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Invasive plant species: Inventory, mapping, and monitoring - A national strategy

January 1, 2002

America is under siege by invasive species of plants and animals, and by diseases. The current environmental, economic, and health-related costs of invasive species could exceed $138 billion per year-more than all other natural disasters combined. Notorious examples include West Nile virus, Dutch elm disease, chestnut blight, and purple loose- strife in the Northeast; kudzu, Brazilian peppertree, water hyacinth, nutria, and fire ants in the Southeast; zebra mussels, leafy spurge, and Asian long-horn beetles in the Midwest; salt cedar, Russian olive, and Africanized bees in the Southwest; yellow star thistle, European wild oats, oak wilt disease, Asian clams, and white pine blister rust in California; cheatgrass, various knapweeds, and thistles in the Great Basin; whirling disease of salmonids in the Northwest; hundreds of invasive species from microbes to mammals in Hawaii; and the brown tree snake in Guam. Thousands of species from other countries are introduced intentionally or accidentally into the United States each year. Based on past experience, 10-15 percent can be expected to establish free-living populations and about 1 percent can be expected to cause significant impacts to ecosystems, native species, economic productivity, and (or) human health.

Publication Year 2002
Title Invasive plant species: Inventory, mapping, and monitoring - A national strategy
Authors J. Larry Ludke, Frank D'Erchia, Jan Coffelt, Leanne Hanson
Publication Type Report
Publication Subtype Federal Government Series
Series Title Information and Technology Report
Series Number 2002-0006
Index ID 53892
Record Source USGS Publications Warehouse
USGS Organization Fort Collins Science Center