Establishment risks for invasive species

Area of Science:

• Ecology
• Population Dynamics
• Invasive Species Management

Background:

• Invasive pest species pose significant ecological and economic threats.
• Predicting the establishment of introduced pests is crucial for effective risk management.
• Current methods often lack a quantitative framework for assessing establishment probability.

Purpose of the Study:

• To present a quantitative methodology for evaluating the probability of invasive pest species establishing persistent populations.
• To integrate ecological data and population modeling for risk assessment.
• To provide a framework for evaluating risk reduction strategies against pest invasions.

Main Methods:

• Utilized a model construct from theoretical population ecology.
• Integrated pest biology, ecology, host interactions, and environmental suitability data.
• Applied the methodology to the Asian longhorned beetle (Anoplophora glabripennis) as a case study.
• Quantified and propagated uncertainties through the population model.

Main Results:

• Developed a quantitative methodology to estimate pest establishment probability.
• Demonstrated the application of the methodology using the Asian longhorned beetle.
• Identified and quantified uncertainties in model parameters affecting establishment risk.
• Presented a risk reduction framework integrating technology and ecological factors.

Conclusions:

• The proposed methodology offers a robust quantitative approach to assess invasive pest establishment risk.
• The framework aids in understanding the impact of reduced pest entry on subsequent establishment.
• Recommendations are provided to enhance the methodology's utility in pest risk management.