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Weed Risk Assessment For Aquatic Plants: Modification Of A New Zealand System For The United States, Doria R. Gordon, Crysta A. Gantz, Christopher L. Jerde, W Lindsay Chadderton, Reuben P. Keller, Paul D. Champion
Weed Risk Assessment For Aquatic Plants: Modification Of A New Zealand System For The United States, Doria R. Gordon, Crysta A. Gantz, Christopher L. Jerde, W Lindsay Chadderton, Reuben P. Keller, Paul D. Champion
School of Environmental Sustainability: Faculty Publications and Other Works
We tested the accuracy of an invasive aquatic plant risk assessment system in the United States that we modified from a system originally developed by New Zealand’s Biosecurity Program. The US system is comprised of 38 questions that address biological, historical, and environmental tolerance traits. Values associated with each response are summed to produce a total score for each species that indicates its risk of invasion. To calibrate and test this risk assessment, we identified 39 aquatic plant species that are major invaders in the continental US, 31 species that have naturalized but have no documented impacts (minor invaders), and …