Endangered Ecosystems: A Status Report on America's Vanishing Habitat and Wildlife |
Contents
Section TwoGeographic Patterns of Risk to U S Ecosystems | 1945 |
Section Three | 1950 |
Section Four Recommendations | 1958 |
Copyright | |
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Common terms and phrases
90 percent agriculture barrens Biodiversity Biological Diversity California Candidate Species change in population coastal sage scrub Conservation Biology decline degraded developed land E.T. LaRoe eastern ecological ecosys Ecosystem Risk Index Ecosystems of Florida endangered ecosystems Endangered Species Act endemic Environmental Everglades exotic extinction federally listed Fish and Wildlife grasslands grazing habitat Hawaii Heritage Program Idaho Imperiled Plants imperiled species Imperiled Vertebrates increase in developed Iowa Island J.J. Ewel J.M. Scott karst Kautz Listed Species longleaf pine longleaf pine forests loss of wetlands marsh Moderate most-endangered ecosystems mussels National native grassland Natural Heritage Natural Resources Nature Conservancy North Noss Number of Candidate Number of Imperiled Number of Listed old-growth Oregon Percent change Percent increase pine rocklands plant communities ponderosa pine population density Risk to Ecosystems River savannas score Shrubland south Florida Species Risk Index square mile swamp tallgrass prairie threat threatened U.S. Fish Washington Wildlife Service