Data
Filter Total Items: 219
Global gridded dataset of terrestrial biological nitrogen fixation across natural and agricultural biomes Global gridded dataset of terrestrial biological nitrogen fixation across natural and agricultural biomes
This dataset includes global rasters of terrestrial biological nitrogen fixation (BNF) rates (in kg N/ha/y) for each major N-fixing niche in natural biomes (trees, shrubs, herbs, soil, litter, dead wood, ground mosses, biocrusts, and epiphytic lichens) and agricultural biomes (legume crops, forage legumes, and rice). It also includes total natural terrestrial, total agricultural, and...
A global dataset of terrestrial biological nitrogen fixation A global dataset of terrestrial biological nitrogen fixation
This dataset includes field measurements of biological nitrogen fixation (BNF) in all major N-fixing niches across natural terrestrial biomes globally. The dataset comprises 32 variables including site location, biome type, N-fixing niche, sampling year, quantification method, BNF rate (in kg N/ha/y), the percentage of nitrogen derived from the atmosphere, N-fixer or N-fixing substrate...
California condor and black vulture Highly Pathogenic Avian Influenza vaccine trial California condor and black vulture Highly Pathogenic Avian Influenza vaccine trial
In 2023, critically endangered California condors experienced an outbreak of highly pathogenic avian influenza (HPAI). We evaluated safety, immunogenicity, vaccination strategies, and correlates of antibody response of a conditionally licensed influenza vaccine for poultry in black vultures and then California condors. These data represent the correlates of antibody response, including
Comparison of environmental DNA sampling protocols for detection of stream fishes in the Pacific Northwest, 2019 (ver. 2.0, November 2025) Comparison of environmental DNA sampling protocols for detection of stream fishes in the Pacific Northwest, 2019 (ver. 2.0, November 2025)
This dataset contains environmental DNA (eDNA) data (field, extraction, and qPCR) for rainbow trout sampling efforts conducted in the Pacific Northwest in 2019. Samples were collected using three eDNA sampling methods. Also included are qPCR data for extraction negatives, no-template controls (NTC), and standard dilutions of rainbow trout gBlock. NTC and gBlock qPCR data were used to...
Population viability assessment of native fish species in the Pacific Northwest accounting for instream conditions of water temperature and streamflow permanence Population viability assessment of native fish species in the Pacific Northwest accounting for instream conditions of water temperature and streamflow permanence
This data release contains geospatial representations of population viability analysis (PVA) of 23 species of Pacific Northwest non-salmonid fishes. The analysis evaluated long term species persistence (~100 years) based on species distribution models that combined 1) modeled climate, 2) instream conditions, and 3) presence/absence fish data based on species needs and current climate...
Species distribution models and model performance evaluations of twenty-four fishes native to Pacific Northwest US Species distribution models and model performance evaluations of twenty-four fishes native to Pacific Northwest US
This data release provides spatial data for species distribution models developed for 24 stream fishes native to the Pacific Northwest, USA and associated model evaluation metrics used to determine the best supported model. These models support a larger analysis for understanding native stream fish vulnerability in the region, specifically population viability analyses built to determine...
Lower Salinas Valley Hydrologic Models: Input Inflow Data Lower Salinas Valley Hydrologic Models: Input Inflow Data
This dataset provides time series for the ungaged watershed inflows and associated inflow points for the Lower Salinas Valley Hydrologic Models (SVHM), including the Salinas Valley Integrated Hydrologic Model (SVIHM) and the Salinas Valley Operational Model (SVOM). Monthly outflows from watersheds that do not have gages that surround the Salinas River Valley are used in the Lower Salinas...
Effects of Batrachochytrium dendrobatidis and methylmercury on survival of amphibians across the United States Effects of Batrachochytrium dendrobatidis and methylmercury on survival of amphibians across the United States
The U.S. Geological Survey conducted sampling across the United States between 2017 and 2022 to assess the effects of methylmercury bioaccumulation and amphibian chytrid fungus (Batrachochytrium dendrobatidis; Bd) on the survival of amphibian species. This dataset includes detections and non-detections of Bd (obtained from DNA extracted from skin swabs) and whole-body methylmercury...
Juvenile snowy egret (Egretta thula) locations in the Carson and Humboldt River systems, 2002-2004 Juvenile snowy egret (Egretta thula) locations in the Carson and Humboldt River systems, 2002-2004
Data from a Nevada telemetry study extending 1997-2006 research on historical mercury contamination on snowy egrets (Egretta thula) up to ~ 20 days of age.
Ocular field estimates of exotic annual and perennial grass cover across the Soda Wildfire Ocular field estimates of exotic annual and perennial grass cover across the Soda Wildfire
Data includes functional group cover of exotic annual grasses and deep rooted perennial grasses within the first five years after the 2015 Soda wildfire across different post-fire restoration treatments. Additional landscape and restoration treatment covariates hypothesized to influence post-fire invasive annual grass and perennial grass cover are included.
eDNA and visual encounter survey detection of amphibians and chytrid fungus in Colorado canyonlands, 2019-2022 (ver. 1.1, November 2025) eDNA and visual encounter survey detection of amphibians and chytrid fungus in Colorado canyonlands, 2019-2022 (ver. 1.1, November 2025)
This dataset contains environmental DNA (eDNA) and visual encounter survey (VES) data collected between 2019 and 2022 in Colorado canyonlands. eDNA data (field, extraction, and qPCR) is for three target species: American bullfrog, northern leopard frog, and Great Basin spadefoot. VES data is for six target species: American bullfrog, northern leopard frog, Great Basin spadefoot, red...
Thematic response frequency of user feedback on coastal science products Thematic response frequency of user feedback on coastal science products
Decision support tools play a critical role in assisting coastal decision-makers in managing coastal systems; yet there are challenges to developing tools that align with the functional needs of end-users. By combining usability testing and contextual inquiry methods, we put forth a hybrid approach for collecting user feedback within the context of federal government research. This...