Data and Tools
Biology and Ecosystems Datasets
Mapping, Remote Sensing, and Geospatial Data
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.
Concentration trends for lead and calcium-normalized lead in fish fillets from the Big River, a mining-contaminated stream in southeastern Missouri USA
Lead (Pb) and calcium (Ca) concentrations were measured in fillet samples of longear sunfish (Lepomis megalotis) and suckers (Catostomidae) collected in December 2005 from the Big River, which drains a historical mining area in southeastern Missouri, where a consumption advisory is in effect due to elevated Pb concentrations in fish.
Development of high surface area organosilicate nanoparticulate thin films for use in sampling hydrophobic compounds in sediment-Data
The data set describes the characterization of organosilica thin films for adsorbing the bioavailable fraction of PCBs from sediment collected near Anniston Alabama. We developed novel nanoporous organosilicate (NPO) film as an extraction phase for hydrophobic contaminants and demonstrated its application in water and sediment.
These data support studies from 1997-2006 on potential toxicity of mercury concentrations within the lower Carson River system to piscivorous birds - snowy egrets, black-crowned night-herons, and double-crested cormorants.
Two commonly used human breast luciferase transactivation cell bioassays, the VM7Luc4E2 cell bioassay and the MDA-kb2 cell bioassay were adapted to 384-well formats for HTS of endocrine-active substances. This data demonstrate that by accounting for protein amount in the cell lysates, antagonistic agents can easily be distinguished from cytotoxic agents in the MDA-kb2 and VM7Luc4E2 cell bioassay.
USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010
This data release contains data, repeat images, and field notes collected from 80 repeat photography stakes along Kanab Creek 1872 and 2010. The Kanab Creek repeat photography collection is part of the USGS Southwest Repeat Photography Collection assembled over decades by USGS scientists Drs. Robert H. Webb and Raymond M. Turner and curated by the Southwest Biological Science Center.
The data set is a table of counts, with the rows being the transcripts detected in the samples in the experiment and the columns identifying the samples. Four mussles were exposed to normal freshwater and four mussels were exposed to high salinity (two ppt), for a period of seven days.
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.
Digital map of aquifer boundary for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital data set represents the extent of the High Plains aquifer in the central United States
This digital dataset is available for the Quaternary geology in North and South Dakota
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.
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.
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.