West Mojave Plan FEIR/S - Desert Managers Group

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Table 3-3Species Listed by USFWS as Threatened or EndangeredSPECIES STATUS DATE LISTEDArroyo toad (Bufo californicus) Endangered January 17, 1995Bald eagle (Haliaeetus leucocephalus)EndangeredThreatenedMarch 11, 1967August 11, 1995California red-legged frog (Rana aurora draytonii) Threatened May 20, 1996Cushenbury milkvetch (Astragalus albens) Endangered August 24, 1994Cushenbury buckwheatEndangered August 24, 1994(Eriogonum ovalifolium var. vineum)Cushenbury oxytheca (Oxytheca parishii var. goodmaniana) Endangered August 24, 1994Desert tortoise (Gopherus agassizii) Threatened April 2, 1990Inyo California towhee (Pipilo crissalis eremophilus) Threatened August 3, 1987Lane Mountain milkvetch (Astragalus jaegerianus) Endangered October 6, 1998Least Bell’s vireo (Vireo bellii pusillus) Endangered May 2, 1986Mojave tui chub (Gila bicolor mohavensis) Endangered October 13, 1970Parish’s daisy (Erigeron parishii) Threatened August 24, 1994Southwestern willow flycatcher (Empidonax traillii extimus) Endangered March 29, 19953.1.4.3 Recovery PlansUSFWS has completed recovery plans for six of these federally listed species. The mostimportant recommendations of these recovery plans are summarized below.• Bald Eagle (August 25, 1986). Recovery of the bald eagle was addressed on a regional basisand the Pacific Bald Eagle Recovery Plan presented criteria for downlisting to threatenedstatus, which were achieved in 1994. No recovery objectives or standards are applicable tothe West Mojave, though the plan addresses the wintering population in the San BernardinoMountains. Many of the eagles wintering at Lake Silverwood, Lake Arrowhead, and BigBear Lake utilize a night roost at Las Flores Ranch, which is within the West Mojaveplanning area. This property is included in the Summit Valley HCP, a multispecies plan thatis being prepared by the City of Hesperia. In 1999, the USFWS proposed delisting of thebald eagle because the national and regional goals for recovery were met (USFWS 1999). Adecision is pending.• Desert tortoise (June 28, 1994): Recovery of the desert tortoise to a point where it can bedelisted depends on actions within specified recovery units, which are considered separately.The recommended conservation measures are based on establishment of DWMAs withineach recovery unit, including the West Mojave Recovery Unit. Conservation actions toreduce impacts to tortoises from grazing, off-highway vehicle use, ravens, and incompatibleland uses are recommended for each DWMA. In addition, a program of monitoring andenvironmental education is suggested.Chapter 3 3-30
• Inyo California Towhee (April 10, 1998): Recovery and delisting of the Inyo Californiatowhee can be achieved with protection, management and enhancement of occupied riparianhabitat in the Argus Mountains. Habitat enhancement includes the removal of invasivevegetation, removal of wild burros and limitations on off-highway vehicle access. TheRecovery Plan also calls for monitoring of the habitat and towhee populations anddevelopment of a public outreach program.• Mojave tui chub (September 17, 1984): The Mojave tui chub can be downlisted to threatenedstatus after establishment of three additional self-sustaining populations. For delisting, reintroductionand establishment of viable populations into a majority of the historic habitat inthe Mojave River is necessary. This fish is currently maintained at small refugia at ChinaLake NAWS, Zyzzyx, and Camp Cady.• Southwestern Arroyo Toad (July 24, 1999): Protection of 20 occupied drainages andadjacent upland habitat in northern, southern and desert slope recovery units is necessary forthe arroyo toad to be downlisted to threatened. Protection of an additional 15 populations inthese recovery units is necessary for delisting. A portion of the desert slope recovery unit iswithin the West Mojave planning area, and includes Little Rock Creek in Los AngelesCounty and Deep Creek, Little Horsethief Creek and the Mojave River in San BernardinoCounty. Most occurrences of the arroyo toad are within the San Bernardino and AngelesNational Forests, with a small extension of occupied habitat extending onto private and BLMlands in the western Mojave Desert.• Southwestern willow flycatcher (August 30, 2002): Delisting of the southwestern willowflycatcher would require population increases and stabilization at specified river reacheswithin six Recovery Units. The Basin and Mojave Recovery Unit is found within the WestMojave Plan area, and contains two focus areas for management attention and conservationefforts: 1) the West Fork of the Mojave River from its headwaters to Mojave Forks dam(Hesperia area) and 2) the Mojave River between Spring Valley Lake and Bryman(Victorville-Apple Valley and San Bernardino County). The population size within theseunits must increase from the current level of 13 territories to 25 territories. Recommendedhabitat enhancement measures include removal of invasive riparian plants, such as Russianolive and saltcedar and trapping of brown-headed cowbirds, which parasitize flycatchernests.• California Red-legged Frog (May 28, 2002): Delisting can be considered after five criteriaare met. The first is protection of 35 core areas. Within the West Mojave are two core areas:the San Gabriel Mountains and the Forks of the Mojave River. The San Andreas Rift Zoneat the southwest edge of the planning area contains occupied habitat for this species, and theupper Mojave River contains suitable (and historical) habitat where the frog could be reestablished.The remaining criteria are stability of the populations, sufficient geographicaldistribution, successful establishment in historical habitat and needed research completed.Recovery Plans for other species (Least Bell’s vireo, carbonate endemic plants) have beenpublished in draft format and are awaiting public comment and finalization by USFWS.Chapter 3 3-31
Page 1 and 2: CHAPTER THREEAFFECTED ENVIRONMENT3.
Page 3 and 4: The CDCA Plan assigns a “multiple
Page 5 and 6: Desert Tortoise Research Natural Ar
Page 7 and 8: closure to target shooting. Hunting
Page 9 and 10: percentage of public land ownership
Page 11 and 12: As of March 2004, BLM had acquired
Page 13 and 14: Ripley Joshua Tree Woodland: The st
Page 15 and 16: 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: It is a goal of the town’s genera
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 and 68: freshwater or alkali wetlands, or o
Page 69 and 70: 3.3.2 Desert Tortoise3.3.2.1 Regula
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
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“52 mi 2 of higher density tortoi
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1984 Tortoise Range and Density Map
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Higher Density Tortoise Sign Count
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When data for the three lowest sign
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Occurrence of Tortoises Relative to
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Regional Declines in the Four DWMAs
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Tortoise Distribution within the Re
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Boarman (pers. comm., Nov 2002) has
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tortoises are either extirpated (La
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sites surveyed by LaRue between 199
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aseline data are lacking. Grasses p
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Canine Predators: This includes coy
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The spatial distribution of 12 of 1
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Predation Versus Scavenging of Juve
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Table 3-20Prevalence of Tortoises i
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(Jacobson et al. 1991, Brown et al.
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3.3.2.5.3 Older and Newer Die-off R
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Table 3-21Characteristics of Older
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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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