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Below is a list of current Data Resources available from NOROCK. If you are in search of specific resources, please email

Filter Total Items: 72

Ken Pierce's Field Notebooks, 1965-2018

Ken Pierce was a Research Geologist with the U.S. Geological Survey for over 55 years and authored numerous scientific papers, geologic maps, and field trip guides. This data release contains digital scans of 44 field notebooks authored by Ken Pierce or his collaborators. Information contained in these notebooks provided much of the underpinning of Ken Pierce's research on the glacial and geomorph

Pronghorn Migration and Resource Selection Near Wind Energy Facilities in Wyoming, 2010-2012 and 2018-2020

USGS scientists evaluated movement and resource selection during seasonal migrations by pronghorn (Antilocapra americana) that were tracked with GPS collars near wind-energy facilities in the Shirley Basin, Wyoming, USA, in 2010-2012 and 2018-2020. Data include values of environmental variables and proximity to wind turbines at used and available locations for analyses of pronghorn selection of ro

Data describing vulnerability of Pacific salmon to invasion of northern pike (Esox lucius) in southcentral Alaska, 2017-2019

The shapefile contains the data necessary to recreate the analyses used in Jalbert et al., in review, Vulnerability of Pacific salmon to invasion of northern pike (Esox lucius) in southcentral Alaska. Specifically, users will be able to view 1) intrinsic potential model calculations for 5 Pacific salmonids (Chinook, chum, pink, sockeye, and coho salmon) and northern pike and 2) all parent nodes of

Predicted consequences of detecting dreissenid mussel eDNA in Jordanelle Reservoir Utah, 2021

U.S. Geological Survey decision analysts and technical experts worked with representatives from the U.S. Bureau of Reclamation, Utah Division of Wildlife Resources, and Central Utah Water Conservancy District to predict the consequences of alternative actions following environmental DNA detections of dreissenid mussel eDNA in Jordanelle Reservor, Utah. This dataset provides the consequence and mod

Bumblebee Surveys in Montana, North Dakota, South Dakota, and Nevada, USA

Bumblebee community surveys used occupancy survey designs primarily across lands managed by the Bureau of Land Management (BLM) and Glacier National Park (GNP). They also include a few surveys in Nevada. These records represent timed surveys that were both successful and unsuccessful in detecting western bumblebees.

Fractional cover estimates of sweet clover derived from UAV, aerial, and Sentinel-2 imagery for central Montana and northwest South Dakota, 2019

Yellow sweet clover (Melilotus officinalis; clover hereafter) is a biennial legume native to Eurasia that is now present in all 50 states. Clover can grow 2 m tall and achieve high densities across large areas in the Northern Great Plains when conditions are conducive, such as in 2019. Clover is highly efficient at fixing nitrogen in soils which reduces the abundance of native grasses, while simul

qpcr amplification data for tissue and water samples collected from glacier national park in 2020 amplified with a lednia tumana specific assay

Tabular amplification data for individual technical replicates of tissue and water samples collected from Glacier National Park in 2020 and amplified with a Lednia tumana species-specific qPCR assay. Reported results include fractional detection rates, mean quantification cycles, and estimated gene copies per reaction.

Neonicotinoid nitroguanidine group insecticide application rates estimated across the western conterminous United States, 2008 to 2014

These data represents annual estimates of neonicotinoid nitroguanidine group insecticide application rates across the western conterminous United States from 2008 to 2014. This product contains seven raster layers (appearing as separate bands in a multi-band raster). Each band represents one year of the data beginning in 2008. Estimates are generated by pairing crop specific application rates of n

Western bumble bee predicted occupancy (1998, 2020) and future projections (2050s), western conterminous United States

These data represent occupancy estimates for western bumble bee across the western conterminous United States. This product contains five raster layers (appearing as separate bands in a multi-band raster). The first two bands represent the predicted occupancy of western bumble bee in 1998 and 2020. We modeled western bumble bee occupancy as a function of climate and land cover. The last three band

Model performance and output variables for phenological events across land cover types in the Northwestern Plains, 1989-2014

Many aspects of recurring plant developmental events – vegetation phenology – are measured by remote sensing. By consistently measuring the timing and magnitude of the growing season, it is possible to study the complex relationships among drivers of the seasonal cycle of vegetation, including legacy conditions. We studied the role of current and legacy climate, and contextual factors

Environmental DNA water sample analyses for smallmouth bass surveillance, Gardner River, Montana, March 2022

Environmental DNA results for March 2022 smallmouth bass surveillance in the Gardner River, Montana

Genetic structure of American black bear populations in the American Southwest and northern Mexico, 1994-2014

Microsatellite genotypes for American black bears collected by Gould et al. 2002 and used to assess the genetic structure of American black bear populations in the American Southwest and northern Mexico. Genotypes are for Ursus americanus individuals.