Filters: Tags: Mojave Desert (X)
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Mojave Desert count of species
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Mojave Desert
Based on a composite of a selection set from the DRECP land cover map (based on CDFG 2012) that included âNorth American warm desert dunes and sand flatsâ, a selection set from the surficial geology dataset that included âSand Dunesâ (California Department of Conservation 2000), and California Desert Sand Dunes mapping (Dean 1978).CDFG (California Department of Fish and Game). 2012. 2012 Vegetation Map in Support of the Desert Renewable Energy Conservation Plan. Interim Report (1.1). Vegetation Classification and Mapping Program for the Desert Renewable Energy Conservation Plan and California Energy Commission. June 2012. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=47996&inline=1.Dean, Leslie E....
Egg production by desert tortoises was estimated at two sites in San Bernardino, California: Ivanpah Valley in 1980 and 1981 and Goffs in 1983, 1984 and 1985. Mean clutch frequencies were estimated for 1980 (1.60) and 1981 (1.10) from mass changes observed among sexually mature females weighed every 1-2 wk. Mean clutch frequencies in 1983 (1.89), 1984 (1.57) and 1985 (1.75) were estimated from periodic X-rays of females. Clutch sizes were also determined from radiographs. Tortoises at Goffs typically laid 1-2 clutches during May and June, but one female failed to lay eggs in 1984 and single tortoises laid three clutches in 1983 and 1985. If tortoises laid two clutches, the second was faintly visible in X-rays within...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Clutch frequency,
Clutch size,
Desert tortoise,
Egg production,
Hatching success,
Data on annual and perennial plants were collected during four survey years (1989, 1993, 1997, and 2012) at a 7.77 sq. km the Desert Tortoise Research Natural Area in the western Mojave Desert as part of a long-term research project on populations and habitat of the threatened desert tortoise (Gopherus agassizii) spanning 34 years. The data collection and analysis involved comparisons of vegetation inside and outside the fenced Desert Tortoise Research Natural Area.
Categories: Data;
Tags: California,
Desert Tortoise Research Natural Area,
Mojave Desert,
USGS-EMA-LOW-PL Mojave Desert/SW Desert,
biota,
This data release provides access to an aeromagnetic survey and magnetization boundaries over Garlock, California and surrounding areas in southern California. The survey extends from the city of Bakersfield across the southern Sierra Nevada and Tehachapi Mountains and west over Indian Wells Valley and the towns of Mojave and Rosamond to just northwest of the town of Barstow. These data were acquired between November 20, 2021 and January 17, 2022, by Eon Geosciences Inc., working under contract to the U.S. Geological Survey. The nominal flying height was based on a best fit, pre-planned, three-dimensional draped surface targeted at 305 m above terrain and a slope of 7%, subject to aircraft climb and descent limitations....
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set consists of digital water-table contours for the Mojave River, the Morongo and the Fort Irwin Ground-Water Basins. The U.S. Geological Survey constructed a water-table map of the Mojave River, the Morongo and the Fort Irwin Ground-Water Basins for ground-water levels measured during the period January-September 1996. Water-level data were collected from 632 wells to construct the contours. The water-table contours were...
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This geodatabase consists of a point feature class and related tables representing sample sites where vegetation data were collected from 2007 to 2013 in Clark and Lincoln Counties, Nevada. Samples are identified with a vegetation stand name and classified from the alliance to the class level of the National Vegetation Classification Standard (NVC; Federal Geographic Data Committee, 2008). The database is also available in tabular...
Funded by Arizona Game & Fish Department, our team of conservation biologists and GIS Analysts at Northern Arizona University are creating detailed linkage designs for 16 priority areas highlighted in the Wildlife Linkages Assesment. These plans identify and map multi-species corridors that will best maintain wildlife movement between wildland blocks, as well as highlight specific planning and road mitigation measures required to maintain connectivity in these corridors. Note: The linkage design reports are in compressed PDF format for faster download. Unfortunately, the compression occasionally makes small text on maps within the report difficult to read. If you would like a high-resolution PDF or PNG copy of any...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: BMP,
English,
GIS,
Madrean,
Mojave Desert,
This raster dataset contains biophysical settings (band 1) and wildfire frequencies (band 2) within the Mojave Desert ecological section of California. Biophysical settings were developed by the LANDFIRE program and fires occurences were mapped by the Monitoring Trends in Burn Severity (MTBS) program.
Categories: Data;
Types: Citation,
Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: California,
Mojave Desert,
biophysical settings,
deserts,
wildfire frequency
This data release describes micrometeorological and soil-moisture data collected from January 1, 2012 through December 31, 2016 at the Amargosa Desert Research Site adjacent to a low-level radioactive waste and hazardous chemical waste facility near Beatty, Nevada. Micrometeorological data include precipitation, solar radiation, net radiation, air temperature, relative humidity, saturated and ambient vapor pressure, wind speed and direction, barometric pressure, near-surface soil temperature, soil-heat flux, and soil-water content. Soil-moisture data include periodic measurements of volumetric water-content at four experimental sites that represent vegetated native soil, devegetated native soil, and two simulated...
Categories: Data;
Tags: Amargosa Desert,
Armagosa Desert Research Site,
Climatology,
Hydrogeology,
Mojave Desert,
This data release has been updated with new files. Please navigate to: Shryock, D.F, DeFalco, L.A., and Esque, T.C., 2019, Principal components of climate variation in the Desert Southwest (ver. 2.0, September 2019): U.S. Geological Survey data release, https://doi.org/10.5066/P9R8YKL0. Five principal components are used to represent the climate variation in an original set of 12 climate variables reflecting precipitation and temperature gradients. The dataset provides coverage for four regions (the Sonoran Desert, Mojave Desert, Colorado Plateau, and Southern Great Basin) and two time periods: current climate (defined as the 1980-2010 normal period) and future climate (defined as the 2040-2070 normal period)...
30 meter resolution raster representation of the NVCS Name values within the updated Land Cover/Natural Vegetation Communities vector dataset. The following description is from the vector version from which this dataset was derived: The California Department of Fish and Game (CDFG) Vegetation Classification and Mapping Program (VegCAMP) and contractor Aerial Information Systems (AIS) created a fine-scale vegetation map of a portion of the western Mojave Desert in California. The mapped area is bounded to the west and south by USDA Ecoregional Subsection 322Ag of the Mojave Desert (Miles and Goudey 1997). To the east, the portion mapped by AIS (approx. 4,202,000 acres) is bounded by the borders of a vegetation...
Madrean Warm Semi-Desert Wash Woodland/Scrub distribution within the DRECP study area.This community was extracted from the Land/Use Natural Vegetation Communities dataset provided by Aerial Information Systems and the California Dept. of Fish and Game. Extractions were based on the GroupCommunity field.The California Department of Fish and Wildlife (CDFW) Vegetation Classification and Mapping Program (VegCAMP) and contractor Aerial Information Systems (AIS) created a fine-scale vegetation map of a portion of the western Mojave Desert in California. The mapped area is bounded to the west and south by USDA Ecoregional Subsection 322Ag of the Mojave Desert (Miles and Goudey 1997). To the east, the portion mapped by...
Southwestern North American Riparian/Wash Scrub distribution within the DRECP study area.This community was extracted from the Land/Use Natural Vegetation Communities dataset provided by Aerial Information Systems and the California Dept. of Fish and Game. Extractions were based on the GroupCommunity field.The California Department of Fish and Wildlife (CDFW) Vegetation Classification and Mapping Program (VegCAMP) and contractor Aerial Information Systems (AIS) created a fine-scale vegetation map of a portion of the western Mojave Desert in California. The mapped area is bounded to the west and south by USDA Ecoregional Subsection 322Ag of the Mojave Desert (Miles and Goudey 1997). To the east, the portion mapped...
Arid West Freshwater Emergent Marsh distribution within the DRECP study area.This community was extracted from the Land/Use Natural Communities dataset, based on the GroupCommunity field.The California Department of Fish and Wildlife (CDFW) Vegetation Classification and Mapping Program (VegCAMP) and contractor Aerial Information Systems (AIS) created a fine-scale vegetation map of a portion of the western Mojave Desert in California. The mapped area is bounded to the west and south by USDA Ecoregional Subsection 322Ag of the Mojave Desert (Miles and Goudey 1997). To the east, the portion mapped by AIS (approx. 4,202,000 acres) is bounded by the borders of a vegetation map produced in 2004 for the Mojave Desert Ecosystem...
Intermontane Seral Shrubland distribution within the DRECP study area.This community was extracted from the Land/Use Natural Vegetation Communities dataset provided by Aerial Information Systems and the California Dept. of Fish and Game. Extractions were based on the GroupCommunity field.The California Department of Fish and Wildlife (CDFW) Vegetation Classification and Mapping Program (VegCAMP) and contractor Aerial Information Systems (AIS) created a fine-scale vegetation map of a portion of the western Mojave Desert in California. The mapped area is bounded to the west and south by USDA Ecoregional Subsection 322Ag of the Mojave Desert (Miles and Goudey 1997). To the east, the portion mapped by AIS (approx. 4,202,000...
These data show the multilocus genotypes, as well as extraction and sample genotype quality assessments for desert tortoise (Gopherus agassizii) scat samples. These data support the following publication: Mitelberg, A., Vandergast, A.G., Nussear, K.E., Dutcher, K. and Esque, T.C., 2019. Development of a Genotyping Protocol for Mojave Desert Tortoise Scat. Chelonian Conservation and Biology. https://doi.org/10.2744/CCB-1394.1.
Categories: Data;
Tags: California,
Genetics,
Mojave Desert,
Nevada,
USGS Science Data Catalog (SDC),
Climate Distance Mapper is an interactive web mapping application designed to facilitate informed seed sourcing decisions and to aid in directing regional seed collections. Implemented as a shiny web application (Chang et al. 2017), Climate Distance Mapper is hosted on the web at: https://usgs-werc-shinytools.shinyapps.io/Climate_Distance_Mapper/. The application is designed to guide restoration seed sourcing in the desert southwest by allowing users to interactively match seed sources with restoration sites climatic differences – in the form of multivariate climate distance values – between restoration sites and the surrounding landscape. Climatic distances are based on a combination of variables likely to influence...
The desert pocket mouse (Chaetodipus penicillatus) comprises 6 nominate subspecies that occupy warm, sandy desert-scrub habitats across the Mojave and Sonoran deserts. The most thorough morphological assessment within the species noted variable levels of distinctiveness, leading to uncertainty regarding the geographic distributions of subspecies. Subsequent genetic assessments using chromosomal, allozymic, and mitochondrial DNA (mtDNA) sequence data detected a general east?west divergence centered on the Colorado River, but few locations were included in these assessments. We investigated phylogeographic structure in C. penicillatus by sequencing regions of mtDNA for 220 individuals from 51 locations representing...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: American Society of Mammalogists,
Chaetodipus penicillatus,
Journal of Mammalogy,
Mojave Desert,
Sonoran Desert,
Blackbrush is a dominant shrub species in the transition zone between North American warm and cold deserts. Its seeds are dormant at dispersal and lose dormancy in response to moist chilling. Seeds from warmer low-elevation habitats have shorter chilling requirements and a higher optimum chilling temperature than those from colder habitats where winter snow regularly occurs. This ecotypic variation functions to time germination optimally in habitats with contrasting chilling regimes. Regulation of germination phenology is an important feature of the life history of this ecotonal species, which must be able to migrate elevationally through recruitment from seed in response to long-term climatic shifts in order to...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Colorado Plateau,
Journal of Arid Environments,
Mojave Desert,
chilling,
dormancy,
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