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Observed reproductive status and estimated den entrance and emergence data for radio-marked females and estimated birth dates of offspring for four grizzly bear populations in North America, 2011-2021 Observed reproductive status and estimated den entrance and emergence data for radio-marked females and estimated birth dates of offspring for four grizzly bear populations in North America, 2011-2021
This data release contains the observed reproductive status and estimated den entrance and emergence data for 114 radio-marked female grizzly bears and the estimated birth dates of offspring for four populations in North America collected from 2011-2021. The studied populations inhabited the Greater Yellowstone Ecosystem, Northern Continental Divide Ecosystem, Selkirk and Cabinet-Yaak...
Oceanographic and Water-Quality Measurements--Blackwater National Wildlife Refuge, Maryland, 2011 (ver. 1.1, September 2015) Oceanographic and Water-Quality Measurements--Blackwater National Wildlife Refuge, Maryland, 2011 (ver. 1.1, September 2015)
Suspended-sediment transport is a critical element governing the geomorphology of tidal marshes. Marshes rely both on organic material and inorganic sediment deposition to maintain their elevation relative to sea-level. In wetlands near the Blackwater National Wildlife Refuge, MD, portions of the salt marsh have been subsiding relative to sea level since the early 20th century. Other...
Open water control of invasive mussels with benthic mats: comparing mat materials and duration of deployment Open water control of invasive mussels with benthic mats: comparing mat materials and duration of deployment
The data includes 1) results of a preliminary pilot study to evaluate six materials for use as benthic mats in open water control of invasive mussels and 2) a definitive study to evaluate the effects of 10-, 20-, and 30-day treatment with plastic and polyvinyl benthic mats on zebra mussel and native juvenile mussel survival and benthic macroinvertebrate diversity and abundance. The study...
Organic content and carbon dating of soil samples collected from a fen in Big Smoky Valley, Nye County, Nevada Organic content and carbon dating of soil samples collected from a fen in Big Smoky Valley, Nye County, Nevada
This U.S. Geological Survey data release consists of two comma-separated values (CSV) tables containing the results of organic content and radiocarbon dating analyses performed on soil samples collected from a fen in Big Smoky Valley, Nye County, Nevada. Samples were collected from a single soil boring referred to as F1-D on September 11, 2019, using a hand auger. A shapefile of the site...
Organic geochemical and vitrinite reflectance data supporting the thermal and structural reconstruction of an eroded foreland basin: central Appalachian Basin, USA Organic geochemical and vitrinite reflectance data supporting the thermal and structural reconstruction of an eroded foreland basin: central Appalachian Basin, USA
The Appalachian Basin is an archetypal foreland basin system. However, the timing, rates and magnitudes of orogenic loading, fold-thrust belt (FTB) exhumation, and foreland basin burial and exhumation are not well constrained. Here, we present vitrinite reflectance data, alongside organic geochemical screening analysis (programmed pyrolysis and total organic carbon) from a ~350 km...
Organic petrology data supporting a study examining petroleum source rock properties of the Icebox Formation Organic petrology data supporting a study examining petroleum source rock properties of the Icebox Formation
The Ordovician Icebox Formation of the Winnipeg Group has been interpreted as a petroleum source rock within the Williston Basin for over 50 years. Despite limited hydrocarbon production from Winnipeg Group reservoirs and being deeply buried (located below most of the current hydrocarbon producing reservoirs), the petroleum industry continues to periodically drill wells through the...
Organochlorine contaminant concentrations in double-crested cormorant eggs or nestlings in the Green Bay, WI region from 1994 and 1995 Organochlorine contaminant concentrations in double-crested cormorant eggs or nestlings in the Green Bay, WI region from 1994 and 1995
Double-crested cormorant (Phalacrocorax auritus) fresh eggs and sibling embryos at pipping were collected from a polychlorinated biphenyl (PCB)- contaminated colony in Green Bay, Wisconsin, USA. Egg contents were analyzed for organochlorine (OC) contaminants, including 15 aryl hydrocarbon-active PCB congeners. Concentrations of 20 organochlorine contaminants present in double-crested...
Otter Creek pre-restoration orthomosaic and elevation products for the Maumee Area of Concern, Toledo, Ohio, September 2020 Otter Creek pre-restoration orthomosaic and elevation products for the Maumee Area of Concern, Toledo, Ohio, September 2020
The orthomosaic, digital surface model and point cloud presented here document conditions at Otter Creek in Toledo, Ohio in September 2020, prior to planned ecological restoration. The study site is part of the Maumee Area of Concern being restored as part of the Great Lakes Restoration Initiative. Aerial images were collected using a DJI Phantom with FC6310 sensor at an elevation of...
Outputs and code for a mallard migration and energetics model incorporating oil spill effects Outputs and code for a mallard migration and energetics model incorporating oil spill effects
This data release contains a set of data files and scripts related to simulating winter and spring energetics and migration of mallards (Anas platyrhynchos) originating in northern Arkansas, USA as they travel to breeding areas in the Prairie Pothole Region. The simulation results are then re-simulated with the addition of hypothetical oil spills on the wintering ground. Key data files...
Outputs supporting the exploration of zero-inflated integrated species distribution models Outputs supporting the exploration of zero-inflated integrated species distribution models
These data are model outputs demonstrating species abundance estimates derived from a integrated species distribution model
Overflight structure-from-motion digital elevation model and orthophotos of Shishaldin Volcano, Alaska, 2024 Overflight structure-from-motion digital elevation model and orthophotos of Shishaldin Volcano, Alaska, 2024
The Alaska Volcano Observatory conducted overflights of Shishaldin Volcano, Alaska, in July–August 2024 to characterize the morphological changes to the summit area following the 2023 and 2019–2020 eruptions. Oblique airphotos were taken during helicopter overflights on July 30 and August 1. The photos were processed with structure-from-motion (SfM) photogrammetric methods to derive a...
Paired Water Surface Elevation Data in the United States and Canada from the Surface Water Ocean Topography (SWOT) Satellite and In Situ Gage Data from 2023 to 2025 Paired Water Surface Elevation Data in the United States and Canada from the Surface Water Ocean Topography (SWOT) Satellite and In Situ Gage Data from 2023 to 2025
This dataset contains paired in situ and satellite-derived water surface elevation (WSE) observations compiled to evaluate the accuracy of the Surface Water and Ocean Topography (SWOT) mission water surface elevation data over rivers and lakes. In situ WSE measurements were obtained from the U.S. Geological Survey (USGS), U.S. Bureau of Reclamation (BOR), Environment and Climate Change...