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Alaska Off-road Breeding Bird Survey: Database of Bird Distribution

This site links to a database of bird distribution which looks at patterns in the numbers of birds detected among Alaska Off-road Breeding Bird Survey routes. The database can be searched in two different ways: by area, and by species. To find out more about the data contained in the database of bird distribution, take a look at the metadata page, More...

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Progress on the Across Trophic Level System Simulation (ATLSS) Program

This web resource describes the U.S. Geological Survey (USGS) Across Trophic Level System Simulation (ATLSS) Program, which has produced a set of models, including spatially explicit species index models, population demography models, and ecosystem process models that are designed to evaluate the ecological effects of hydrologic scenarios on More...

  • ATLSS High Resolution Multi-Source Topography (HMDT).