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Field Site Locations from Phragmites Bioherbicide 2024 Field Experiment in Southeast Michigan
This dataset represents the locations of experimental plots that were used during the Phragmites bioherbicide 2024 field experiment, where a novel bio-based formula for herbicide was applied to Phragmites australis to test the efficacy of Phragmites bioherbicide as a tool to control invasive Phragmites. To meet the criteria for selection, a site must have relatively dry soil with no...
Otolith microchemistry for quantifying contributions of tributaries to predators and prey fish in the Upper Mississippi River
Laser ablation inductively coupled mass spectrometry was used to quantify Strontium:Calcium of the core of each otolith and classified each fish to a natal origin (i.e., tributary or potential resident). Predator fishes of focus were Bowfin and Largemouth Bass from the Upper Mississippi River (Pools 4, 8, and 13). Any use of trade, firm, or product names is for descriptive purposes only...
Model Estimates of Chlorophyll a and CyanoHABs Occurrence for Select New York State Lakes
This data release contains modeled estimates of chlorophyll a concentration and cyanoHAB occurrence for a subset of lakes in New York State. Estimates of chlorophyll a concentration were generated using a random forest model. Estimates of cyanoHAB occurrence were generated based on thresholds derived from bootstrapped logistic regression. All analysis was done in R 4.4.1 (R Core Team...
USGS National and Global Oil and Gas Assessment Project—Los Angeles Basin Province: Assessment Unit Boundaries, Assessment Input Data, and Fact Sheet Data Tables
This data release contains the boundaries of assessment units and input data for the assessment of undiscovered conventional and continuous oil and gas resources in the Los Angeles Basin Province, California. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within...
Groundwater-quality data in the Western Central Valley Domestic-Supply Aquifer Study Unit, 2023: Results from the California GAMA Priority Basin Project
The U.S. Geological Survey collected groundwater samples from 44 wells used for domestic and small system drinking water supplies in the western Central Valley, California in 2023. The wells were sampled for the Western Central Valley domestic-supply aquifer study unit of the State Water Resources Control Board Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin...
Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2024
This dataset includes fish population and habitat data collected in 2024 to support development of the upper Santa Ana River Habitat Conservation Plan for the Santa Ana Sucker (Catostomus santaanae) and the Arroyo Chub (Gila orcuttii) in the Santa Ana River, California.
Greatest-density regions for GPS locations of bison (Bos bison) at Tallgrass Prairie National Preserve, 2021-2023
This GIS shapefile, "density_contours," describes 1) a bison study area at Tallgrass Prairie National Preserve, Kansas, and 2) 25%, 50%, 75%, and 99% kernel density contours for locations of bison marked with GPS collars during 2021-2023. Percentages associated with contours describe nominal coverage, i.e., proportions of observations they are expected to encompass, and approximate the...
Greatest-density regions for GPS locations of bison (Bos bison) at Wind Cave National Park, 2019-2024
This GIS shapefile, "density_contours," describes 1) a bison study area at Wind Cave National Park, South Dakota, and 2) 25%, 50%, 75%, and 99% kernel density contours for locations of bison marked with GPS collars during 2019-2024. Percentages associated with contours describe nominal coverage, i.e., proportions of observations they are expected to encompass, and approximate the...
Greatest-density regions for GPS locations of bison (Bos bison) in the North Unit of Theodore Roosevelt National Park, 2017-2020
This GIS shapefile, "density_contours," describes 1) a bison study area in the North Unit of Theodore Roosevelt National Park, North Dakota and 2) 25%, 50%, 75%, and 99% kernel density contours for locations of bison marked with GPS collars during 2017-2020. Percentages associated with contours describe nominal coverage, i.e., proportions of observations they are expected to encompass...
Benthic community composition and chemistry of water, sediment, and periphyton throughout a copper treatment to eradicate invasive mussels in the Snake River, Idaho, 2023
This dataset includes information collected before and after a 2023 copper treatment was implemented by the State of Idaho to eradicate invasive quagga mussels in the Snake River, Idaho. Water, sediment, periphyton, and macroinvertebrates were sampled at Snake River sites upstream, within, and downstream of the copper treatment reach in order to evaluate the fate and transport of the...
Locations of bison (Bos bison) marked with GPS collars at Tallgrass Prairie National Preserve, 2021-2023
The GIS shapefile "bison_locations" provides 132996 locations of 5 adult female bison marked with global positioning system (GPS) collars at Tallgrass Prairie National Preserve during February 2021 to November 2023. We provide locations computed at 15-min and 1-h intervals for individual bison and the date and time of acquisition for each location. Users are advised that ground...
Elemental concentrations in biofilm and bed sediment collected from streams in the Clark Fork Basin, Montana, July 2023
This data release includes laboratory analyses for biofilm and bed-sediment samples collected from streams in the Clark Fork Basin, spanning from Butte to near Missoula, Montana. Samples were collected by the U.S. Geological Survey (USGS) in cooperation with the U.S. Environmental Protection Agency as part of a long-term monitoring program. Biofilm samples were collected once at 19 sites...