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Ecological risk assessment conceptual model formulation for nonindigenous species.

Wayne G Landis1

  • 1Institute of Environmental Toxicology, Huxley College of Environmental Studies, Western Washington University, 516 High St., ES518, MS9180, Bellingham, WA 98225-9180, USA. landis@cc.wwu.edu

Risk Analysis : an Official Publication of the Society for Risk Analysis
|September 11, 2004
PubMed
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This study presents a regional ecological risk assessment framework to predict the impacts of invasive or nonindigenous species (NIS). Effective NIS risk assessment must consider both the invader

Area of Science:

  • Ecology
  • Environmental Science
  • Risk Assessment

Background:

  • Invasive or nonindigenous species (NIS) pose significant ecological threats.
  • Ecological risk assessment (ERA) is crucial for predicting and managing these threats.
  • Current ERA methods often lack a regional perspective.

Purpose of the Study:

  • To present a conceptual model for regional ecological risk assessment of NIS.
  • To demonstrate the application of this model using diverse examples.
  • To identify key factors for successful NIS risk assessment at a regional scale.

Main Methods:

  • Described the principles of risk assessment and decision-making processes.
  • Introduced a conceptual model for regional ERA of NIS.

Related Experiment Videos

  • Applied the model to two case studies: plasmid dynamics in bacteria and European green crab invasion.

    • Main Results:

    • The regional ERA approach provides a framework for predicting NIS impacts.
    • Case studies illustrated the model's applicability in different ecological contexts.
    • Risk assessment must integrate characteristics of NIS and regional stressors.

    Conclusions:

    • Regional ERA is essential for understanding and managing NIS.
    • A comprehensive approach requires considering both the invasive species and the affected ecosystem.
    • This framework can guide policy and management decisions for NIS control.