environmental or economic consequences in a new range, risk assessment reduces dependence on the fundamental biological information needed in a purely predictive system. Species that are deemed to have a high risk of damage are highlighted even if the understanding of their biology is incomplete. Finally, risk assessments that are carefully documented and transparent in the logic used to assemble their ratings would allow public scrutiny and independent evaluation.
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6 Evaluating Predictive Systems ."
Predicting Invasions of Nonindigenous Plants and Plant Pests . Washington, DC: The National Academies Press,
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