West Mojave Plan FEIR/S - Desert Managers Group

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Table 3-9Natural Communities and Ownership In The West Mojave (In Acres)COMMUNITY PRIVATE NPS BLM STATE MILITARY TOTALAlkali seep 59 0 0 0 0 59Alkali sink scrub 5,429 0 5,408 59 16,019 26,915Big sagebrush scrub 706 0 8,571 144 106,267 114,982Blackbush scrub 37,576 59,183 35,312 531 73,042 205,644Chamise chaparral 26,426 0 2,167 0 53 28,646Cottonwood-willow riparian5,350 0 6,183 0 0 11,533forestCreosote bush scrub 1,554,339 48,765 2,350,012 72,304 1,658,226 5,683,646Desert holly scrub 1,935 0 19,781 0 4,843 26,559Desert wash scrub 14,067 468 19,894 66 47,182 81,677Fan palm oasis 33 0 0 0 0 33Freshwater seep 388 0 0 0 0 388Gray pine-oak woodland 2,576 0 102 0 0 2,678Greasewood scrub 706 0 2,780 175 0 3,661Hopsage scrub 0 0 0 0 5,503 5,503Interior live oak woodland 556 0 33 0 0 589Jeffrey pine forest 1,150 0 662 0 0 1,812Joshua tree woodland 6,755 0 3,275 353 18,443 28,826Juniper woodland 47,453 0 13,926 154 1,453 62,986Mesquite bosque 2,977 39 3,688 407 467 7,578Mojave mixed woody scrub 174,672 127,236 377,250 10,431 409,019 1,098,608Mojave riparian forest 4,638 0 28 20 242 4,928Northern mixed chaparral 475 0 517 0 0 992Pinyon-juniper woodland 73,087 53,943 56,332 601 0 183,963Pinyon pine woodland 3,135 0 15,151 486 18,956 34,593Montane meadow 964 0 2 0 8 974Montane riparian scrub 1377 0 851 0 134 2,362Native grassland 3,146 0 229 0 0 3,375Rabbitbrush scrub 7,750 0 0 92 0 7,842Scrub oak chaparral 22,624 0 13,761 0 0 36,385Saltbush scrub 393,748 16 193,012 5,138 210,787 802,701Semi-desert chaparral 108,488 0 19,527 215 0 128,230Shadscale scrub 162 2 37,457 981 3,656 42,258TOTAL 2,502,747 289,652 3,185,911 92,157 2,574,300 8,640,926State includes State Lands Commission, State Parks, and Department of Fish and Game.Other owners: Unknown = 1,844; County = 1,142; Bureau of Indian Affairs = 166.Chapter 3 3-68
3.3.2 Desert Tortoise3.3.2.1 Regulatory StatusThe Mojave population of the desert tortoise includes those animals living north and westof the Colorado River in the Mojave Desert of California, Nevada, Arizona, southwestern Utah,and in the Colorado Desert in California. On August 4, 1989, the USFWS published anemergency rule listing the Mojave population of the desert tortoise as endangered (54 FederalRegister 32326). In its final rule, dated April 2, 1990, the USFWS determined the Mojavepopulation of the desert tortoise to be threatened (55 Federal Register 12178). The USFWSdesignated critical habitat for the desert tortoise in portions of California, Nevada, Arizona, andUtah in a final rule, published February 8, 1994 (59 Federal Register 5820). (USFWS 2002.)The tortoise was also listed as threatened throughout its known range in California by theCalifornia Fish and Game Commission in 1989.The desert tortoise is the official California State reptile, and has been protected byspecial State legislation that prohibits the taking or harming of the species since the 1930s. In1983, the Desert Tortoise Council petitioned the CDFG to list the desert tortoise as a threatenedspecies. The petition was withdrawn later, pending the federal status review by the USFWS. InAugust 1987, the Desert Tortoise Council resubmitted the petition to the California Fish andGame Commission (Commission). In November 1987, the Commission accepted the petition forreview, and in June 1989, the Commission designated the desert tortoise as a threatened species.(BLM and CDFG 1992.)The desert tortoise was designated a “sensitive species” in California in 1979 by BLM,which is authorized to designate species on public lands as “sensitive” after consultation withCDFG. The purpose of the designation was to provide increased management attention toprevent population and habitat declines that might result in federal or State listing as endangeredor threatened. The designation raises the level of concern for desert tortoises in theenvironmental review process. No particular habitat or population management action isrequired or prohibited by the sensitive species designation, although other federal statutes (suchas FESA and CESA) apply. (BLM and CDFG 1992.)3.3.2.2 Tortoise Habitat DesignationsDuring the past two decades, the BLM and USFWS have identified habitats that areimportant to tortoise management, conservation, and recovery. This section describes theestablishment of management areas to protect these habitats (see Table 3-10), their intent andfunction, and relationships to other land designations.Chapter 3 3-69
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CHAPTER THREEAFFECTED ENVIRONMENT3.
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The CDCA Plan assigns a “multiple
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Desert Tortoise Research Natural Ar
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closure to target shooting. Hunting
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percentage of public land ownership
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As of March 2004, BLM had acquired
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Ripley Joshua Tree Woodland: The st
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through “resource use” designat
Page 17 and 18: Significant Ecological Areas: There
Page 19 and 20: Wildlife and Wildflower Sanctuaries
Page 21 and 22: Mojave River Forks Regional Park: A
Page 23 and 24: oriented commercial uses are expect
Page 25 and 26: HCP would include mitigation measur
Page 27 and 28: 3.1.3.12 City of RidgecrestThe City
Page 29 and 30: It is a goal of the town’s genera
Page 31 and 32: • Inyo California Towhee (April 1
Page 33 and 34: (i) The taking will be incidental;(
Page 35 and 36: handled, and number accidentally ki
Page 37 and 38: 3.1.5 California Endangered Species
Page 39 and 40: Obtaining an Incidental Take Permit
Page 41 and 42: Monitoring: Monitoring is often the
Page 43 and 44: is so restrictive that project dela
Page 45 and 46: excess moisture. A minus 4 is consi
Page 47 and 48: Air BasinsN190I n y o C o395Ridgecr
Page 49 and 50: Federal PM10 Planning AreasN190Owen
Page 51 and 52: POLLUTANTOzone (O 3 )RespirablePart
Page 53 and 54: AIRBASINAIR QUALITYDISTRICTPOLLUTAN
Page 55 and 56: subtraction of transported ozone in
Page 57 and 58: The general soil information and ma
Page 59 and 60: The Marine Corps Ground Combat Cent
Page 61 and 62: The most permeable basin-fill depos
Page 63 and 64: Surface water was and is the major
Page 65 and 66: A relatively small number of introd
Page 67: freshwater or alkali wetlands, or o
Page 71 and 72: progress toward meeting the overall
Page 73 and 74: “higher density” and “lower d
Page 75 and 76: several seasons (Esque 1994 in Aver
Page 77 and 78: Assistant District Manager Molly Br
Page 79 and 80: • Since 1975, federal land manage
Page 81 and 82: “52 mi 2 of higher density tortoi
Page 83 and 84: 1984 Tortoise Range and Density Map
Page 85 and 86: Higher Density Tortoise Sign Count
Page 87 and 88: When data for the three lowest sign
Page 89 and 90: Occurrence of Tortoises Relative to
Page 91 and 92: Regional Declines in the Four DWMAs
Page 93 and 94: Tortoise Distribution within the Re
Page 95 and 96: Boarman (pers. comm., Nov 2002) has
Page 97 and 98: tortoises are either extirpated (La
Page 99 and 100: sites surveyed by LaRue between 199
Page 101 and 102: aseline data are lacking. Grasses p
Page 103 and 104: Canine Predators: This includes coy
Page 105 and 106: The spatial distribution of 12 of 1
Page 107 and 108: Predation Versus Scavenging of Juve
Page 109 and 110: Table 3-20Prevalence of Tortoises i
Page 111 and 112: (Jacobson et al. 1991, Brown et al.
Page 113 and 114: 3.3.2.5.3 Older and Newer Die-off R
Page 115 and 116: Table 3-21Characteristics of Older
Page 117 and 118: Table 3-22Characteristics of Older
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of the Johnson Valley Open Area, an
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Distribution of Recreational and Re
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Tortoises and Burrows Crushed: Vehi
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TypeYearsSignCount98-99-01Distance2
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OHV Impacts to Soils: OHV use has r
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Rodman DWMA. There were no higher d
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of Dove Springs that has experience
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Both inside and adjacent to open ar
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3.3.2.6.6 Organized Competitive OHV
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3.3.2.7 Current Effectiveness of Ex
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Overall, one sees that 68% of the 3
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off regions discussed herein. Black
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ManixACECMojave fishhookcactusRainb
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Range of Mohave Ground SquirrelN190
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3.3.3.2.2 Seasonal ActivityThe MGS
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1996). As herbaceous annuals appear
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1998 Mohave Ground Squirrel Transec
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Finally, the 84% success rate was a
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LaRue characterized substrates at t
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There were no MGS occurrences in 28
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certain shrubs (e.g. winterfat) tha
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NAWS China Lake 1993). As discussed
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Cumulatively, one finds there to be
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Citing Bury and Luckenbach (1977),
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the MGS is restricted to about 7,00
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Habitat Management Plans (HMPs) wer
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Basic to the biology of bighorn she
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3.3.6 Birds3.3.6.1 Bendire’s Thra
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3.3.6.5 Golden EagleLife History: T
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The towhee recovery plan establishe
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Regulatory Status: Federal Endanger
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3.3.6.15 Western Yellow-billed Cuck
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Other major threats are flood contr
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Population Status in the Planning A
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on the inaccessible mountain slopes
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3.3.8.8 Kern BuckwheatLife History:
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Threats Affecting the Mojave Monkey
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3.3.8.16 Red Rock PoppyLife History
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populations show intergradation wit
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3.4.1.1 Regional EnvironmentIn tota
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Table 3-37Average Annual Units Cons
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2002 SOUTHERN CALIFORNIAEMPLOYMENT
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TABLE 3-382000 CENSUS DEMOGRAPHIC C
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to undergo a dramatic reversal to t
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3.4.1.5 Study Area Property Valuati
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The supply of private property in t
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ALLOTMENT NAME TYPE OF LIVESTOCK FO
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Grazing AllotmentsNOlanchaDarwinTun
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ALLOTMENT NAMEALLOTMENTACRESP. L. 1
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3.4.3 Mineral Potential and Develop
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Mineral Potential, Active and Inact
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Mineral Potential, Active and Inact
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development based on the results of
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MANAGEMENT AREATable 3-46Potential
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A third item, yttrium (on the USBM
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the California Department of Conser
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Table 3-49 shows the number of mini
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produces about 75,000 tons per year
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Table 3-50Most Important Deposits B
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3.4.3.5 Coolgardie MesaThe Coolgard
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Areas designated as regionally sign
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Recreationists engage in activities
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OPENAREADoveSpringsElMirageJawboneC
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cycle engine motorcycles in OHV rid
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One popular activity is dual sport
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Compliance With Regulations: Compli
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REGIONORCITYRidgecrestSanBernardino
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REGIONORCITYVictorville /AppleValle
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Rail: The West Mojave planning area
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Arterials: Arterials are routes wit
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Ridgecrest-Inyokern Sanitary Landfi
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approximately 3 miles south of the
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Trona-Agrus Transfer Station (SWIS
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The BLM is an agency of the U.S. De
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Route designations apply only to ro
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Utility Maintenance: Many powerline
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ACECNAME ANDNUMBERHarper Dry Lake(3
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SUBREGIONAmboyBighornCoyoteEastSier
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• All pipelines with diameters gr
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3.6.2 Energy Generation PlantsEnerg
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3.7 CULTURAL RESOURCES3.7.1 Archaeo
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seasonal movement from place to pla
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RIDGECREST FIELD OFFICEPROPERTY NAM
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ACECRose SpringFossil FallsLast Cha
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have been dated by radiocarbon and
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MYACENOZOICEPOCHTable 3-65Paleontol
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In the southern area, fossils of la
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At Twenty-Nine Palms, there is an u
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West Mojave Plan FEIR/S - Desert Managers Group

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