Annual Report 2005 (62.7MB) - Western Riverside County Regional ...

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2.0 HABITAT GAINS AND LOSSESThe rough step analysis was conducted utilizing the rough step formula in Section 6.7 of theMSHCP. Table 1, Rough Step Acreage Summary, compares the acres by vegetation type withineach rough step’s Criteria Area of available private lands (column 3) and additional Reserve landgoals (column 4) to acres conserved (column 5) and acres developed (column 7). The sixthcolumn includes the allowable development acreage targets by vegetation type for each roughstep, based on the amount of conservation that has occurred (column 5). For purposes of thisreport, RCA staff used conservation acreages (column 5) achieved by December 31, 2005, withineach rough step unit’s vegetation communities to ensure that development rates were notoutpacing conservation efforts within each vegetation community. Development rates werecalculated using allowable losses (derived from grading or building permits) between MSHCPimplementation on June 22, 2004, and the reporting period end on December 31, 2005. Whereacres authorized for development (column 7) are higher than the allowable developmentcalculated using the rough step formula (column 6), the vegetation community would beconsidered out of rough step.Rough step calculations are limited to the MSHCP Criteria Area. Acquisitions that haveoccurred outside of the Criteria Cells will count toward the overall MSHCP conservation goal of153,000 acres; however, they are not factored into the rough step formulas. Because acresacquired outside of the Criteria Cells are not considered in the rough step analysis, the rough stepacreage total in this section will not match the total acres acquired through the end of 2005 aslisted in Sections 2.2, 2.3, and 2.4.Additional acres were conserved within the boundaries of the rough step units that were notwithin key vegetation communities. These additionally conserved acres are not counted asconservation towards key vegetation communities with the rough step. These acres wereconserved for a variety of different reasons, such as meeting the MSHCP subunit and Area Plangoals or acquiring a vital property that included and/or linked key vegetation communities. Toaccurately report conservation in the Criteria Area, the analyses by individual rough step units inthis section include acres acquired within all vegetation communities within the Criteria Area ofeach rough step, including those vegetation communities where rough step goals do not exist.Acres acquired outside of the Criteria Area are not reflected in the following rough step tables.2.1.1 Rough Step 1Rough Step 1 encompasses 94,000 acres within the northwestern corner of western RiversideCounty and includes the Prado Basin, Santa Ana River, Delhi Sands flower-loving fly habitat,and the Jurupa Mountains (see Figure 3, Rough Step Unit #1). It is bounded by Interstate 91 tothe southeast, Cleveland National Forest to the southwest, and Orange and San BernardinoCounties to the north and west. Within Rough Step 1, there are approximately 10,000 acresWestern Riverside County MSHCP October 2006Annual Report (January 1, 2005 through December 31, 2005) 2-3
2.0 HABITAT GAINS AND LOSSESRoughStepAnalysisUnit1TABLE 1Rough Step Acreage SummaryFrom Table 6-3 in MSHCPPrivateAllowableLandDevelopment Total AcresAcres Additional Total Acres Acreage Authorized forwithin the Reserve Conserved through Development byCriteria Land (between December 31, Cities and theArea in Acreage Goal February 2005 (Utilizing County (betweenthe for the Key 2000 and Rough Step June 22, 2004,Key Vegetation Communities Analysis Vegetation December Forecasting and December 31,within Analysis UnitUnit Community 31, 2005) Formula)2005)Coastal Sage Scrub 1,080 800 167 58 42Grasslands 820 180 0 0 20Riparian Scrub, Woodland, Forest 680 550 0 0 42 δ Coastal Sage Scrub 14,950 10,340 2,174 969 77Grasslands 8,570 4,780 822 652 111Riparian Scrub, Woodland, Forest 590 460 137 39 3Riversidean Alluvial Fan Sage Scrub 1,190 1,110 159 11 1Woodlands and Forests 290 170 12 9 0345678Coastal Sage Scrub 3,670 2,050 0 0 56Grasslands 4,690 900 39 164 204Playas and Vernal Pools 4,340 3,830 608 81 0Riparian Scrub, Woodland, Forest 220 110 3 3 0Riversidean Alluvial Fan Sage Scrub 190 100 0 0 2Coastal Sage Scrub 21,340 17,460 795 177 415Desert Scrubs 4,340 3,680 66 12 44Grasslands 10,990 5,960 143 121 350Riparian Scrub, Woodland and1,420 1,320 0 0 0ForestRiversidean Alluvial Fan Sage Scrub 1,160 1,090 40 3 2Woodlands and Forests 1,560 870 52 41 24Coastal Sage Scrub 1,540 370 4 12 104Grasslands 3,880 1,010 11 31 295Riparian Scrub, Woodland, Forest 550 460 0 0 20Riversidean Alluvial Fan Sage Scrub 370 260 0 0 14Woodlands and Forests 2,080 1,000 0 0 72Coastal Sage Scrub 4,980 4,060 687 156 172Grasslands 6,190 3,690 656 444 370Riparian Scrub, Woodland, Forest 270 210 6 2 12Woodlands and Forests 140 110 24 7 5Coastal Sage Scrub 9,210 7,090 1,007 301 143Grasslands 3,620 1,550 105 141 24Woodlands and Forests 490 330 16 8 0Riparian Scrub, Woodland, Forest 570 460 34 8 5Riversidean Alluvial Fan Sage Scrub 400 350 0 0 8Coastal Sage Scrub 6,400 4,940 1,180 349 304Grasslands 3,690 1,840 101 102 475Riparian Scrub, Woodland, Forest 280 250 58 7 3Riversidean Alluvial Fan Sage Scrub 190 130 0 0 29 No vegetation communities inAnalysis Unit 9 were identified forrough step analyses.δThe acres acquired reflect a reduction of a total of 2,540 acres of Stephens’ kangaroo rat habitat within different vegetationcommunities in Rough Step 2 as a result of the March Air Force Base Reserve tradeout for Stephens’ kangaroo rat habitatas mapped by Riverside County in 2001 within the boundaries of the Potrero acquisition.Western Riverside County MSHCP October 2006Annual Report (January 1, 2005 through December 31, 2005) 2-4
Page 1 and 2: Western Riverside CountyRegional Co
Page 3 and 4: Western Riverside CountyMULTIPLE SP
Page 5 and 6: TABLE OF CONTENTSSectionPage No.3.4
Page 7 and 8: TABLE OF CONTENTSSectionPage No.LIS
Page 9 and 10: EXECUTIVE SUMMARY• Ongoing manage
Page 11 and 12: EXECUTIVE SUMMARYfunctions as an ea
Page 13 and 14: EXECUTIVE SUMMARYArea Plan, have be
Page 15 and 16: 1.0 INTRODUCTION1.0 INTRODUCTION1.1
Page 17 and 18: 1.0 INTRODUCTION1.2 Reporting Requi
Page 19 and 20: 1.0 INTRODUCTIONCollection of annua
Page 21: Western Riverside County MSHCP Roug
Page 26 and 27: 2.0 HABITAT GAINS AND LOSSESDelhi S
Page 29 and 30: 2.0 HABITAT GAINS AND LOSSESWithin
Page 31 and 32: 2.0 HABITAT GAINS AND LOSSESKey Veg
Page 34: 2.0 HABITAT GAINS AND LOSSESWithin
Page 37: 2.0 HABITAT GAINS AND LOSSESis acti
Page 40 and 41: LegendLendRough Step Unit Boundarie
Page 42: 2.0 HABITAT GAINS AND LOSSES2.1.8 R
Page 45 and 46: Western Riverside County MSHCP Area
Page 47 and 48: 2.0 HABITAT GAINS AND LOSSESon the
Page 49 and 50: 2.0 HABITAT GAINS AND LOSSESTABLE 1
Page 51 and 52: 2.0 HABITAT GAINS AND LOSSESDecembe
Page 53 and 54: 3.0 ACTIVITIES WITHIN PLAN AREA3.0
Page 55 and 56: 3.0 ACTIVITIES WITHIN PLAN AREAIn t
Page 57: 3.0 ACTIVITIES WITHIN PLAN AREA3.3.
Page 62 and 63: 3.0 ACTIVITIES WITHIN PLAN AREACoro
Page 66 and 67: 4.0 FUNDING SUMMARY4.0 FUNDING SUMM
Page 68 and 69: 4.0 FUNDING SUMMARYTABLE 17Permitte
Page 70 and 71: 5.0 MANAGEMENT ACTIVITIES5.0 MANAGE
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Figure 13
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5.0 MANAGEMENT ACTIVITIES5.6 Future
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6.0 MONITORING ACTIVITIES6.0 MONITO
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6.0 MONITORING ACTIVITIES6.3.2 Trai
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6.0 MONITORING ACTIVITIESTABLE 20Ac
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6.0 MONITORING ACTIVITIESCounty, Ca
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Figure 15. Covered Plant Species De
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Figure 16. Quino Checkerspot and De
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Figure 17. Small Mammal Trapping Lo
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Figure 18. Grasshopper Sparrow and
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Figure 19. Amphibian Stream Survey
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6.0 MONITORING ACTIVITIESTABLE 22Co
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6.0 MONITORING ACTIVITIES* Only obj
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7.0 REFERENCESUnited States Departm
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APPENDIX AADDITIONAL REPORTS AND IN
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