Hawaiian Ecosystems at Risk; Charles Darwin Foundation; Galapagos National Park; Ecuadorian Agricultural Health Service in Galapagos; Galapagos National Institute.
Michigan's Invasive Species Program.
New York Invasive Species Clearinghouse.
University of New Hampshire. Cooperative Extension; New Hampshire Department of Agriculture, Markets & Food.
Pan American Health Organization; Regional Office for The Americas of the World Health Organization.