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This data represents a draft “Integrated” alternative from the DRECP Description and Comparative Evaluation of Draft DRECP Alternatives dated December 17, 2012. Each integrated alternative is comprised of three primary elements: Renewable Energy Development areas, Conservation Area Reserve System areas, and Other Lands.The Renewable Energy Development areas include Development Focus Areas (DFAs) in all alternatives and in Alternatives 1, 6, and 7 also include Solar PEIS Variance lands.The Conservation Area Reserve System includes three components: the BLM Land Use Plan Amendment (LUPA) areas, Conservation Planning Areas, and Existing Conservation. The BLM LUPA areas are comprised of Desert Conservation Lands...
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These data represent a digital map of the average diversity genetic landscape for 10 species: Anaxyrus punctatus, Chionactis occipitalis, Chaetodipus penicillatus, Crotophytus bicinctores, Crotalus cerastes, Homalonychus selenopoides, Homalonychus theologus, Lichanura trivirgata, Sceloporus magister, and Xantusia vigilis in the Mojave and Sonoran Deserts. Utility scale renewable energy development projects are currently proposed across the deserts of the Southwestern United States. Agencies that manage biological resources must understand the potential impacts of these projects and infrastructure (e.g., transmission corridors, substations, access roads, etc.) in order to select appropriate development sites and...
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Desert Renewable Energy Conservation Plan (DRECP) Boundary with 12km buffer
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This is an aggregate dataset for the DRECP 12 km buffer region, depicting the geographic boundaries of Grazing Allotments within BLM managed public lands. An allotment is an area of land designated and managed for grazing of livestock (43 CFR 4100.0-5). An allotment may include private, state, and public lands under the jurisdiction of the Bureau of Land Management and/or other federal agencies. An allotment may be subdivided into pastures. Range improvement projects are not depicted within this dataset.
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Vegetation Departure (VDEP) data product ranges from 0 - 100 to depict the amount current vegetation has departed from simulated historical vegetation reference conditions. This departure results from changes to species composition, structural stage, and canopy closure. VDEP is calculated based on changes to species composition, structural stage, and canopy closure using methods described in the Interagency Fire Regime Condition Class Guidebook. LANDFIRE VDEP is based on departure of current vegetation conditions from reference vegetation conditions only, whereas the Guidebook approach includes departure of current fire regimes from those of the reference period. LANDFIRE simulates historical vegetation reference...
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The desert bighorn sheep mountain habitat data provided by  Diane Mastalir (California Department of Fish and Wildlife) is intended to identify historic, current, and potential core habitat for desert bighorn sheep in California (excluding the Peninsular bighorn sheep).This layer represents mountain habitat with a slope of 15% or greater. It was created using a NED 30 meter resolution DEM clipped to the study area. Slope of 15% or greater was extracted from the 30 meter DEM. A conditional evaluation was performed on the image giving the output cell a value of 1.This dataset was resampled from 30m to 270m resolution by Conservation Biology Institute and generalized using majority filter and boundary clean techniques....
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This dataset represents current terrestrial intactness values (estimated at the 1km level) within the distribution of Inter-Mountain Dry Shrubland and Grassland. Terrestrial intactness is high in areas where development is low, vegetation intactness is high, and fragmentation is low. Consequently, this dataset serves as a general* indication of habitat quality within the distribution of this conservation element. Estimates of current terrestrial intactness were generated by an EEMS fuzzy logic model that integrates multiple measures of landscape development and vegetation intactness, including agriculture development (from LANDFIRE EVT v1.1), urban development (from LANDFIRE EVT v1.1 and NLCD Impervious Surfaces),...
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This dataset represents current terrestrial intactness values (estimated at the 1km level) within the distribution of Californian Warm Temperate Marsh/Seep. Terrestrial intactness is high in areas where development is low, vegetation intactness is high, and fragmentation is low. Consequently, this dataset serves as a general* indication of habitat quality within the distribution of this conservation element. Estimates of current terrestrial intactness were generated by an EEMS fuzzy logic model that integrates multiple measures of landscape development and vegetation intactness, including agriculture development (from LANDFIRE EVT v1.1), urban development (from LANDFIRE EVT v1.1 and NLCD Impervious Surfaces), linear...
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This dataset displays the Vector Ruggedness Measure (VRM) for the DRECP study site and surrounding 12 km buffer at 270m resolution. This dataset was originally derived at 30m resolution, using the 30m NED, and run with a 9x9 (270m) neighborhood size. The resulting VRM dataset was projected to CA Albers Equal Area NAD83 and resampled to 270m resolution to match the DRECP statistical species distribution models. The Vector Ruggedness Measure measures terrain ruggedness as the variation in three-dimensional orientation of grid cells within a neighborhood. Vector analysis is used to calculate the dispersion of vectors normal (orthogonal) to grid cells within the specified neighborhood. This method effectively captures...
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This dataset represents current terrestrial intactness values (estimated at the 1km level) within the modeled distribution of the Townsend's big-eared bat (Corynorhinus townsendii). Terrestrial intactness is high in areas where development is low, vegetation intactness is high, and fragmentation is low. Consequently, this dataset serves as a general* indication of habitat quality within the distribution of this conservation element. Estimates of current terrestrial intactness were generated by an EEMS fuzzy logic model that integrates multiple measures of landscape development and vegetation intactness, including agriculture development (from LANDFIRE EVT v1.1), urban development (from LANDFIRE EVT v1.1 and NLCD...
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This dataset represents current terrestrial intactness values (estimated at the 1km level) within the modeled distribution of the Burro deer (Odocoileus hemionus eremicus). Terrestrial intactness is high in areas where development is low, vegetation intactness is high, and fragmentation is low. Consequently, this dataset serves as a general* indication of habitat quality within the distribution of this conservation element. Estimates of current terrestrial intactness were generated by an EEMS fuzzy logic model that integrates multiple measures of landscape development and vegetation intactness, including agriculture development (from LANDFIRE EVT v1.1), urban development (from LANDFIRE EVT v1.1 and NLCD Impervious...
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This dataset represents current terrestrial intactness values (estimated at the 1km level) within the modeled distribution of the Arroyo toad (Anaxyrus (Bufo) californicus). Terrestrial intactness is high in areas where development is low, vegetation intactness is high, and fragmentation is low. Consequently, this dataset serves as a general* indication of habitat quality within the distribution of this conservation element.Estimates of current terrestrial intactness were generated by an EEMS fuzzy logic model that integrates multiple measures of landscape development and vegetation intactness, including agriculture development (from LANDFIRE EVT v1.1), urban development (from LANDFIRE EVT v1.1 and NLCD Impervious...
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Utility scale renewable energy development projects are currently proposed across the deserts of the Southwestern United States. Agencies that manage biological resources must understand the potential impacts of these projects and infrastructure (e.g., transmission corridors, substations, access roads, etc.) in order to select appropriate development sites and to mitigate for anticipated effects. Of major concern is determining how future development will impact wildlife movement and genetic exchange among core protected areas and whether increased fragmentation will impact species' abilities to adapt to changing environmental conditions. The adaptive and evolutionary potential of a species is ultimately dependent...
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Riparian invasive species distribution within the DRECP study area; created for use in terrestrial intactness modeling. This dataset is binary. A cell value of 1 indicates the presence of one or more invasive riparian species at that location. A cell value of 0 indicates the absence of riparian invasives at that location. This dataset was created by combining the following classes from LANDFIRE EVT V1.1, NatureServe Landcover, Jarnevich, et al., and Tamarisk 1965 line. LANDFIRE EVT V1.1 2180: Introduced Riparian Vegetation NatureServe Landcover 8480: Introduced Riparian Vegetation Jarnevich, et al (modeled Tamarisk) Thresholded at 0.6 Tamarisk 1965 line (http://www.tamariskmap.org) All line features...
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These data represent Palm Springs Little pocket mouse (Perognathus longimembris bangsi)Â detections, clipped to the DRECP boundary. 72 detections points obtained Feb. 2013 from CNDDB (California Department of Fish and Wildlife, Biogeographic Data Branch), MaNIS (http://manisnet.org/), and species locality data compiled by the California Mammal Species of Special Concern (MSSC) project.The DRECP has obtained special permission from the CA Dept. of Fish & Wildlife to display these data on public maps at scales smaller (more zoomed out) than 1:250,000. These data are not visible on maps zoomed in beyond this scale.Disclaimer: These data are not a complete representation of all available species data. There may be...
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Utility scale renewable energy development projects are currently proposed across the deserts of the Southwestern United States. Agencies that manage biological resources must understand the potential impacts of these projects and infrastructure (e.g., transmission corridors, substations, access roads, etc.) in order to select appropriate development sites and to mitigate for anticipated effects. Of major concern is determining how future development will impact wildlife movement and genetic exchange among core protected areas and whether increased fragmentation will impact species' abilities to adapt to changing environmental conditions. The adaptive and evolutionary potential of a species is ultimately dependent...
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This dataset represents current terrestrial intactness values (estimated at the 1km level) within the distribution of Mojave and Great Basin Upper Bajada and Toeslope. Terrestrial intactness is high in areas where development is low, vegetation intactness is high, and fragmentation is low. Consequently, this dataset serves as a general* indication of habitat quality within the distribution of this conservation element. Estimates of current terrestrial intactness were generated by an EEMS fuzzy logic model that integrates multiple measures of landscape development and vegetation intactness, including agriculture development (from LANDFIRE EVT v1.1), urban development (from LANDFIRE EVT v1.1 and NLCD Impervious Surfaces),...
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This dataset represents current terrestrial intactness values (estimated at the 1km level) within the distribution of California Annual and Perennial Grassland. Terrestrial intactness is high in areas where development is low, vegetation intactness is high, and fragmentation is low. Consequently, this dataset serves as a general* indication of habitat quality within the distribution of this conservation element. Estimates of current terrestrial intactness were generated by an EEMS fuzzy logic model that integrates multiple measures of landscape development and vegetation intactness, including agriculture development (from LANDFIRE EVT v1.1), urban development (from LANDFIRE EVT v1.1 and NLCD Impervious Surfaces),...
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This dataset represents current terrestrial intactness values (estimated at the 1km level) within the distribution of Arid West freshwater emergent marsh. Terrestrial intactness is high in areas where development is low, vegetation intactness is high, and fragmentation is low. Consequently, this dataset serves as a general* indication of habitat quality within the distribution of this conservation element. Estimates of current terrestrial intactness were generated by an EEMS fuzzy logic model that integrates multiple measures of landscape development and vegetation intactness, including agriculture development (from LANDFIRE EVT v1.1), urban development (from LANDFIRE EVT v1.1 and NLCD Impervious Surfaces), linear...


map background search result map search result map Alternative 4 (DECEMBER 2012 VERSION) - Development Focus Areas (DFAs), DRECP Mojave and Great Basin Upper Bajada and Toeslope - Habitat Intactness, DRECP Inter-Mountain Dry Shrubland and Grassland - Habitat Intactness, DRECP Californian Warm Temperate Marsh/Seep - Habitat Intactness, DRECP California Annual and Perennial Grassland - Habitat Intactness, DRECP Arid West Freshwater Emergent Marsh - Habitat Intactness, DRECP Terrain Ruggedness, DRECP Desert Bighorn Sheep - Species Distribution Model, DRECP Townsend's big-eared bat - Habitat Intactness, DRECP Burro deer - Habitat Intactness, DRECP Arroyo toad - Habitat Intactness, DRECP Palm Springs Little Pocket Mouse Detections - DRECP BLM Grazing Allotments, DRECP Riparian Invasive Species (LANDFIRE EVT V1.1, NatureServe Landcover, Jarnevich, Tamarisk 1965 line), DRECP Average genetic diversity landscape for 10 species, in the Mojave and Sonoran Deserts Xantusia vigilis - Genetic divergence landscape, in the Mojave and Sonoran Deserts Anaxyrus punctatus - Genetic diversity landscape, in the Mojave and Sonoran Desert Landfire Vegetation Departure, DRECP DRECP Boundary with 12km Buffer DRECP Boundary Arroyo toad - Habitat Intactness, DRECP Californian Warm Temperate Marsh/Seep - Habitat Intactness, DRECP Palm Springs Little Pocket Mouse Detections - DRECP Burro deer - Habitat Intactness, DRECP Arid West Freshwater Emergent Marsh - Habitat Intactness, DRECP Mojave and Great Basin Upper Bajada and Toeslope - Habitat Intactness, DRECP Inter-Mountain Dry Shrubland and Grassland - Habitat Intactness, DRECP California Annual and Perennial Grassland - Habitat Intactness, DRECP BLM Grazing Allotments, DRECP Alternative 4 (DECEMBER 2012 VERSION) - Development Focus Areas (DFAs), DRECP DRECP Boundary Townsend's big-eared bat - Habitat Intactness, DRECP Riparian Invasive Species (LANDFIRE EVT V1.1, NatureServe Landcover, Jarnevich, Tamarisk 1965 line), DRECP Landfire Vegetation Departure, DRECP DRECP Boundary with 12km Buffer Desert Bighorn Sheep - Species Distribution Model, DRECP Xantusia vigilis - Genetic divergence landscape, in the Mojave and Sonoran Deserts Anaxyrus punctatus - Genetic diversity landscape, in the Mojave and Sonoran Desert Terrain Ruggedness, DRECP Average genetic diversity landscape for 10 species, in the Mojave and Sonoran Deserts