Search Results for the EPA National Library Catalog

Items Found: 18
Showing: Items 1 - 18
Your Search: (SUBJECT=Biotic communities United States)

Select Item Title Year Published
A Phase I inventory of current EPA efforts to protect ecosystems / 1995
A screening procedure to evaluate air pollution effects on Class I wilderness areas / 1989
An ecological characterization of the Salt River Bay National Historical Park and Ecological Preserve, U.S. Virgin Islands / 2005
An inventory of EPA headquarters ecosystem tools / 1995
Biological survey for the nation 1993
Ecoregions of the conterminous United States / 1986
Ecoregions of the United States / 1976
Ecosystem analysis at the watershed scale : (the revised federal guide for watershed analysis). 1995
Impacts of sediment and nutrients on biota in surface waters of the United States / 1979
Landscape restoration handbook / 1993
National hierarchical framework of ecological units / 1993
Our living resources : a report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems / 1995
Recovery of lotic communities and ecosystems following disturbance : theory and application / 1990
Stressor identification guidance document. 2000
Suspended and dissolved solids effects on freshwater biota : a review / 1977
The field guide to wildlife habitats of the eastern United States / 1989
The Ohio stream regionalization project : a compendium of results / 1988
The Ohio stream regionalization project : a compendium of results / 1987

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