Data and Tools

Science Datasets

The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.

Filter Total Items: 473
Date published: November 3, 2017

Groundwater Sites Evaluated to Assess The Vulnerability of Public Supply Wells To Increasing Arsenic Concentrations In Southeastern Carson Valley, Douglas County, Nevada

This data set provides a spatial and temporal assessment of available chemical and physical data from local, county, state, and federal databases for the Carson Valley, near Minden, Nevada. 

Date published: October 31, 2017

Guide to the Plants of Louisiana

This guide to the vascular plants of Louisiana includes a database of plant characters, a search engine and plant images. Photographs include images of leaves, fruit, flower, stem, bark and other key identification features. Information about plants can be accessed by searching plant lists either by scientific name or common name.

Date published: October 30, 2017

Hydrogen stable isotope data for: 'Mechanisms associated with an advance in the timing of seasonal reproduction in an urban songbird'

This dataset includes stable hydrogen isotope values of the nonexchangeable hydrogen contained in the outer most secondary feathers of dark-eyed juncos (Junco hyemalis thurberi) collected from the University of California San Diego campus in La Jolla, California in 2014.

Date published: October 26, 2017

Associations between cyanobacteria and indices of secondary production in the western basin of Lake Erie

Cyanobacterial blooms may influence secondary production because 1) cyanobacteria are a poor quality food resource and 2) cyanotoxins may be harmful to consumers. Over three years at 36 sites across the western basin of Lake Erie, we measured 3 indices of secondary production: growth of a native unionid mussel, the size of young-of-year dreissenid mussels, and the mass of animals on an HD...

Date published: October 24, 2017

Hawaii Land Cover and Habitat Status

These two raster data layers depict the land cover and degree of human disturbance to plant communities on the seven main Hawaiian Islands, and were developed as part of a comprehensive USGS assessment of carbon sequestration potential by natural ecosystems in the State of Hawaii.

Date published: October 24, 2017

Kanakaleonui Bird Corridor Montane Plants 2016

The datasets used in the the research project entitled, "Facilitating Adaptation in Montane Plants to Changing Precipitation along an Elevation Gradient," are presented. Report available.

Date published: October 24, 2017

Hawaiian Islands Coastal Vegetation Survey 2013-2015

 

This dataset provides information on the current status and various other habitat and descriptive attributes of the native coastal vegetation for seven of the main Hawaiian Islands (i.e., does not include Ni`ihau). Report available.

Date published: October 19, 2017

Experimental recovery rates of tidal marsh vegetation

We measured the response of plants to disturbance across a gradient in inundation times by transplanting tussocks of Schoenoplectus americanus into mesocosms of different elevation in two marsh organ platforms.

Date published: October 19, 2017

Pharmaceuticals in water, fish, and ospreys nesting in Delaware River and Bay

Exposure of wildlife to Active Pharmaceutical Ingredients (APIs) is likely to occur but evidence of hazard and risk is limited. One exposure pathway that has received attention is trophic transfer of APIs in a water-fish-osprey food chain. 

Date published: October 19, 2017

Toxicity Assessment of Sediments Collected Upstream and Downstream of the White Dam in Clarke County, Georgia

A breach in the White Dam has been proposed to facilitate fish passage. As a Technical Assistance project, the U.S. Geological Survey provided toxicity assessments of sediment samples collected by USEPA personnel. 

Date published: October 19, 2017

Anomalous bioaccumulation of lead in the earthworm Eisenoides lonnbergi (Michaelsen)

This data set includes metal concentrations measured in a species of earthworm (Eisenoides lonnbergi) collected at various locations on the Patuxent Wildlife Research Center.

Date published: October 19, 2017

Exposure of Peromyscus leucopus to lead and cadmium in the Southeast Missouri Lead Mining District

The exposure of white-footed mice (Peromyscus leucopus) to lead and cadmium and the potential associated toxic effects were examined at three sites contaminated with lead in the Southeast Missouri Lead Mining District and at a reference site.