An invasive species is defined as a species that is non-native to the ecosystem under consideration and whose introduction causes or is likely to cause economic or environmental harm or harm to human health according to The Forest Service Framework for Invasive Species (USDA Forest Service, 2003). The framework notes that thousands of invasive exotic plants, insects, fish, mollusks, crustaceans, diseases, mammals, birds, reptiles, and amphibians have infested hundreds of millions of acres of lands and waters across the nation, causing massive disruption in ecosystem function, reducing biodiversity, and degrading ecosystem health. Forests, prairies, mountains, wetlands, rivers and oceans have each been infested by these aggressive exotic species.

Files