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Monthly trematode infections of the snail Cerithidiopsis (Cerithidea) californica at Carpinteria Salt Marsh, California USA, February 2012 to January 2014
Each month (except March 2012), we collected detailed data on the infection status of intertidal snails from ten fixed sites as part of a broader effort to understand food webs in California Estuaries. The study site was Carpinteria Salt Marsh Reserve, California USA, (University of California Natural Reserve System), which comprises 9 Ha tidal channels, 2 Ha salt flats, 17 Ha upland habitat, 6 Ha
Data release for persistence of historical population structure in an endangered species despite near-complete biome conversion in Californias San Joaquin Desert
The recency of large-scale land conversion in Californias San Joaquin Desert raises the probability that the regions numerous endemic species still retain genetic signatures of historical population connectivity. If so, genomic data can serve as a guidance tool for conserving lands that once supported habitat for gene movement. We studied the genetic structuring of the endangered blunt-nosed leopa
Groundwater Watch - Active Water Level Networks
The U.S. Geological Survey has a database/archive of about 850,000 wells across the Nation. The Active Groundwater Level Network contains water levels and well information from more than 20,000 wells that have been measured by the USGS or USGS cooperators at least once within the past 13 months.
Bridge Scour Countermeasure Assessment Data for Select Bridges in the United States
Scouring of streambed material surrounding bridge structures is a leading cause of bridge failure in the United States. Damages resulting from bridge failure oftentimes lead to financial burdens and loss of life. To date, there has been no comprehensive evaluation of the current (2016) effectiveness of the guidance or overall long-term performance of bridge-scour countermeasures provided in the Fe
Groundwater Watch - Below Normal Groundwater Levels (GA/NC/SC)
The U.S. Geological Survey has a database/archive of about 850,000 wells across the Nation. A well with below normal groundwater levels is identified when the most recent water-level measurement is in the 24th percentile or lower in the month of measurement over the period of record for the well.
Carrying capacity in a heterogeneous environment with habitat connectivity
The data are population sizes of yeast Saccharaomyces cerevisiae growth in laboratory cultures over a period of several days with different levels of growth inhibitor cycloheximide.
A Reservoir Morphology Database for the Conterminous United States
The U.S. Geological Survey, in cooperation with the Reservoir Fisheries Habitat Partnership, combined multiple national databases for the purpose of calculating new morphological metrics not included in the original databases for 3,828 reservoirs. These new metrics include, but are not limited to, shoreline development index, index of basin permanence, and development of volume and other descript
A hybrid machine learning model to predict and visualize nitrate concentration throughout the Central Valley aquifer, California, USA
The ascii grids associated with this data release are model inputs representing the Central Valley aquifer, California, and predicted nitrate concentrations (as NO3-N, mg/L) at two depth zones associated with private and public drinking water supply wells, respectively, . The model input and prediction grids are bound by the alluvial bed boundary that defines the Central Valley. The prediction gri
Common lead isotopic measurements in silicate glasses and minerals by laser ablation double-focusing SC-ICPMS (2017)
This dataset is related to a 2017 journal article by A. J. Pietruszka and L. A. Neymark titled "Evaluation of laser ablation double-focusing SC-ICPMS for "common" lead isotopic measurements in silicate glasses and minerals" that is published in the Journal of Analytical Atomic Spectrometry (doi:10.1039/c7ja00005g).
Data Sets and Figures for the Report Entitled, "A Field Study of Selected U.S. Geological Survey Analytical Methods for Measuring Pesticides in Filtered Stream Water, June-September 2012"
The National Water-Quality Assessment (NAWQA) Program and National Stream Quality Accounting Network (NASQAN) are U.S. Geological Survey (USGS) monitoring programs that measure pesticide concentrations in the Nations streams and rivers, herein collectively referred to as streams. The NAWQA Program began monitoring pesticides in 1992 and the NASQAN Program began monitoring pesticides in 1995. The p
WaterQuality Watch - View real-time water-quality data using maps, graphs, and tables.
WaterQuality Watch is a U.S. Geological Survey Web site that displays maps, graphs, and tables describing real-time water-quality conditions for the Georgia, North Carolina, and South Carolina. Water temperature, specific conductance, pH, dissolved oxygen, turbidity, nitrate, and other surrogates are available.
Real time water quality data:
Georgia || North Carolina || South Carolina
United States
Automated Reference Toolset (ART)Data
These environmental raster covariate, geospatial vector data, and tabular data were compiled as input data for the Automated Reference Toolset (ART) algorithm. These data are a subset of all the environmetal raster covariate data used in the ART algorithm. Users are advised to read the mansuscript, associated with these data and identified as the larger work citation. It is recommended that data u