Invasive Species: Clearer Focus and Greater Commitment Neeeded to Effectively Manage the Problem

摘要

Harmful invasive species-nonnative plants and animals that are spreading throughout the United States-have caused billions of dollars in damage to natural areas, businesses, and consumers. In 2001, the federal government issued a National Invasive Species Management Plan to focus attention on invasive species and coordinate a national control effort involving the 20 or so federal agencies that are responsible for managing them. This report discusses the economic impacts of invasive species, implementation of the management plan, and coordination of U.S. and Canadian efforts to control