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Detection of Apis mellifera DNA in spiked flowers under laboratory and natural conditions, Chesterton Indiana, 2023-2024 Detection of Apis mellifera DNA in spiked flowers under laboratory and natural conditions, Chesterton Indiana, 2023-2024
The data being released were part of a project funded by the Section 40804 Ecosystem Restoration of the Bipartisan Infrastructure Law (PL-117-58) in support of advancing a national revegetation effort. Data included are from a series of DNA degradation experiments targeting the mitochondrial 16S rRNA gene of the European honeybee (Apis mellifera). This study sought to determine how...
Video observations of Common Terns usurping and brooding Least Tern chicks Video observations of Common Terns usurping and brooding Least Tern chicks
These videos show a pair of common terns usurping a least tern nest with chicks. These data support a paired USGS authored manuscript.
Per- and Polyfluoroalkyl Substances in tree swallow gut contents Per- and Polyfluoroalkyl Substances in tree swallow gut contents
This data set is from a study examining the flow of per- and polyfluoroalkyl substances (PFAS) through food webs. The data are PFAS concentrations in gastrointestinal contents of tree swallows.
Ordinal-occurrence states of American pikas in the northern Sierra Nevada and southern Cascade Range from surveys during 2014-2019 Ordinal-occurrence states of American pikas in the northern Sierra Nevada and southern Cascade Range from surveys during 2014-2019
USGS researchers and technicians comprehensively surveyed each of 150 talus patches for evidence of American pika (Ochotona princeps) occurrence. Occurrence status at each patch was classified as either no pika evidence whatsoever, former pika occurrence, or current pika occurrence. Dataset also includes latitude and longitude, as well as mean elevation of the patch and the surveyor...
Surface Water-Quality Data and Nutrient Loads in Selected Rivers and Wastewater Treatment Facilities in the Connecticut River and Taunton River Study Areas in Massachusetts, 2019-2021 Surface Water-Quality Data and Nutrient Loads in Selected Rivers and Wastewater Treatment Facilities in the Connecticut River and Taunton River Study Areas in Massachusetts, 2019-2021
This U.S. Geological Survey (USGS) data release includes necessary information and data to support the analysis and interpretations of nutrient loading and sources of nitrogen in the associated companion USGS Scientific Investigations Report. This data release includes (1) summary statistics for discrete water-quality data collected at eight water-quality-monitoring stations in the...
Cladophora biomass and supporting data collected in the Great Lakes, 2023 (ver. 2.0, April 2025) Cladophora biomass and supporting data collected in the Great Lakes, 2023 (ver. 2.0, April 2025)
This dataset records Cladophora and associated benthic algae, collectively the Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2023 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting...