Homepage for biological characterization activities with links to: Gap Analysis Program, Vegetation Mapping Programs, Land Use History of North America, and Integrated Taxonomic Information System.
The Electronic Natural History Museum Project is a collaborative effort among government agencies, natural history collections and museums, and universities for providing access to data on specimens in natural history museum collections.
Report on the population of northern pintails between 1979 and the 1990s in Sacramento Valley, California, including methods of study including radio telemetry, causes of mortality, morphometrics, survival rates, and management implications.
U.S. Department of the Interior |
U.S. Geological Survey