Resource Management Plan for San Luis Rey River Park San Diego County June 2012 San Luis Rey River Park RMP June 2012 TABLE OF CONTENTS LIST OF ACRONYMS .............................................................................................. iv 1.0 INTRODUCTION ............................................................................................. 1 1.1 Purpose of Resource Management Plan ................................................ 1 1.1.1 Draft North County Plan ............................................................... 2 1.1.2 Draft North County Framework RMP and ASMDs ........................ 2 1.2 Implementation ........................................................................................ 3 1.2.1 Management Approach ................................................................ 3 1.2.2 Responsible Parties/Designation of Land Manager ...................... 4 1.2.3 Regulatory Context ....................................................................... 4 1.2.4 Funding Mechanism ..................................................................... 4 2.0 PROPERTY DESCRIPTION ........................................................................... 5 2.1 Property Location .................................................................................... 5 2.2 Geographical Setting ............................................................................... 5 2.2.1 Site Access ................................................................................... 5 2.2.2 Draft North County Plan Context .................................................. 8 2.2.3 County of San Diego General Plan Context ................................. 8 2.3 Physical and Climatic Conditions ............................................................ 8 2.3.1 Geology and Soils ........................................................................ 8 2.3.2 Climate ....................................................................................... 16 2.3.3 Hydrology ................................................................................... 17 2.3.4 Fire History and Fuel Management Activities ............................. 17 2.4 Land Use ............................................................................................... 21 2.4.1 On-Site Land Use ....................................................................... 21 2.4.2 Adjacent Properties .................................................................... 21 2.4.3 Easements, Rights or Restrictive Covenants ............................. 21 2.5 Trails ..................................................................................................... 22 3.0 BIOLOGICAL RESOURCES ........................................................................ 24 3.1 Vegetation Communities/Land Cover Types ......................................... 24 3.2 Plant Species ........................................................................................ 31 3.2.1 Plant Species Present ................................................................ 31 3.2.2 Rare, Threatened or Endangered Plants Present ...................... 31 3.2.3 Rare, Threatened or Endangered Plants with High Potential to Occur .......................................................................................... 31 3.2.4 Non-Native and/or Invasive Plant Species ................................. 32 3.3 Wildlife Species ..................................................................................... 39 3.3.1 Wildlife Species Present ............................................................. 39 3.3.2 Rare, Threatened or Endangered Wildlife Present ..................... 39 3.3.3 Rare, Threatened or Endangered Wildlife with High Potential to Occur .......................................................................................... 52 3.3.4 Non-native and/or Invasive Wildlife Species ............................... 56 3.4 Overall Biological and Conservation Value ........................................... 57 i San Luis Rey River Park RMP June 2012 3.4.1 Wildlife Linkages and Corridors .................................................. 59 4.0 CULTURAL RESOURCES ........................................................................... 60 4.1 Site History ............................................................................................ 60 4.1.1 Pre-Contact ................................................................................ 60 4.1.2 Post-Contact ............................................................................... 61 4.1.3 Historic Overview of the San Luis Rey River Park ...................... 62 4.2 Native American Consultation ............................................................... 64 4.3 Cultural Resource Descriptions ............................................................. 64 4.3.1 Prehistoric Resources ................................................................ 64 4.3.2 Historic Resources ..................................................................... 64 4.4 Resource Significance .......................................................................... 65 5.0 RESOURCE MANAGEMENT ....................................................................... 67 5.1 Management Goals and Objectives ...................................................... 67 5.1.1 Draft North County Plan Goals ................................................... 67 5.1.2 Management Directives and Implementation Measures ............. 67 5.2 Biological Resources Element (A) ......................................................... 69 5.2.1 Biological Monitoring .................................................................. 69 5.2.2 Draft North County Plan Covered Species-Specific Monitoring and Management .............................................................................. 71 5.2.3 Non-Native and/or Invasive Wildlife Species Control ................. 78 5.2.4 Future Research ......................................................................... 79 5.3 Vegetation Management Element (B) ................................................... 81 5.3.1 Habitat Restoration ..................................................................... 81 5.3.2 Invasive, Non-Native Plant Species Removal and Control ......... 82 5.3.3 Fire Prevention, Control, and Management ................................ 83 5.4 Public Use, Trails, and Recreation Element (C) .................................... 85 5.4.1 Public Access ............................................................................. 85 5.4.2 Fencing and Gates ..................................................................... 87 5.4.3 Trail and Access Road Maintenance .......................................... 87 5.4.4 Signage ...................................................................................... 87 5.5 Operations and Facility Maintenance Element (D) ................................ 89 5.5.1 Litter/Trash and Materials Storage ............................................. 89 5.5.2 Hydrological Management .......................................................... 89 5.5.3 Emergency, Safety and Police Services ..................................... 90 5.5.4 Adjacency Management Issues .................................................. 90 5.6 Cultural Resources Element (E) ............................................................ 92 6.0 REFERENCES .............................................................................................. 96 ii San Luis Rey River Park RMP June 2012 TABLES Table 1. Vegetation Communities/Land Cover Types within the Park .................... 24 Table 2. Non-native Invasive Plants within the Park ............................................... 32 Table 3. Significance Status of Cultural Resources within the Park ........................ 66 FIGURES Figure 1. Regional Map ............................................................................................. 6 Figure 2. Vicinity Map ............................................................................................... 7 Figure 3. Draft North County Plan Designations & Conserved Lands ....................... 9 Figure 4a. Soils - Index Map ................................................................................... 11 Figure 4b. Soils Map ............................................................................................... 12 Figure 4c. Soils Map ............................................................................................... 13 Figure 4d. Soils Map ............................................................................................... 14 Figure 5. Hydrology Map ......................................................................................... 18 Figure 6. Fire History .............................................................................................. 19 Figure 7. Land Use Map ......................................................................................... 20 Figure 8a. Vegetation Communities - Index Map .................................................... 25 Figure 8b. Vegetation Communities ........................................................................ 26 Figure 8c. Vegetation Communities ........................................................................ 27 Figure 8d. Vegetation Communities ........................................................................ 28 Figure 9a. Invasive Plant Species and Potential Restoration Areas - Index Map ... 33 Figure 9b. Invasive