Data
Our interdisciplinary, integrated science teams develop various data sets in support of the USGS mission areas. This information then aids natural resource managers in decision making and support of the complex issues they face in today's world. The data and tools listed here are official USGS data releases.
Filter Total Items: 380
Arizona Grasshopper Sparrow nest monitoring data 2011 to 2013 Arizona Grasshopper Sparrow nest monitoring data 2011 to 2013
These data include nest-specific information about Arizona Grasshopper Sparrow nests monitored during 2011 to 2013. The data are formatted as we used them in Program MARK to evaluate factors affecting daily nest survival. Data includes information on when the nest was found, when it was last known to be active, nest fate, and nest age. In addition, we provide vegetation data from the...
Burn severity (2002) and field data (2012) from Tolhuaca National Park (Chile) Burn severity (2002) and field data (2012) from Tolhuaca National Park (Chile)
This data was used in the analysis for the article "Burn Severity Controls on Post-fire Araucaria-Nothofagus Regeneration in the Andean Cordillera" by T. Assal, M. Gonzalez and J. Sibold. The aim of the study was to investigate post-fire regeneration patterns of forests on the west slope of the Andes; to evaluate the relationship between remotely sensed burn severity and forest mortality...
Stable carbon and nitrogen isotope data for: 'Ecotoxicoparasitology of the gastrointestinal tracts of pinnipeds: effect of parasites on bioavailability of total mercury (THg)' Stable carbon and nitrogen isotope data for: 'Ecotoxicoparasitology of the gastrointestinal tracts of pinnipeds: effect of parasites on bioavailability of total mercury (THg)'
Parasites, such as acanthocephalans, cestodes, and some species of nematodes acquire nutrients from the lumen contents within the host gastrointestinal (GI) tract. For ubiquitous toxicants like mercury, both the host species and parasites are potentially exposed. The focus of this study was to determine if there is an effect of parasites on the dietary availability and therefore exposure...
Geomorphic, climate, streamflow and vegetation data sets to reconstruct channel and vegetation changes associated with the invasion of Russian olive along the Escalante River, Utah 1950-2015. Geomorphic, climate, streamflow and vegetation data sets to reconstruct channel and vegetation changes associated with the invasion of Russian olive along the Escalante River, Utah 1950-2015.
We analyzed historical aerial photography and used dendrochronology to quantify long-term spatial and temporal patterns of narrowing and vegetation expansion, including native cottonwood (Populus fremontii) and non-native Russian olive (Elaeagnus angustifolia), along the largely unregulated Escalante River in Utah, USA. Our general study area was between the town of Escalante and...
Woody riparian invasive plant presence, stem density, and rank dominance and environmental conditions in 2012 at 238 bridge crossings in the Colorado Headwaters, upper/middle Rio Grande, upper Arkansas, and South Platte River Basins, USA Woody riparian invasive plant presence, stem density, and rank dominance and environmental conditions in 2012 at 238 bridge crossings in the Colorado Headwaters, upper/middle Rio Grande, upper Arkansas, and South Platte River Basins, USA
This dataset presents observations and measurements of riparian plant invasion, community composition, and environmental conditions at 238 bridge crossings in four western USA river basins: the Colorado Headwaters, upper/middle Rio Grande, upper Arkansas River, and South Platte River (281,946 square kilometers). The 238 sites are a stratified random sample of all bridge crossings in the...
Bighorn Mountains, Wyoming Forest Mapping, 2013-2017 Bighorn Mountains, Wyoming Forest Mapping, 2013-2017
This data collection is associated with the project: "Status and Trends of Deciduous Communities in the Bighorn Mountains". It contains the project study area, model evaluation data, model input data, and model output data in the form of probability of occurrence rasters for deciduous and coniferous species, as well as a synthesis map. The aim of the study is to assess the current trends...
Data for shorebird migration across the prairie potholes in 2002 and 2011 Data for shorebird migration across the prairie potholes in 2002 and 2011
The data frame provides geo-referenced data on presence of six species of en route migrant shorebirds in wetlands within the prairie pothole region in the U.S. during the spring migration periods of 2002 and 2012. Surveys were conducted at wetlands within townships selected in a stratified random procedure, with strata based on landscape composition of agricultural cropland and total...
Polychlorinated biphenyl concentrations and lipid content in riparian spiders at the Ashtabula River Area of Concern, USA Polychlorinated biphenyl concentrations and lipid content in riparian spiders at the Ashtabula River Area of Concern, USA
We measured polychlorinated biphenyl (PCB) concentrations in two taxa of riparian spiders from nine sites in 2011 at the Ashtabula River Area of Concern. We analyzed the extracts for 122 congeners following EPA method SW846 Method 8270D using gas chromatography mass spectrometry in the selective ion monitoring (SIM) mode. All target compounds were quantified using the method of internal...
Magnetotelluric Data from the San Andreas Fault, Parkfield CA, 1990 Magnetotelluric Data from the San Andreas Fault, Parkfield CA, 1990
The U.S. Geological Survey (USGS) Geology, Geophysics and Geochemistry Science Center (GGGSC) collaborated with the USGS Data at Risk (DaR) team to preserve and release a subset of magnetotelluric data from the San Andreas Fault in Parkfield, California. The San Andreas Fault data were collected by the Branch of Geophysics, a precursor to the now GGGSC, between 1989 and 1994. The...
Data for forecasting buffelgrass distribution with global distribution data, local data, and physiological information Data for forecasting buffelgrass distribution with global distribution data, local data, and physiological information
This data bundle contains some of the inputs, all of the processing instructions and all outputs from two VisTrails/SAHM workflows, one creating a global habitat suitability model for buffelgrass and another creating a habitat suitability model for buffelgrass in Saguaro National Park, AZ. The bundle documentation files are: 1) '_archive_bundle_metadata.xml' (this file) which contains...
Standardized Precipitation Evaporation Index for the Upper Green River Basin (1896-2017) Standardized Precipitation Evaporation Index for the Upper Green River Basin (1896-2017)
The standardized precipitation evapotranspiration index (SPEI) was summarized for the Upper Green River Basin to quantify climate variability over the last century. The SPEI incorporates both precipitation and temperature data, therefore the index has the capacity to include the effects of temperature variability on drought. The SPEI considers the difference between precipitation and...
Software to Process and Preserve Legacy Magnetotelluric Data Software to Process and Preserve Legacy Magnetotelluric Data
The USGS Crustal Geophysics and Geochemistry Science Center (CGGSC) collaborated with the USGS Data at Risk (DaR) team to preserve and release a subset of magnetotelluric data from the San Andreas Fault in Parkfield, California. The San Andreas Fault data were collected by the Branch of Geophysics, a precursor to the now CGGSC, between 1989 and 1994. The magnetotelluric data selected for...