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Sagebrush Maps for the Northern Great Plains, 2023 Sagebrush Maps for the Northern Great Plains, 2023
USGS scientists acquired aerial imagery from unmanned aerial vehicles (UAV) to map sagebrush at 25 sites in the Northern Great Plains during June 2023. Data include imagery with 1.5-centimeter (cm) resolution for each 300x300 meter (m) site and imagery at 0.75 cm for each of 10 to 12, 5x5 m plots within each site, and predicted areas of sagebrush for each site from models that classify...
American Pika Occurrences and Habitat Characteristics in the Northern Rocky Mountains and Cascade Mountains, 2015-2017 American Pika Occurrences and Habitat Characteristics in the Northern Rocky Mountains and Cascade Mountains, 2015-2017
USGS scientists surveyed for American pikas (Ochotona princeps) at sites of documented occurrence before 1980 to evaluate persistance throughout Montana, Wyoming, Idaho, Oregon, and Washington, USA, 2015-2017. Scientists also surveyed for pikas and characterized talus structure and temperature to map talus and identify micro-refugia associated with temperature within a focal study in...
Data and analytical code to model the growth rate of brown treesnakes (Boiga irregularis), Guam 2004-2013 Data and analytical code to model the growth rate of brown treesnakes (Boiga irregularis), Guam 2004-2013
The data set consists of three files pertaining to invasive Brown Treesnakes (Boiga irregularis) and temporally-associated weather covariates on Guam: 1) snout-vent length (SVL) and sex of brown treesnakes (bts_growth.csv), 2) precipitation (bts_rain.csv), and 3) seasonality (bts_season.csv). Snout-vent lengths in millimeters (mm) and sex of 270 individually marked and recaptured brown...
Morphometric data of Burmese python and White-tailed deer in South Florida associated with a feeding event, 2025 Morphometric data of Burmese python and White-tailed deer in South Florida associated with a feeding event, 2025
Morphometric data (mass, length, circumference, age) collected during an observation of a radio-telemetered female Burmese python (Python bivitattus) that ingested an adult female white-tailed deer (Odocoileus virginianus), retained the deer within the digestive tract for 10 days, and then vomited the deer coinciding with a drop in air temperature.
Soil-Water-Balance model of the Red River alluvial aquifer east of Lake Texoma, southeastern Oklahoma, 1980-2022 Soil-Water-Balance model of the Red River alluvial aquifer east of Lake Texoma, southeastern Oklahoma, 1980-2022
The U.S. Geological Survey (USGS), in cooperation with the Oklahoma Water Resources Board (OWRB), constructed a Soil-Water-Balance (SWB) model of the Red River alluvial aquifer east of Lake Texoma in southeastern Oklahoma. Although the SWB model active area extends into parts of Texas and Arkansas, the SWB model was used to estimate recharge to the Red River alluvial aquifer between...
Estimation of hydraulic properties in the Ogallala aquifer near Happy, Texas, from slug test results collected in January 2025 at the North East 2nd Street Superfund site Estimation of hydraulic properties in the Ogallala aquifer near Happy, Texas, from slug test results collected in January 2025 at the North East 2nd Street Superfund site
The North East 2nd Street Superfund site in Happy, Texas, overlies a groundwater plume of primarily carbon tetrachloride (CT) that is contained within an upper transmissive zone of the High Plains aquifer system (hereinafter referred to as the "Ogallala aquifer"). The Ogallala aquifer is contained in Tertiary-age sediments of the Ogallala Formation in the study area, which are described...