Arsenic is a naturally occurring element in rocks, soils, and the waters in contact with them. It is found in ground water as the result of minerals dissolving from weathered rocks and soils. This site links to data, maps, and more.
Information on arsenic in United States ground water largely as a result of minerals dissolving from weathered rocks and soils. Includes links to publications, data, maps, and links to other sites with information on arsenic.
Paper from Land Use History of North America giving results of a study to estimate the extent of developed land in the United States and the impact of development on soil resources.
Site for a USGS project under the U.S. Global Change Research Program for a national assessment of the impacts of climate variability and change on resources with links to impacts in Alaska, western U.S., public lands, and water resources.
Atlas recording spawning and nursery areas of fish in the Great Lakes and associated rivers listed by area and then by species. A 14-volume atlas in PDF format. Published in 1982 by the U.S. Fish and Wildlife Service.
Maps and information about potential spread of avian influenza in migratory birds in Alaska. Includes descriptions and photos of the waterfowl that are being monitored.
News regarding US efforts to monitor the spread of highly pathogenic avian influenza, with links to bulletins, FAQ list, field guides, and other resources.
Brief review of bat research in the San Francisco Bay area and southern California providing land managers with information on the occurrence and status of bat species with links to bat inventories for California and related material.
The bibliography provides citations pertinent to the effects of fire and its prescribed use on the ecosystems and species of Wisconsin and the upper Midwest. Three separate subject indexes are provided: general, species, and geographic location.
U.S. Department of the Interior |
U.S. Geological Survey