Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Freshwater Drum Diet, Age, and Morphology Data in Lake Erie; 2017, 2021, and 2022 Freshwater Drum Diet, Age, and Morphology Data in Lake Erie; 2017, 2021, and 2022
Impacts of dreissenid mussels (Dreissena spp.) on Great Lakes ecosystems are well documented, but a better understanding of mechanisms that cause variation in mussel abundance is needed. An outstanding question is how much mussel biomass is consumed by predation. To date, attention has mainly focused on invasive Round Goby (Neogobius melanostomus) predation of mussels. Biomass of native
Data for Development of a Risk Model of Domestic Dog Attacks on Threatened Agassiz’s Desert Tortoises (Gopherus agassizii) in the Mojave and Colorado Deserts of California Data for Development of a Risk Model of Domestic Dog Attacks on Threatened Agassiz’s Desert Tortoises (Gopherus agassizii) in the Mojave and Colorado Deserts of California
The single database, assembled retrospectively between 2004 and 2007, which includes the following information: site name, desert region, distance (km) to the nearest settlement from the tortoise, unique identification number for the tortoise, sex, wear or aging class of the carapace, size of the tortoise, evidence of trauma to the gular horn and to shell and limbs, year collected, and...
Attributes of forest loss, gain, and persistence areas from 2010 to 2020 - Upper Mississippi River System Attributes of forest loss, gain, and persistence areas from 2010 to 2020 - Upper Mississippi River System
To support floodplain forest research and management actions on the Upper Mississippi River System (UMRS), areas of forest loss, gain and persistence at least 0.1 hectare in size from 2010 to 2020 were mapped and analyzed. This forest cover transition data will allow researchers the ability to examine rates and patterns of forest cover loss, gain, and persistence and compare multiple...
Native freshwater mussel density and population estimates from a systematic survey in the Rappahannock River, Virginia, in 2024 Native freshwater mussel density and population estimates from a systematic survey in the Rappahannock River, Virginia, in 2024
Native freshwater mussels are a substantial resource of concern to resource managers because of their contribution to aquatic ecosystems, First Foods status for Native American tribes, and general imperilment. As such, resource managers in the USFWS Lower Great Lakes Fish and Wildlife Conservation Office partnered with USGS to characterize the native freshwater mussel assemblage in the...
Estimates of Elk Aggregation Metrics Calculated Across Varying Sample Sizes from Two Herds in Western Wyoming, USA Estimates of Elk Aggregation Metrics Calculated Across Varying Sample Sizes from Two Herds in Western Wyoming, USA
This data is a compilation of elk aggregation metrics (inter-animal distance, proximity rate, and kernel density contour area) calculated using GPS collar data from elk belonging to the Jackson and West Green River herds in western Wyoming, USA. The data represents two seasonal time periods (high- and low-density) for animals from each herd. Time periods of inference vary by herd and...
2020 Level 2 Aquatic Areas - Upper Mississippi River System 2020 Level 2 Aquatic Areas - Upper Mississippi River System
The U.S. Army Corps of Engineers' Upper Mississippi River Restoration (UMRR) program, through its Long Term Resource Monitoring (LTRM) element, collected aerial imagery of the systemic Upper Mississippi River System (UMRS) during the summer of 2020. A Land Cover/Land Use (LCU) spatial database was developed based on the 2020 aerial imagery, which adds a fourth systemic-wide database to...
Antimycin A cytotoxicity to rainbow trout gill cell line (RTgill-W1): Exploring a new screening approach for prioritizing pesticide candidates Antimycin A cytotoxicity to rainbow trout gill cell line (RTgill-W1): Exploring a new screening approach for prioritizing pesticide candidates
This dataset describes in vitro Rainbow trout (Oncorhynchus mykiss) RTgill-W1gill cell cytotoxicity assay fluorescence data used to estimate the effective concentration to cause 50% viability (EC50) of cells following antimycin A (complex and individual homologs) exposure. Antimycin A dosing stocks were analytically verified using high-performance liquid chromatography with tandem triple
MODPATH Model Used to Evaluate Flowpaths from Two Contaminant Plume Source Areas near Joint Base Cape Cod, Western Cape Cod, Massachusetts MODPATH Model Used to Evaluate Flowpaths from Two Contaminant Plume Source Areas near Joint Base Cape Cod, Western Cape Cod, Massachusetts
The U.S. Geological Survey (USGS) used an existing groundwater flow model to determine steady-state groundwater flowpaths from two contaminant plume source areas by using a particle tracking post-processing model (MODPATH; Pollock, 2012) as part of an assessment of potential contaminant discharge at the coast in Bourne, Massachusetts. The extents of the source areas, originating from two...
Geophysical grids, horizontal gradient maxima and depth to bedrock of the Blythe region, California and Arizona Geophysical grids, horizontal gradient maxima and depth to bedrock of the Blythe region, California and Arizona
This data release contains (1) geophysical grids, (2) horizontal gravity and residual magnetic gradient maxima and (3) inputs to a gravity inversion of Cenozoic basin thickness based on gravity measurements of the Blythe region of California and Arizona. Gridded data (geotiffs.zip) consist of the input isostatic gravity grid as well as grids of Cenozoic basin thickness and bedrock...
Data supporting "Detecting bumble bees in the wild using environmental DNA: development and validation of a qPCR assay for the endangered Franklin's bumble bee (Bombus franklini)" Data supporting "Detecting bumble bees in the wild using environmental DNA: development and validation of a qPCR assay for the endangered Franklin's bumble bee (Bombus franklini)"
This dataset includes quantitative polymerase chain reaction (qPCR) data for an in vitro test of the Bombus franklini eDNA assay using target and nontarget DNA extract, qPCR data for a plate used to calculate the limits of detection and quantification of the assay based on serial 10-fold dilutions of B. franklini gBlock, qPCR data for an in situ test of the assay using flower samples...
Northwestern Bay of Bengal (IODP Site U1445) Late Pliocene Paleosalinity Estimates Northwestern Bay of Bengal (IODP Site U1445) Late Pliocene Paleosalinity Estimates
Data are estimates of salinity based upon down-core planktic foram assemblages.
Remotely sensed observations using Landsat time-series from 2013-2023 to determine water savings for riparian corridor sites in the Lower Colorado River Basin affected by tamarisk defoliation Remotely sensed observations using Landsat time-series from 2013-2023 to determine water savings for riparian corridor sites in the Lower Colorado River Basin affected by tamarisk defoliation
These spatial and tabular data were compiled to have a decades-long record of the water usage in the riparian corridor for 27 selected sites where tamarisk (Tamarix spp) or saltcedar defoliation was reported by ground observations and/or exhibited in Google Imagery at locations across the Lower Colorado River Basin. Data for these sites was measured remotely for plant health as...