Filters: Tags: southern California (X)38 results (39ms)
These data identify, in general, the areas of proposed critical habitat for the El Segundo blue butterfly (Euphilotes battoides allyn).
Tracklines and associated observations were mapped and analyzed using ArcMap (ESRI, Redlands, CA). GPS data were recorded in NAD27 map datum and projected to an USGS Albers Equal Area Conic map projection for presentation and subsequent density analyses. Concatenated GPS and observation data were then used to generate point and line coverages in ArcMap (ESRI, Redlands, CA). We designed a custom analytic tool using ArcMap Model Builder that allows for the construction and export of user-specified and effort-adjusted spatial binning of species observations along continuous trackines. For the purposes of this report, we calculated seabird density estimates and marine mammal counts along continuous 3.0-kilometer and...
Geologic map and digital database of the San Bernardino Wash7.5 minute quadrangle, Riverside County, California
This data set maps and describes the geology of the San Bernardino Wash 7.5 minutequadrangle, Riverside County, southern California. The quadrangle, situated inJoshua Tree National Park in the eastern Transverse Ranges physiographic andstructural province, encompasses parts of the northwestern Eagle Mountains,east-central Pinto Basin, and eastern Pinto Mountains.The quadrangle is underlain by a basement terrane comprising metamorphosedProterozoic strata, Mesozoic plutonic rocks, and Jurassic and Mesozoic and (or)Cenozoic hypabyssal dikes. The basement terrane is capped by a widespread Tertiaryerosion surface preserved in remnants in the Pinto and Eagle Mountains and buriedbeneath Cenozoic deposits in Pinto Basin....
Revised Critical Habitat for the Santa Ana Sucker (Catostomus Santaanae); Final Rule within Jurisdiction of the Carlsbad Fish and Wildlife Office (CFWO)
These data identify, in general, the areas where revised critical habitat for the Santa Ana sucker (Catostomus santaanae) has been designated.
Decision support for climate change adaptation and fire management strategies for at risk species in southern California
This project integrates fire risk models, species distribution models (SDMs) and population models with scenarios of future climate and land cover to project how the effects of climate-induced changes to species distributions and land use change will impact threatened species in fire-prone ecosystems. This project also identifies and prioritizes potential management responses to climate change (e.g. assisted colonization, fire management, land protection, dispersal corridors). Anticipated products include: 1) maps (digital and hard copy) of habitat suitability under current and future climate change, current and future projected urban growth and combinations of climate change and future projected urban growth, under...
Reported water levels for selected wells in the Mojave River and Morongo Groundwater Basins, Spring 2016
This data release represents a selection of tabular data used in the 2016 Mojave River and Morongo groundwater basin regional water table map. The data represent water level measurements provided by cooperating water agencies whose data collection standards may not meet the criteria set forth by the U.S. Geological Survey for entry and storage in the National Water Information System (NWIS).
Microsatellite genotype scores for a contemporary, range-wide sample of Santa Ana sucker in southern California
These data consist of microsatellite genotype scores for all samples of Santa Ana sucker (Catostomus santaanae) used in the study. Scores represent the allele calls for each microsatellite locus (i.e. DNA fragment length containing the microsatellite repeats), with each locus containing two scores representing the two allele copies detected. Included are five tables: Full dataset (includes genotypes from all samples), Santa Clara River samples only (includes genotypes only from samples collected in the Santa Clara River), Convert File format key (explains the data file format), Population identifiers (translates the numerical population identifiers to actual collecting sites), CASA sampling points (one coordinate...
Lands, including National System of Public Lands, State, and private lands, identified by BLM that are or will be considered for inclusion in a NEPA document to determine if lands open to geothermal leasing should be leased under 43 CFR Part 3200. These lands may include pending geothermal lease applications which were filed with BLM before the enactment of the Energy Policy Act of 2005 (Public Law 109-58). The lands may also include nominations, under 43 CFR 3203.10, by industry for lands requested for competitive geothermal leasing.
This dataset depicts inventoried and proposed areas on National Forests in Southern California. This dataset includes areas not represented in the USFS Inventoried Roadless Areas dataset for the US, due to pending judicial decisions regarding designatino of roadless areas. This dataset was developed during the 2005 Forest Planning Revision process. This is an update of the previous RARE II information, which now is considered a historical record for the affected forests.
Accurate, complete fuels data are critical for making fuel management decisions and for predicting fire behavior and fire effects. A fuel photo series is a useful reference that allows natural resource managers to quickly quantify fuel and vegetation properties by comparing on site conditions to a series of photos showing a range of calculated fuel loads within a similar vegetative community. While there are photo series available for a wide range of ecosystem types nationwide, this type of information is lacking for natural and mechanically treated chaparral. The most likely reason for this information gap is the difficulty in collecting and photographing fuels in these dense fuel types. The attached PDF document...
Regional Water Table (2016) in the Mojave River and Morongo Groundwater Basins, Southwestern Mojave Desert, California
Data for static groundwater-levels measured in about 645 wells during the period of January-April 2016 by the United States Geological Survey (USGS), the Mojave Water Agency, and other local water districts were compiled to construct a regional water-table map. The downloadable shapefile shows the elevation of the water table in the Mojave River and Morongo groundwater basins. This dataset is a digital representation of the contours presented on Plate 1 of Regional Water Table (2016) in the Mojave River and Morongo Groundwater Basins, Southwestern Mojave Desert, California: U.S. Geological Survey Scientific Investigation Map, doi:10.5066/sim3391, published by Meghan C. Dick and Adam R. Kjos. It is a continuation...
New record of California red-legged frog (Rana draytonii) in Whitewater Canyon, Riverside County, CA, USA
In February 2017, a population of California red-legged frog Rana draytonii was discovered in the southern foothills of the San Bernardino Mountains of Riverside County, California, near the edge of the species’ historic distribution. A few days after the first sightings of R. draytonii at the Whitewater Preserve, we conducted a visual daytime search for frogs, tadpoles and egg masses followed by a nighttime eye shine search for adult frogs. The captured frog weighed, measured (snout-to-urostyle [SU]), sampled for tissue and georeferenced using a GPS unit. Survey work was authorized by a U.S. Fish and Wildlife Service Recovery Permit and a California Department of Fish and Wildlife Scientific Collecting Permit....
Campground in Cable Canyon, southern California, where a debris flow on December 25, 2003, killed two people. A wildfire during the previous October burned hillslopes in the area, and heavy rains triggered the deadly debris flows. (Photograph by Sue Cannon, U.S. Geological Survey)
This dataset represents Scenic Classes from the Scenery Management System (SMS) for National Forests in southern California. The SMS is a tool for integrating the benefits, values, desires, and preferences regarding aesthetics and scenery for all levels of land and resource management planning. People are concerned about the quality of their environment and the aesthetic values of landscapes, particularly the scenery and spiritual values. Scenic integrity objectives have been designated for all areas of the national forest. At the project level, all national forest activities are subject to review of the scenic integrity objectives
New gravity measurements in the vicinity of San Bernardino, Californiawere collected to help define the characteristics of the Rialto-Coltonfault. The data were processed using standard reduction formulas andparameters. Rock properties such as lithology, magnetic susceptibilityand density also were measured at several locations.
Geologic map and digital database of the Porcupine Wash 7.5minute quadrangle, Riverside County, California
This data set maps and describes the geology of thePorcupine Wash 7.5 minute quadrangle, Riverside County,southern California. The quadrangle, situated in JoshuaTree National Park in the eastern Transverse Rangesphysiographic and structural province, encompasses partsof the Hexie Mountains, Cottonwood Mountains, northernEagle Mountains, and south flank of Pinto Basin. It isunderlain by a basement terrane comprising Proterozoicmetamorphic rocks, Mesozoic plutonic rocks, and Mesozoicand Mesozoic or Cenozoic hypabyssal dikes. The basementterrane is capped by a widespread Tertiary erosionsurface preserved in remnants in the Eagle and CottonwoodMountains and buried beneath Cenozoic deposits in PintoBasin. Locally, Miocene...
Geologic map and digital database of the Pinto Mountain 7.5minute quadrangle, Riverside County, California
This data set maps and describes the geology of the Pinto Mountain 7.5 minutequadrangle, Riverside County, southern California. The quadrangle, situated inJoshua Tree National Park in the eastern Transverse Ranges physiographic andstructural province, encompasses parts of the northeastern Hexie Mountains,central Pinto Mountains, and central Pinto Basin.The quadrangle is underlain by a basement terrane comprising Proterozoicmetamorphic rocks, Mesozoic plutonic rocks, and Mesozoic and Mesozoic and (or)Cenozoic hypabyssal dikes. The basement terrane is capped by a widespreadTertiary erosion surface preserved in remnants in the Hexie and Pinto Mountainsand buried beneath Cenozoic deposits in Pinto Basin. Locally, a...
The project objective is to transfer to California a previously developed prioritization framework that combines intraspecific genetic and morphological variation with traditionally used indices of biodiversity, and test its general utility for conservation prioritization. This project will integrate existing data on intraspecific variation of multiple species in the Santa Monica Mountains National Recreational Area with climate data and space-borne measurements of the environment to identify areas with high intraspecific variation.
This metadata file accompanies a report about the resultsof a study of the heavy minerals insamples collected from beaches and seafloor locationsin the Palos Verdes margin, south of the Los Angeles area,California. Samples were collected from 11 beach locationsbetween Hermosa Beach and Point Fermin, California. Boxcores were subsampled for 26 offshore samples.MINSPLSMC is an Arcinfo point coverage of the locations ofthe samples.
The San Bernardino 30'x60' quadrangle, southern California, is diagonallybisected by the San Andreas Fault Zone, separating the San Gabriel and SanBernardino Mountains, major elements of California's east-oriented TransverseRanges Province. Included in the southern part of the quadrangle is the northernpart of the Peninsular Ranges Province and the northeastern part of theoil-producing Los Angeles basin. The northern part of the quadrangle includesthe southern part of the Mojave Desert Province. Pre-Quaternary rocks within theSan Bernardino quadrangle consist of three extensive, well-defined basement rockassemblages, the San Gabriel Mountains, San Bernardino Mountains, and thePeninsular Ranges assemblages, and a...