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32 results for “Mojave Desert”
Cover and frequency of biological soil crust community types, moss species, vascular plants, and abiotic land surface features, on gypsum & non-gypsum soils from the Chihuahuan and Mojave Deserts in 2023
This dataset contains raw and calculated percent cover and frequency data for biological soil crust (hereafter biocrust) functional groups, vascular plant functional groups, and abiotic land surface features on and off gypsum soils in the northern Chihuahuan and eastern Mojave Deserts. Abundance data were obtained from 20 study sites total, 10 located on soils derived from gypsum parent material and 10 located on soils derived from non-gypsum parent materials. Sites were grouped into 10 pairs, in which every gypsum site was partnered with a non-gypsum site located in the same region. Apart from soil type, partnered-site characteristics (topography, climate, elevation, slope, aspect, and presence of biocrusts) were held relatively constant. At each site, cover and frequency assessments were made using the line-point intercept method (LPI) and frequency quadrats (1.0 m^2), respectively. Biocrust functional groups included the following crusts: lichen, moss, incipient algal, light algal, dark algal, unknown photosynthetic crust, and vagrant cyanobacteria. Vascular plant categories included: perennial forbs, perennial graminoids, annual forbs, annual graminoids, subshrub, shrub, Yucca, and cacti. Abiotic land surface features included: woody litter, herbaceous litter, bare soil, rock, bedrock, and animal feces. Moss crusts identified within cover and frequency analyses were sampled, and classified to species level via microscopy. The resulting percent cover and frequency data was used to understand differences in biocrust and moss species abundance and diversity on and off gypsum soils; furthermore, how biocrust and moss species abundance was associated with the measured environmental variables. Soil physical and chemical data from this study can be accessed at knb-lter-jrn.210616002. This study and dataset are complete.
Soil physical and chemical properties of gypsum & non-gypsum soils from the Chihuahuan and Mojave Deserts in 2023
This dataset contains data for soil physical and chemical properties of gypsum and non-gypsum soils in the northern Chihuahuan and eastern Mojave Deserts. Data were obtained from 20 study sites total, 10 located on soils derived from gypsum parent material and 10 located on soils derived from non-gypsum parent materials. Sites were grouped into 10 pairs, in which every gypsum site was partnered with a non-gypsum site located in the same region. Apart from soil type, partnered-site characteristics (topography, climate, elevation, slope, aspect, and presence of biocrusts) were held relatively constant. Site info and characteristics data can be accessed at knb-lter-jrn.210616001. Soil physical properties included: percent gravel, percent < 2mm fraction, soil aggregate stability, and soil compaction. Soil chemical properties were: percent gypsum content, pH, EC, and soil soluble concentrations of calcium, magnesium, potassium, sulfur, and phosphorus. The resulting soil data was used to understand physical and chemical differences between gypsum and non-gypsum soils and to examine how biocrust community types and moss species abundance and composition were associated with the measured soil variables. This study and dataset are complete.
Figure 1 in Influence of environmental factors on surface activity of Paruroctonus marksi (Scorpiones: Vaejovidae) in the Mojave Desert
Figure 1. The mean abundance of scorpions (solid line) and water vapor pressure (dashed line) from August 2017 to September 2018.
Figure 2 in Influence of environmental factors on surface activity of Paruroctonus marksi (Scorpiones: Vaejovidae) in the Mojave Desert
Figure 2. Distance of adult scorpions from cover in relationship to water vapor pressure (grey squares) and moon illumination (dark triangles). The solid and dashed lines represent the trend line for water vapor pressure and moon illumination respectively.
Camera-trap data for fitting the random encounter model to estimate densities of coyotes and black-tailed jackrabbits in the Mojave Desert
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Ephemeral vegetation drivers of occupancy dynamics of Mojave desert tortoises (Gopherus agassizii)
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Data for fitting spatial capture-recapture (SCR) models to estimate spatially explicit demographics of Mojave desert tortoises on a demography plot in California, USA
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Data from: Evolutionary hotspots in the Mojave Desert
Genetic diversity within species provides the raw material for adaptation and evolution. Just as regions of high species diversity are conservation targets, identifying regions containing high genetic diversity and divergence within and among populations may be important to protect future evolutionary potential. When multiple co-distributed species show spatial overlap in high genetic diversity and divergence, these regions can be considered evolutionary hotspots. We mapped spatial population genetic structure for 17 animal species across the Mojave Desert, USA. We analyzed these in concurrence and located 10 regions of high genetic diversity, divergence or both among species. These were mainly concentrated along the western and southern boundaries where ecotones between mountain, grassland and desert habitat are prevalent, and along the Colorado River. We evaluated the extent to which these hotspots overlapped protected lands and utility-scale renewable energy development projects of the Bureau of Land Management. While 30–40% of the total hotspot area was categorized as protected, between 3–7% overlapped with proposed renewable energy project footprints, and up to 17% overlapped with project footprints combined with transmission corridors. Overlap of evolutionary hotspots with renewable energy development mainly occurred in 6 of the 10 identified hotspots. Resulting GIS-based maps can be incorporated into ongoing landscape planning efforts and highlight specific regions where further investigation of impacts to population persistence and genetic connectivity may be warranted.
Data from: Impact of solar and wind development on conservation values in the Mojave Desert
In 2010, The Nature Conservancy completed the Mojave Desert Ecoregional Assessment, which characterizes conservation values across nearly 130,000 km2 of the desert Southwest. Since this assessment was completed, several renewable energy facilities have been built in the Mojave Desert, thereby changing the conservation value of these lands. We have completed a new analysis of land use to reassess the conservation value of lands in two locations in the Mojave Desert where renewable energy development has been most intense: Ivanpah Valley, and the Western Mojave. We found that 99 of our 2.59-km2 planning units were impacted by development such that they would now be categorized as having lower conservation value, and most of these downgrades in conservation value were due to solar and wind development. Solar development alone was responsible for a direct development footprint 86.79 km2: 25.81 km2 of this was primarily high conservation value Bureau of Land Management lands in the Ivanpah Valley, and 60.99 km2 was privately owned lands, mostly of lower conservation value, in the Western Mojave. Our analyses allow us to understand patterns in renewable energy development in the mostly rapidly changing regions of the Mojave Desert. Our analyses also provide a baseline that will allow us to assess the effectiveness of the Desert Renewable Energy Conservation Plan in preventing development on lands of high conservation value over the coming decades.
Data from: A 37-year experimental study of effects of structural alterations on a shrub community in the Mojave Desert, California
1. In 1977 an experiment was initiated in the Mojave Desert to investigate how shrub interactions affect structure in a community dominated by Ambrosia dumosa and Larrea tridentata. Here, as in much of the Mojave, Larrea were regularly distributed, Ambrosia occurred in aggregations, and the two were randomly distributed relative to each other. Pre-dawn xylem pressure potentials (PDXPPs) of single Ambrosia or Larrea in centers of 100m2 circular plots were monitored to assess effects of intraspecific, interspecific, and total removals of neighboring shrubs. Contrary to theory, results over the next two years indicated interspecific interference was more intense than intraspecific interference in both species. 2. These plots were maintained through 2014. Measurements of seedling recruitment from 1980 to 2014, and of PDXPP, aboveground biomass, and canopy senescence from 2003 to 2014 were conducted. 3. Recruitment of both species was substantial immediately after the removals, but declined to very low levels after 1983. Ambrosia recruited into all Ambrosia and Total-Removal plots, but Larrea recruited only into plots that contained mature Ambrosia. 4. PDXPPs of monitored shrubs continued to be enhanced in removal plots for at least 27 years, but this changed from most being due to interspecific removals in both species to intraspecific removals causing most enhancement in Ambrosia and inter- and intraspecific removals causing nearly equal enhancements in Larrea. 5. Aboveground biomasses of monitored shrubs of Ambrosia and Larrea were 2.1X and 2.8X larger in Total-Removal plots, 1.6X and 1.7X larger in intraspecific removal plots, respectively, and 1.1X larger in interspecific removal plots for both species than those in Control plots, indicating the absence of intraspecific interference had the dominant long-term effect. 6. Canopy senescence differed between Ambrosia and Larrea in extent, timing and effect of specific removal treatments; it was greatest for both species in Controls, averaging 75% and 34%, respectively. 7. Synthesis. Shrub interactions and their relations to community structure are mechanistically and spatially complex. Differences between short-term and long-term responses to removals reveal multi-tiered, temporally dynamic feedback loops between shrub interactions and community structure driven by demographics, species-specific root growth, resource competition, communications, and territoriality.
Data from: Conservation planning for offsetting the impacts of development: a case study of biodiversity and renewable energy in the Mojave Desert
Balancing society's competing needs of development and conservation requires careful consideration of tradeoffs. Renewable energy development and biodiversity conservation are often considered beneficial environmental goals. However, the direct footprint and disturbance of renewable energy can displace species' habitat and negatively impact populations and communities if sited without ecological consideration. To mitigate residual impacts, offsets have emerged as a potentially useful tool after trying to avoid, minimize, or restore affected sites. Yet where many species or many sites are involved, the problem of efficiently designing a set of offset sites becomes increasingly complex. Spatial conservation prioritization tools are designed to handle this problem, but have seen little application to offset siting and analysis. To address this need we designed an offset siting support tool for the Desert Renewable Energy Conservation Plan (DRECP) of California, and present a case study of hypothetical impacts from solar development in the Western Mojave subsection. We compare two offset scenarios designed to mitigate a hypothetical 15,331 ha derived from proposed utility-scale solar energy development (USSED) projects. The first prioritizes offsets based precisely on impacted features, while the second offsets impacts based on the potential to maximize biodiversity conservation gains in the region. The two methods only agree on 28% of their prioritized sites and differ in meeting species-specific offset goals. Differences between the two scenarios highlight the importance of clearly specifying choices and priorities for offset siting and mitigation in general. Similarly, the effects of background climate and land use change may lessen the durability or effectiveness of offsets if not considered. Our offset siting support tool was designed specifically for the DRECP area, but with minor code modification could work well in other offset analyses, and provide continuing support for a potentially innovative mitigation solution to environmental impacts.
Fig. 2 in A New Genus and Species of the Tribe Attagenini (Coleoptera: Dermestidae) from the Mojave Desert of California
Fig. 2. Abdominal sterna of Bembidion sp. (Carabidae). Figs. 3–5. Structures of A. yuccae. 3) Male antenna; scale line ¼ 1 mm. 4) Male terga IX and X; scale line ¼ 0.02 mm. 5) Abdominal sterna.
Subspecies and Distribution. D.p.panamintinusMerriam,1894—SWUSA(restricteddistributioninthePanamintMtsoftheMojaveDesertinSECalifornia). D.p.argusensisHuey,1945—SWUSA(restricteddistributionintheArgusMtsoftheMojaveDesertinSECalifornia). D.p.caudatusHall,1946—SWUSA(ProvidenceMtsregionoftheMojaveDesertinSECaliforniaandadjacentSNevada). D.p.leucogenysGrinnell,1919—SWUSA(WedgeoftheGreatBasinDesertinECali-forniaandWNevada). D. p. mohavensis Grinnell, 1918 — SW USA (Owens Valley to Antelope Valley of the Mojave Desert of SC California). in Heteromyidae
Subspecies and Distribution. D.p.panamintinusMerriam,1894—SWUSA(restricteddistributioninthePanamintMtsoftheMojaveDesertinSECalifornia). D.p.argusensisHuey,1945—SWUSA(restricteddistributionintheArgusMtsoftheMojaveDesertinSECalifornia). D.p.caudatusHall,1946—SWUSA(ProvidenceMtsregionoftheMojaveDesertinSECaliforniaandadjacentSNevada). D.p.leucogenysGrinnell,1919—SWUSA(WedgeoftheGreatBasinDesertinECali-forniaandWNevada). D. p. mohavensis Grinnell, 1918 — SW USA (Owens Valley to Antelope Valley of the Mojave Desert of SC California).
Subspecies and Distribution. D. m. microps Merriam, 1904 — SW USA (Owens River drainage of W Mojave Desert, S California). D. m. alfredi Goldman, 1937 — W USA (Gunnison I, Great Salt Lake, Utah). D. m. aquilonius Willett, 1935 — W USA (lower elevations of the Great Basin Desert of NE California and NW Nevada). D. m. bonneuvillei Goldman, 1937 — W USA (Great Basin Desert of NE Nevada and NW Utah, corresponding closely with the former outline of Pleistocene Lake Bonneville). D. m. celsus Goldman, 1924 — SW USA (possibly disjunct distribution in Virgin River Valley of SW Utah and adjacent NW Arizona). D. m. centralis Hall & Dale, 1939 — W USA (Great Basin Desert of C & E Nevada). D. m. idahoensis Hall & Dale, 1939 — W USA (restricted to the Snake River Valley, SW Idaho). D. m. leucotis Goldman, 1931 — SW USA (restricted distribution between the Vermilion Cliffs and the brink of Marble Canyon of the Colorado River in N Arizona). D. m. levipes Merriam, 1904 — SW USA (restricted to Panamint Valley, S California). D. m. occidentalis Hall & Dale, 1939 — SW USA (Great Basin Desert in W & S Nevada and disjunct, restricted populations in the W Mojave Desert, SE California). D. m. preblei Goldman, 1921 — W USA (Great Basin Desert of SE Oregon and NW Nevada). D. m. russeolus Goldman, 1939 — W USA (Dolphin I, Great Salt Lake, Utah). D. m. subtenuis Goldman, 1939 -W USA (Badger, Carrington, and Stansbury Is, Great Salt Lake, and S on the mainland to Cedar Valley, NC Utah). in Heteromyidae
Subspecies and Distribution. D. m. microps Merriam, 1904 — SW USA (Owens River drainage of W Mojave Desert, S California). D. m. alfredi Goldman, 1937 — W USA (Gunnison I, Great Salt Lake, Utah). D. m. aquilonius Willett, 1935 — W USA (lower elevations of the Great Basin Desert of NE California and NW Nevada). D. m. bonneuvillei Goldman, 1937 — W USA (Great Basin Desert of NE Nevada and NW Utah, corresponding closely with the former outline of Pleistocene Lake Bonneville). D. m. celsus Goldman, 1924 — SW USA (possibly disjunct distribution in Virgin River Valley of SW Utah and adjacent NW Arizona). D. m. centralis Hall & Dale, 1939 — W USA (Great Basin Desert of C & E Nevada). D. m. idahoensis Hall & Dale, 1939 — W USA (restricted to the Snake River Valley, SW Idaho). D. m. leucotis Goldman, 1931 — SW USA (restricted distribution between the Vermilion Cliffs and the brink of Marble Canyon of the Colorado River in N Arizona). D. m. levipes Merriam, 1904 — SW USA (restricted to Panamint Valley, S California). D. m. occidentalis Hall & Dale, 1939 — SW USA (Great Basin Desert in W & S Nevada and disjunct, restricted populations in the W Mojave Desert, SE California). D. m. preblei Goldman, 1921 — W USA (Great Basin Desert of SE Oregon and NW Nevada). D. m. russeolus Goldman, 1939 — W USA (Dolphin I, Great Salt Lake, Utah). D. m. subtenuis Goldman, 1939 -W USA (Badger, Carrington, and Stansbury Is, Great Salt Lake, and S on the mainland to Cedar Valley, NC Utah).
Subspecies and Distribution. D. m. merriami Mearns, 1890 — SW USA and NW Mexico (desert regions from N Nevada and extreme SW Utah, through SE California and SW Arizona, to NE Baja California and Sonora). D. m. ambiguus Merriam, 1890 — SW USA and NW Mexico (N portion of the Chihuahuan Desert from NC New Mexico and W Texas, through E Chihuahua and Coahuila, to NE Durango, N Zacatecas, and C Nuevo Leon). D. m. annulus Huey, 1951 — NW Mexico (coastal plains of the Gulf of California, SE Baja California). D. m. arenivagus Elliot, 1904 — SW USA and NW Mexico (S Mojave Desert of SC California and E of Sierra Juarez and Sierra San Pedro Martir to C Baja California). D. m. atronasus Merriam, 1894 — NC Mexico (southern portion of the Chihuahuan Desert from EC Zacatecas, SE Coahuila, and SW Nuevo Leon to Aguascalientes and San Luis Potosi). D. m. brunensis Huey, 1951 — NW Mexico (Gulf of California coast of NE Baja California Sur). D. m. collinus Lidicker, 1960 — SW USA (San Felipe, Earthquake, La Puerta, and Aguanga valleys of SW California). D. m. frenatus Bole, 1936 — SW USA (SW Utah and NW Arizona). D. m. insularis Merriam, 1907 — NW Mexico (San José I, Gulf of California, Baja California Sur). D. m. margaritae Merriam, 1907 — NW Mexico (Santa Margarita I, Baja California Sur). D. m. mayensis Goldman, 1928 — NW Mexico (Gulf of California coastal plains of S Sonora and N Sinaloa). D. m. melanurus Merriam, 1893 — NW Mexico (Magdalena Plains and Cape Region of S Baja California Sur). D. m. mitchelli Mearns, 1897 — NW Mexico (Tiburon I, Gulf of California, Sonora). D. m. olivaceus Swarth, 1929 — SW USA and NW Mexico (transitional zone between the Sonoran Desert of SE Arizona and NE Sonora, and the Chihuahuan Desert of SW New Mexico and NW Chihuahua). D. m. parvus Rhoads, 1894 — SW USA (San Bernardino and San Jacinto valleys of SW California). D. m. platycephalus Merriam, 1907 — NW Mexico (Pacific slope S of the Sierra San Pedro Martir, S Baja California to the Vizcaino Desert of N Baja California Sur). D. m. quintinensis Huey, 1951 — NW Mexico (San Quintin Plain, Pacific coast of NW Baja California). D. m. trinidadensis Huey, 1951 — SW USA and NW Mexico (S California and N Baja California). D. m. vulcani Benson, 1934 — SW USA (disjunct and restricted distribution in Toroweap Valley, NW Arizona). in Heteromyidae
Subspecies and Distribution. D. m. merriami Mearns, 1890 — SW USA and NW Mexico (desert regions from N Nevada and extreme SW Utah, through SE California and SW Arizona, to NE Baja California and Sonora). D. m. ambiguus Merriam, 1890 — SW USA and NW Mexico (N portion of the Chihuahuan Desert from NC New Mexico and W Texas, through E Chihuahua and Coahuila, to NE Durango, N Zacatecas, and C Nuevo Leon). D. m. annulus Huey, 1951 — NW Mexico (coastal plains of the Gulf of California, SE Baja California). D. m. arenivagus Elliot, 1904 — SW USA and NW Mexico (S Mojave Desert of SC California and E of Sierra Juarez and Sierra San Pedro Martir to C Baja California). D. m. atronasus Merriam, 1894 — NC Mexico (southern portion of the Chihuahuan Desert from EC Zacatecas, SE Coahuila, and SW Nuevo Leon to Aguascalientes and San Luis Potosi). D. m. brunensis Huey, 1951 — NW Mexico (Gulf of California coast of NE Baja California Sur). D. m. collinus Lidicker, 1960 — SW USA (San Felipe, Earthquake, La Puerta, and Aguanga valleys of SW California). D. m. frenatus Bole, 1936 — SW USA (SW Utah and NW Arizona). D. m. insularis Merriam, 1907 — NW Mexico (San José I, Gulf of California, Baja California Sur). D. m. margaritae Merriam, 1907 — NW Mexico (Santa Margarita I, Baja California Sur). D. m. mayensis Goldman, 1928 — NW Mexico (Gulf of California coastal plains of S Sonora and N Sinaloa). D. m. melanurus Merriam, 1893 — NW Mexico (Magdalena Plains and Cape Region of S Baja California Sur). D. m. mitchelli Mearns, 1897 — NW Mexico (Tiburon I, Gulf of California, Sonora). D. m. olivaceus Swarth, 1929 — SW USA and NW Mexico (transitional zone between the Sonoran Desert of SE Arizona and NE Sonora, and the Chihuahuan Desert of SW New Mexico and NW Chihuahua). D. m. parvus Rhoads, 1894 — SW USA (San Bernardino and San Jacinto valleys of SW California). D. m. platycephalus Merriam, 1907 — NW Mexico (Pacific slope S of the Sierra San Pedro Martir, S Baja California to the Vizcaino Desert of N Baja California Sur). D. m. quintinensis Huey, 1951 — NW Mexico (San Quintin Plain, Pacific coast of NW Baja California). D. m. trinidadensis Huey, 1951 — SW USA and NW Mexico (S California and N Baja California). D. m. vulcani Benson, 1934 — SW USA (disjunct and restricted distribution in Toroweap Valley, NW Arizona).
Subspecies and Distribution. C.f.formosusMerriam,1889—WUSA(SWUtahandNWArizona). C.f.cinerascensNelson&Goldman,1929—NWMexico(GulfcoastofNBajaCali-forniaStonearElMarmol). C.f.incolatusHall,1941—WUSA(ENe-vadaandWUtah). C.f.infolatusHuey,1954—NWMexico(GulfcoastofSBajaCaliforniatonearSantaRosalia). C.f.melanurusHall,1941—WUSA(NECaliforniaandNWNevada). C.f.mesembrinusElliot,1904—SWUSAandNWMexico(SCaliforniaandNEBajaCalifornia). C. f. mohavensis Huey, 1938 — SW USA (Mojave Desert of S Nevada, SW Utah, NW Arizona, and S California). in Heteromyidae
Subspecies and Distribution. C.f.formosusMerriam,1889—WUSA(SWUtahandNWArizona). C.f.cinerascensNelson&Goldman,1929—NWMexico(GulfcoastofNBajaCali-forniaStonearElMarmol). C.f.incolatusHall,1941—WUSA(ENe-vadaandWUtah). C.f.infolatusHuey,1954—NWMexico(GulfcoastofSBajaCaliforniatonearSantaRosalia). C.f.melanurusHall,1941—WUSA(NECaliforniaandNWNevada). C.f.mesembrinusElliot,1904—SWUSAandNWMexico(SCaliforniaandNEBajaCalifornia). C. f. mohavensis Huey, 1938 — SW USA (Mojave Desert of S Nevada, SW Utah, NW Arizona, and S California).
Subspecies and Distribution. P. l. longimembris Coues, 1875 — SW USA (Mojave Desert and Transverse Ranges, SW California). P. l. aestivus Huey, 1928 — NW Mexico (W base Sierra Juarez to Valle de la Trinidad, N Baja California). P.l. arizonensis Goldman, 1931 — SW USA (SC Utah and NC Arizona to SE Nevada). P. l.bangsi Mearns, 1898 — SW USA (W Colorado Desert of S California). P. l. bombycinus Osgood, 1907 — SW USA and NW Mexico (lower Colorado River Valley of SE California, SW Arizona, NE Baja California, and NW Sonora). P. l. brevinasus Osgood, 1900 — SW USA (arid coastal basins of SW California). P. l. gulosus Hall, 1941 — W USA (along the W margin of former Pleistocene Lake Bonneville in the Great Basin of E Nevada and W Utah). P. l. internationalis Huey, 1939 — SW USA and NW Mexico (SC California and adjacent NC Baja California). P. l. kinoensis Huey, 1935 — NW Mexico (disjunct and geographically restricted population along Bahia Kino, W Sonora), but may be extinct. P. l. nevadensis Merriam, 1894 — W USA (Great Basin of SE Oregon, NE California, and NC Nevada). P. l. pacificus Mearns, 1898 — SW USA (coastal plains of SW California to the USA-Mexico border). P. I. panamintinus Merriam, 1894 — SW USA (Great Basin of W Nevada and SE California). P. l. pimensis Huey, 1937 — SW USA (disjunct distribution in SC Arizona). P. l. salinensis Bole, 1937 — SW USA (restricted distribution in the Salinas Valley of SE California). P. l. tularensis Richardson, 1937 — SW USA (restricted distribution in the upper valley of the Kern River, SC California). P. l. venustus Huey, 1930 — NW Mexico (known only from the type locality of San Agustin, NC Baja California). in Heteromyidae
Subspecies and Distribution. P. l. longimembris Coues, 1875 — SW USA (Mojave Desert and Transverse Ranges, SW California). P. l. aestivus Huey, 1928 — NW Mexico (W base Sierra Juarez to Valle de la Trinidad, N Baja California). P.l. arizonensis Goldman, 1931 — SW USA (SC Utah and NC Arizona to SE Nevada). P. l.bangsi Mearns, 1898 — SW USA (W Colorado Desert of S California). P. l. bombycinus Osgood, 1907 — SW USA and NW Mexico (lower Colorado River Valley of SE California, SW Arizona, NE Baja California, and NW Sonora). P. l. brevinasus Osgood, 1900 — SW USA (arid coastal basins of SW California). P. l. gulosus Hall, 1941 — W USA (along the W margin of former Pleistocene Lake Bonneville in the Great Basin of E Nevada and W Utah). P. l. internationalis Huey, 1939 — SW USA and NW Mexico (SC California and adjacent NC Baja California). P. l. kinoensis Huey, 1935 — NW Mexico (disjunct and geographically restricted population along Bahia Kino, W Sonora), but may be extinct. P. l. nevadensis Merriam, 1894 — W USA (Great Basin of SE Oregon, NE California, and NC Nevada). P. l. pacificus Mearns, 1898 — SW USA (coastal plains of SW California to the USA-Mexico border). P. I. panamintinus Merriam, 1894 — SW USA (Great Basin of W Nevada and SE California). P. l. pimensis Huey, 1937 — SW USA (disjunct distribution in SC Arizona). P. l. salinensis Bole, 1937 — SW USA (restricted distribution in the Salinas Valley of SE California). P. l. tularensis Richardson, 1937 — SW USA (restricted distribution in the upper valley of the Kern River, SC California). P. l. venustus Huey, 1930 — NW Mexico (known only from the type locality of San Agustin, NC Baja California).
Subspecies and Distribution. P.m.mollipilosusCoues,1875—WUSA(SCOregonWoftheColumbiaRiverandNECalifornia). P.m.bullatusDurrant&Lee,1956—SWUSA(restricteddistributioninSEUtah). P.m.clarusGoldman,1917—WUSA(SWMontana,SEIdaho,NEUtah,andSWWyoming). P.m.idahoensisGoldman,1922—WUSA(KingsBowlandWapilavafields,SnakeRiverPlainofSCIdaho). P.m.olivaceusMerriam,1889—WUSA(GreatBasininSCIdaho,Nevada,WUtah,andSECalifornia). P.m.trumbullensisBenson,1937—SWUSA(SWUtahandNWArizona). P. m. xanthanotus Grinnell, 1912 — SW USA (restricted distribution on the Mojave Desert slope of the Tehachapi Mts, S California). in Heteromyidae
Subspecies and Distribution. P.m.mollipilosusCoues,1875—WUSA(SCOregonWoftheColumbiaRiverandNECalifornia). P.m.bullatusDurrant&Lee,1956—SWUSA(restricteddistributioninSEUtah). P.m.clarusGoldman,1917—WUSA(SWMontana,SEIdaho,NEUtah,andSWWyoming). P.m.idahoensisGoldman,1922—WUSA(KingsBowlandWapilavafields,SnakeRiverPlainofSCIdaho). P.m.olivaceusMerriam,1889—WUSA(GreatBasininSCIdaho,Nevada,WUtah,andSECalifornia). P.m.trumbullensisBenson,1937—SWUSA(SWUtahandNWArizona). P. m. xanthanotus Grinnell, 1912 — SW USA (restricted distribution on the Mojave Desert slope of the Tehachapi Mts, S California).
Data from: Impact of solar and wind development on conservation values in the Mojave Desert
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Data from: Landscape genetic approaches to guide native plant restoration in the Mojave Desert
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