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A comprehensive, online information system that facilitates access to and exchange of invasive species data and resources by researchers, scientists, and concerned citizens. USA only.
APHIS Raleigh Plant Protection Center. Site has information on noxious weeds, non-indigenous arthropods that have been introduced into North America, and other invasive species regulated by the U.S. Animal and Plant Health Inspection Service (APHIS).
Congressional Research Service Issue Brief made available by The Committee For The National Institute For The Environment which deals with whose responsibility it is to ensure the economic and ecological integrity of the nation in response to multi-billion dollar threats posed by harmful nonnative species.