Draft Closed Basin Subbasin Summary
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Draft Closed Basin Subbasin Summary May 17, 2002 Prepared for the Northwest Power Planning Council Subbasin Team Leader Cindy Robertson, Idaho Department of Fish and Game Lead Writers Timothy D. Reynolds, TREC, Inc. Patricia A. Isaeff, TREC, Inc. Editor Randall C. Morris, TREC, Inc. Contributors (in alphabetical order): Bart Gamett, USDA Forest Service Marv Hoyt, Greater Yellowstone Coalition Howard Johnson, Safari Club International Patty Jones, USDI Bureau of Land Management Trent Jones, The Nature Conservancy Don Kemner, Idaho Department of Fish and Game Dan Kotansky, Bureau of Land Management Justin W. Krajewski, Idaho Soil Conservation Commission Jeff McCreary, Ducks Unlimited Alan May, The Nature Conservancy Kevin Meyer, Idaho Department of Fish and Game Deb Migonono, US Fish and Wildlife Service Brennon Orr, US Geological Survey Steve Rust, Idaho Department of Fish and Game Troy Saffle, Idaho Department of Environmental Quality Kathy Weaver, Idaho Soil Conservation Commission Michael Whitfield, Teton Regional Land Trust DRAFT: This document has not yet been reviewed or Approved by the Northwest Power Planning Council Closed Basin Subbasin Summary Table of Contents Background ........................................................................................................................................ 1 Introduction........................................................................................................................................ 2 Subbasin Description ......................................................................................................................... 3 General ....................................................................................................................................... 3 Rare and Endemic Plants Species ............................................................................................ 30 Noxious weeds ......................................................................................................................... 32 Protected Area.......................................................................................................................... 38 Fish and Wildlife Resources ............................................................................................................ 45 Fish and Wildlife Status ........................................................................................................... 45 Habitat Areas and Quality........................................................................................................ 75 Watershed Assessment............................................................................................................. 77 Streams and riparian-wetland functions have been altered...................................................... 83 Major Limiting Factors ............................................................................................................ 91 Artificial Fish Production......................................................................................................... 97 Existing and Past Conservation Efforts.................................................................................... 99 Present Subbasin Management ...................................................................................................... 102 Existing Plans, Polices and Guidelines .................................................................................. 102 Existing Goals, Objectives, and Strategies............................................................................. 114 Research, Monitoring and Evaluation Activities ................................................................... 149 Statement of Fish and Wildlife Needs.................................................................................... 155 Combined Aquatic & Terrestrial Needs................................................................................. 160 Upper Snake Closed Basin Subbasin Recommendations .............................................................. 165 Projects and Budgets .............................................................................................................. 165 Research, Monitoring and Evaluation Activities ................................................................... 170 Needed Future Actions........................................................................................................... 175 Combined Aquatic & Terrestrial Needs................................................................................. 180 Actions by Others................................................................................................................... 184 References...................................................................................................................................... 188 Closed Basin Subbasin Summary ii DRAFT May 17, 2002 Appendix A. Agencies & Organizations Contacted Regarding the Upper Closed Basin Subbasin Summary Appendix B. USGS Stream Flow Stations in the Closed Basin Appendix C. Census 2000 County Demographic Information for Closed Basin Appendix D. Southern Idaho Gamebird Research Group, 10 Year Summary Appendix E. Camas National Wildlife Refuge Appendix F. Reports and Publications from the USGS Appendix G. Fish Stocking by IDFG Appendix H. Publications of the Environmental Science and Research Foundation Table of Tables Table 1. General Closed Basin Characteristics ................................................................................. 5 Table 2. Geology of Snake River Closed Basins Subbasin: the percent occurrence of major geologic mapping units. (adapted from Bond and Wood 1978; Jensen et al. 1997). ................ 9 Table 3. Climatic regimes of watersheds within the Snake River Closed Basins Subbasin: .......... 11 Table 4. Closed Basin Watershed Condition Indicators. ................................................................ 16 Table 5. Closed Basin Watershed Vulnerability Indicators ............................................................ 17 Table 6. Closed Basin Total Maximum Daily Load (TMDL) 303d Listed Stream Segments........ 18 Table 7. Summary of existing beneficial uses and support statuses for 1993-96 water bodies in the Little Lost River Drainage (LLRITAT 1998).......................................................................... 20 Table 8. Percent representation of 11 PNV plant association groups within the Closed Basin Subbasin listed by major watershed (adapted from Hann et al. 1997). .................................. 25 Table 9. Percent representation of 30 land cover classes within Closed Basins Subbasin is listed by watershed (adapted from Landscape Dynamics Lab 1999).................................................... 26 Table 10. Partial list of riparian trees and shrubs in the Closed Basin............................................ 30 Table 11. Rare and endemic plant species known to occur within the Snake River Closed Basins Subbasin are listed by species with the number of population occurrences summarized by watershed (With Global rank G1 through G3 or State rank S1or S2)..................................... 31 Table 12. Occurrence of noxious weed species in Counties of the Closed Basins Subbasin.......... 33 Table 13. Land use patterns within the watersheds of Snake River Closed Basins Subbasin ........ 34 Table 14. Land ownership patterns within the watersheds of Snake River Closed Basins Subbasin. ................................................................................................................................................. 35 Table 15. Land use within the Little Lost River Key Watershed.................................................... 36 Table 16. Land ownership in the Medicine Lodge Watershed........................................................ 37 Table 17. Summary of USDA National Forest System Inventoried Roadless Areas within Snake River Closed Basins Subbasin................................................................................................. 39 Table 18. USDI Bureau of Land Management Wilderness Study Areas within Snake River Closed Basins Subbasin....................................................................................................................... 40 Table 19. Average monthly water storage (in 1,000s of acre feet) in Mackay Reservoir............... 41 Table 20.Average monthly water storage in Mud Lake (in 1,000s of acre feet).............................. 42 Table 21. Comparison of estimated trout/km in the Little Lost River between the Forest boundary and Summit Creek between 1984 and 1997 (Elle et al. 1987, Corsi and Elle 1989, Gammet 1999)........................................................................................................................................ 50 Table 22. Summary of waters and species stocked in the Little Lost River drainage (adapted from Idaho Department of Fish and Game stocking records). ......................................................... 52 Closed Basin Subbasin Summary iii DRAFT May 17, 2002 Table 23. Mid-Winter Raptor survey results for Clark and Butte Counties.................................... 55 Table 24. Antelope Herd Composition and Trend Survey results for Birch Creek ........................ 56 Table 25. Birch Creek pronghorn production survey results, 1973-2000....................................... 56 Table 26. Summary of Big Horn Sheep Populations in the Lost River Range, 1982-99...............