LINKS: U.S. Geological Survey Interdisciplinary Research Fact Sheets
Imperiled Species and Communities Threatened by Invasive Species

The impacts of invasive species on our economy and ecosystems are now a fact of life in the United States. Extensive studies have shown that the unchecked invasion of non-native species is causing billions of dollars worth of damage to U.S. agriculture, forestry, and human and wildlife health, as well as threatening the vital functions that natural ecosystems support. A less well known fact is that invasive species threaten one of our most precious natural resources—imperiled species and communities.

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