Sky Bristol
Science and Products
Assessing environmental contaminant threats to lands and biota managed by the U.S. Fish and Wildlife Service
The Contaminant Assessment Process (CAP) is a standardized approach for documenting and assessing threats posed by environmental contaminants to lands and biota managed by the Department of the Interior (DOI). The Biomonitoring of Environmental Status and Trends (BEST) Program of the U.S. Geological Survey Biological Resources Division (USGS/BRD)...
Coyle, James; Moore, Craig; Bristol, R. Sky; Henry, Mary G.; Hall, Tim; Kubiak, Tim
Detailed study of selenium and selected constituents in water, bottom sediment, soil, and biota associated with irrigation drainage in the San Juan River area, New Mexico, 1991-95
In response to increasing concern about the quality of irrigation drainage and its potential effects on fish, wildlife, and human health, the U.S. Department of the Interior began the National Irrigation Water Quality Program (NIWQP) to investigate these concerns at irrigation projects sponsored by the Department. The San Juan River in...
Thomas, Carole L.; Wilson, R.M.; Lusk, J.D.; Bristol, R.S.; Shineman, A.R.
Physical, chemical, and biological data for detailed study of irrigation drainage in the San Juan River area, New Mexico, 1993-94, with supplemental data, 1991-95
In response to increasing concern about the quality of irrigation drainage and its potential effects on fish, wildlife, and human health, the U.S. Department of the Interior formed an interbureau task group to prepare a plan for investigating water- quality problems on irrigation projects sponsored by the Department of the Interior. The...
Thomas, C.L.; Lusk, J.D.; Bristol, R.S.; Wilson, R.M.; Shineman, A.R.
Major Update for America’s Inventory of Parks and Other Protected Areas: Protected Areas Database of the United States
A new version of the Protected Areas Database of the U.S., or PAD-US, has major federal, state and easement updates, an easier-to-use data structure, new web services, national-scale printable maps, and more.
Major Update for America’s Inventory of Parks and Other Protected Areas: Protected Areas Database of the United States
A new version of the Protected Areas Database of the U.S. (PAD-US), has major federal, state and easement updates, an easier-to-use data structure, new web services, national-scale printable maps, and more. USGS Technical Announcement
New Species Habitat Distribution Maps Now Support Conservation Planning at a National Scale
A new dataset of habitat distribution for terrestrial vertebrate species in the conterminous United States is now available from the USGS.