Contents List of Tables..............................................................................................................................4 List of Figures.............................................................................................................................5 Preface ........................................................................................................................................6 Acknowledgments ......................................................................................................................6 Introduction ................................................................................................................................8 A Note on Vernal Pool Taxonomy.......................................................................................10 Conservation.........................................................................................................................11 Methods ....................................................................................................................................13 How Regions Were Defined.................................................................................................13 Reporting the Information ....................................................................................................14 Modoc Plateau Region .............................................................................................................17 Sierra Valley Region ................................................................................................................21 Northwestern Sacramento Valley Region ................................................................................25 Northeastern Sacramento Valley Region .................................................................................29 Southeastern Sacramento Valley Region .................................................................................33 Mendocino Region ...................................................................................................................38 Lake-Napa Region....................................................................................................................41 Santa Rosa Region....................................................................................................................45 Solano-Colusa Region..............................................................................................................49 Livermore Region.....................................................................................................................53 Central Coast Region................................................................................................................57 Carrizo Region..........................................................................................................................61 San Joaquin Valley Region ......................................................................................................64 Southern Sierra Foothills Region .............................................................................................68 Santa Barbara Region...............................................................................................................72 Western Riverside County Region ...........................................................................................76 San Diego Region.....................................................................................................................81 Conclusions ..............................................................................................................................87 Immediate Action.................................................................................................................87 Long-Range Action ..............................................................................................................90 Information Gaps..................................................................................................................91 Shifting Conservation Focus for Vernal Pools.....................................................................93 18 May 1998 California Vernal Pool Assessment Preliminary Report Page 3 Literature Cited.........................................................................................................................95 Appendix A: Sensitive Vernal Pool Taxa tracked by the NDDB ...........................................97 Plants ....................................................................................................................................97 Animals ................................................................................................................................99 Appendix B: Habitats and Vernal Pool Regions for Sensitive Vernal Pool Taxa.................100 Plants ..................................................................................................................................100 Animals ..............................................................................................................................109 Appendix C: Plant and Animal Taxa Known to be Associated with Vernal Pools ..............112 Plant Species Associated With Vernal Pools .....................................................................114 Catalog of Animal Taxa Associated With Vernal Pools....................................................147 Appendix D: Holland Vernal Pool Classification ..................................................................158 Hierarchy............................................................................................................................158 Definitions..........................................................................................................................158 18 May 1998 California Vernal Pool Assessment Preliminary Report Page 4 List of Tables Table 1. Information Summary for the Modoc Plateau Vernal Pool Region..........................19 Table 2. Information Summary for the Sierra Valley Vernal Pool Region.............................23 Table 3. Information Summary for the Northwestern Sacramento Valley Vernal Pool Region. ..........................................................................................................................................27 Table 4. Information Summary for the Northeastern Sacramento Valley Vernal Pool Region. ..........................................................................................................................................31 Table 5. Information Summary for the Southeastern Sacramento Valley Vernal Pool Region. ..........................................................................................................................................36 Table 6. Information Summary for the Mendocino Vernal Pool Region................................39 Table 7. Information Summary for the Lake-Napa Vernal Pool Region. ...............................43 Table 8. Information Summary for the Santa Rosa Vernal Pool Region. ...............................47 Table 9. Information Summary for the Solano-Colusa Vernal Pool Region...........................51 Table 10. Information Summary for the Livermore Vernal Pool Region. ..............................55 Table 11. Information Summary for the Central Coast Vernal Pool Region. .........................59 Table 12. Information Summary for the Carrizo Vernal Pool Region....................................62 Table 13. Information Summary for the San Joaquin Valley Vernal Pool Region.................66 Table 14. Information Summary for the Southern Sierra Foothills Region............................70 Table 15. Information Summary for the Santa Barbara Vernal Pool Region. ........................74 Table 16. Information Summary for the Western Riverside County Vernal Pool Region......79 Table 17. Information Summary for the San Diego Vernal Pool Region. ..............................84 Table 18. State-wide Information Summary for the California Vernal Pool Regions. ...........85 18 May 1998 California Vernal Pool Assessment Preliminary Report Page 5 List of Figures Figure 1. Map of the Vernal Pool Regions of California ........................................................12 Figure 2. Map of the Modoc Plateau Vernal Pool Region ......................................................16 Figure 3. Map of the Sierra Valley Vernal Pool Region .........................................................20 Figure 4. Map of the Northwestern Sacramento Valley Vernal Pool Region.........................24 Figure 5. Map of the Northeastern Sacramento Valley Vernal Pool Region ..........................28 Figure 6. Map of the Southeastern Sacramento Valley Vernal Pool Region ..........................32 Figure 7. Map of the Mendocino Vernal Pool Region ............................................................37 Figure 8. Map of the Lake - Napa Vernal Pool Region...........................................................40
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