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Big Pine Key Habitat Conservation Plan

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Big Pine Key Habitat Conservation Plan Habitat Conservation Plan for Florida Key Deer (Odocoileus virginianus clavium) and other Protected Species on Big Pine Key and No Name Key, Monroe County, Florida Prepared for: U.S. Fish and Wildlife Service 1339 20th Street Vero Beach, Florida 32960-3559 Prepared by: Monroe County 2798 Overseas Highway, Suite 410 Marathon, Florida 33050 Florida Department of Transportation, District VI 1000 NW 111th Avenue, Room #6101 Miami, Florida 33172 Florida Department of Community Affairs 2796 Overseas Highway, Suite 212 Marathon, Florida 33050 With assistance from consultants: URS Corporation 700 S. Royal Poinciana Blvd., Suite 1000 Miami Springs, Florida 33166 April 2003 April 2006 Revision Table of Contents Section Page EXECUTIVE SUMMARY ..................................................................................................1 1. INTRODUCTION AND BACKGROUND.........................................................................9 1.1 Background and Purpose of the Plan..........................................................................9 1.1.1 Historical Background and Memorandum of Agreement..........................11 1.1.2 Coordinating Committee............................................................................12 1.1.3 Objectives of the Plan ................................................................................12 1.2 Plan Development Process and Methodology ..........................................................13 1.2.1 Technical Studies.......................................................................................13 1.2.2 Public Information and Involvement .........................................................13 1.3 HCP Covered Area ...................................................................................................15 1.4 Regulatory Basis of the HCP ....................................................................................15 1.4.1 Endangered Species Act............................................................................15 1.4.2 Clean Water Act.........................................................................................16 1.4.3 Section 10 of the Rivers and Harbors Act .................................................16 1.4.4 Other Federal Actions................................................................................17 1.5 Key Elements of the HCP.........................................................................................17 1.5.1 Background and Studies ............................................................................17 1.5.2 Covered Activities: Avoidance and Minimization of Impacts ..................18 1.5.3 Mitigation and Implementation..................................................................18 2. BIOLOGICAL CONDITIONS.........................................................................................20 2.1 Covered Species........................................................................................................20 2.1.1 Florida Key Deer (Odocoileus virginianus clavium).................................20 2.1.2 Lower Keys Marsh Rabbit (Sylvilagus palustris hefneri)..........................22 2.1.3 Eastern Indigo Snake (Drymarchon corais couperi).................................25 2.2 Species Not Covered.................................................................................................26 2.2.1 Federally Listed Species Not Covered.......................................................26 2.2.2 State Listed or Protected Species Not Covered .........................................27 2.3 Vegetation and Habitat .............................................................................................28 2.3.1 Pinelands....................................................................................................28 2.3.2 Hammocks .................................................................................................30 2.3.3 Freshwater Wetlands..................................................................................31 2.3.4 Saltwater Marsh/Buttonwood Marsh .........................................................32 2.3.5 Mangroves..................................................................................................32 2.4 Scientific Basis of the HCP: The Key Deer PVA Model and Its Application..........33 2.4.1 Field Studies of Key Deer Population Dynamics ......................................33 2.4.2 Development of the Key Deer PVA Model...............................................34 2.4.3 PVA Model Analysis and Results..............................................................38 2.4.4 Application of the PVA Model to the HCP ...............................................39 2.4.5 The Tier System: A Planning Tool to Manage Development and Conservation................................................................................................43 i Table of Contents Section Page 3. LAND USE CONDITIONS................................................................................................45 3.1 Introduction...............................................................................................................45 3.2 Land Ownership........................................................................................................45 3.3 Habitat Management Activities................................................................................47 3.4 Covered Activities....................................................................................................48 4. ALTERNATIVE PLANNING STRATEGIES ................................................................50 4.1 Introduction...............................................................................................................50 4.2 Planning Strategies Analyzed ...................................................................................51 4.2.1 Alternative #1: No Action Alternative/No Take.......................................51 4.2.2 Alternative #2: Reduced Take ..................................................................51 4.2.3 Alternative #3: Preferred Alternative........................................................51 4.3 Comparison of Alternatives ......................................................................................52 5. CONSERVATION STRATEGY AND PROCEDURES.................................................53 5.1 Biological Goals........................................................................................................53 5.1.1 Habitat Protection ......................................................................................53 5.1.2 Minimize the Increase of Human-Related Mortality of Key Deer ............53 5.2 Summary of Take and Its Effects on the Covered Species.......................................54 5.2.1 Florida Key Deer........................................................................................54 5.2.2 Lower Keys Marsh Rabbit.........................................................................55 5.2.3 Eastern Indigo Snake.................................................................................56 5.3 Conservation Strategy - Mitigation Measures and Procedures.................................56 5.3.1 Conservative Assumptions and Level of Take ..........................................56 5.3.2 Avoidance and Minimization.....................................................................57 5.3.3 Habitat Mitigation and Habitat Banking....................................................60 5.3.4 Habitat Management..................................................................................61 5.3.5 Regulatory Actions....................................................................................62 5.3.6 Other Considerations.................................................................................62 5.4 Monitoring and Reporting.........................................................................................63 5.4.1 Annual Reporting.......................................................................................64 5.5 Adaptive Management..............................................................................................65 5.6 Changed Circumstances............................................................................................66 5.7 Unforeseen Circumstances........................................................................................66 5.8 No Surprises..............................................................................................................66 6. IMPLEMENTATION AND FINANCING.......................................................................67 6.1 Regulatory Actions...................................................................................................67 6.1.1 Roles and Responsibilities .........................................................................67 6.1.2 Implementation Schedule...........................................................................67 6.2 Funding .....................................................................................................................68 6.3 Permit Amendment Procedures ................................................................................69 6.4 Permit Renewal or Extension....................................................................................70 7. REFERENCES....................................................................................................................71 ii Table of Contents
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