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Biological Assessment/Evaluation for Plants

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Biological Assessment/Evaluation for Plants BIOLOGICAL ASSESSMENT/EVALUATION FOR PLANTS, BOTANY REPORT, AND WEED RISK ASSESSMENT FOR OAK GLEN/BANNING HAZARDOUS FUELS REDUCTION PROJECT Front Country Ranger District, San Bernardino National Forest Prepared by: __/s/ Debra Nelson_______________________ April 9, 2010 Debra Nelson, District Botanist Date Contact Person: Debra Nelson Phone: (909) 382-2858 e-mail: [email protected] 1 SUMMARY The Oak Glen/Banning Hazardous Fuels Project involves creating and/or maintaining fuelbreaks to reduce wildfire risk to the communities of Oak Glen, Banning, Yucaipa, Forest Falls and Mountain Home Village in San Bernardino and Riverside counties, California. The purpose of this document is to evaluate the Oak Glen/Banning Community Protection Project in sufficient detail to determine its effects on Endangered, Threatened, Proposed, Sensitive, or other plant species of interest such as Management Indicator Species (MIS) as identified in the San Bernardino National Forest (SBNF) Land Management Plan (LMP). This report is prepared in accordance with the legal requirements set forth under Section 7 of the Endangered Species Act [19 U.S.C. 1536 (c)], and follows the standards established in the Forest Service Manual direction (FSM 2672.42). DETERMINATION OF EFFECTS – SUMMARY No Federally threatened or endangered plant species are known from within the project area. No designated or proposed critical habitat for T/E plants is present within the Project Area. No candidate species are known nor expected in the Project area. Modeled habitat for six endangered species, Berberis nevinii (E), Dodecahema leptoceras (E), Poa atropurpurea (E), Sidalcea pedata (E), Taraxacum californicum (E), and Thelypodium stenopetalum (E) has been mapped within the project area, however no suitable or occupied habitat was found during field surveys of the proposed activity areas. Therefore, the determination of effects for T/E species is: No Effect. Section 7 Endangered Species Act Consultation with USFWS is not required. Threatened or endangered plant species: It is my determination that implementation of the proposed action as described will not affect any threatened or endangered plant species. Section 7 Endangered Species Act Consultation with USFWS is not required. Critical habitat, candidate plant species, and proposed critical habitat: It is my determination that implementation of the proposed action as described will not affect designated critical habitat proposed species or proposed critical habitat as none are present in the project area. Endangered Species Act Section 7 Conferencing with U.S. Fish and Wildlife Service is not required. Forest Service sensitive plant species: It is my determination that implementation of the proposed action as described may affect individuals, but is not likely to result in a trend toward Federal listing or loss of viability of any sensitive plant species. Forest Service Watch list plants: Implementation of the proposed project may have some short- term impacts to watch list species however the project will not interfere with maintaining viable populations well distributed across the forest (36 CFR 219.19). 2 Contents SUMMARY ..................................................................................................................... 2 DETERMINATION OF EFFECTS – SUMMARY ................................................................... 2 PART I – INTRODUCTION ............................................................................................. 5 1.0 INTRODUCTION ................................................................................................................ 5 2.0 METHODS ........................................................................................................................... 5 2.1 Species Considered and Species Accounts ....................................................................... 5 2.2 Pre-field Reviews .............................................................................................................. 5 2.3 Botanical Methods and Surveys........................................................................................ 6 3.0 CURRENT MANAGEMENT DIRECTION ....................................................................... 7 4.0 DESCRIPTION OF PROPOSED ACTION ......................................................................... 7 4.1 Best Management Practices: .......................................................................................... 11 4.2 Resources Design Criteria: ............................................................................................ 13 5.0 EXISTING CONDITIONS ................................................................................................. 22 5.1 Project Area Description ................................................................................................. 22 6.0 CONNECTED ACTIONS Past, Current, and Reasonably Foreseeable Events Relevant to Cumulative Effects Analysis..................................................................................................... 23 7.0 EFFECTS OF NO ACTION .............................................................................................. 25 PART II – BOTANY REPORT ...................................................................................... 26 1.0 INTRODUCTION .............................................................................................................. 26 2.0 EXISTING ENVIRONMENT AND EFFECTS – GENERAL .......................................... 26 2.1 General Project Impacts to Plants ................................................................................... 26 3.0 EXISTING ENVIRONMENT AND EFFECTS - WATCH LIST SPECIES .................... 29 3.1 Watch List Plants ............................................................................................................ 29 PART III: BIOLOGICAL EVALUATION OF EFFECTS - FOREST SERVICE SENSITIVE SPECIES ...................................................................................................................... 32 1.0 EXISTING ENVIRONMENT AND EFFECTS FOR SENSITVE SPECIES ................... 32 1.2 Sensitive Plants -General ................................................................................................ 33 1.3 Sensitive plants by species .............................................................................................. 33 2.0 SUMMARY OF DETERMINATION OF EFFECTS FOR FS SENSITIVE SPECIES .... 41 PART IV: BIOLOGICAL ASSESSMENT OF IMPACTS TO THREATENED, ENDANGERED, PROPOSED, AND CANDIDATE SPECIES -PLANTS. ................................................. 41 1.0 CONSULTATION TO DATE ............................................................................................ 41 1.1 Species list ...................................................................................................................... 41 1.2 Modeled habitat ............................................................................................................. 41 2.0 EXISTING ENVIRONMENT AND EFFECTS - THREATENED, ENDANGERED, PROPOSED, AND CANDIDATE SPECIES........................................................................... 41 3.0 DETERMINATION OF EFFECTS FOR TEPC SPECIES ............................................... 47 PART V: MANAGEMENT INDICATOR SPECIES ....................................................... 47 1.0. INTRODUCTION ............................................................................................................. 47 2.0. MIS SELECTED FOR PROJECT ANALYSIS ................................................................ 47 3.0. MIS ENVIRONMENTAL BASELINE AND EFFECTS ANALYSIS ........................... 47 6.0 SUMMARY ....................................................................................................................... 52 3 PART VI: INVASIVE WEEDS RISK ASSESSMENT ................................................... 52 1.0 INTRODUCTION ............................................................................................................. 52 2.0 MANAGEMENT DIRECTION ......................................................................................... 53 3.0 METHODS ......................................................................................................................... 53 4.0 SURVEY RESULTS AND RISK ASSESSMENT ........................................................... 56 4.1 Weeds that pose severe to moderate risks ....................................................................... 56 4.2 Risk Assessment for Soil Disturbance Impacts ............................................................. 58 4.3 Risk of Transporting New Infestations into Project Area .............................................. 58 APPENDIX A: THREATENED, ENDANGERED, PROPOSED, SENSITIVE, and WATCHLIST PLANTS on the SAN BERNARDINO N.F. ................................................................... 59 APPENDIX B: MANAGEMENT DIRECTION AND LEGAL REQUIREMENTS ............ 64 1.0. JURISDICTIONS ............................................................................................................. 64 2.0 FEDERAL LAWS .............................................................................................................. 65 3.0 AGENCY DIRECTION ..................................................................................................... 66 4.0 SAN BERNARDINO NATIONAL FOREST POLICY, DIRECTION, LEGAL OBLIGATIONS .......................................................................................................................
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