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Invasive species eradication: How do we declare success?

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Determining invasive species eradication success is challenging. This study reviews methods to quantify errors in declaring eradication, improving decision-making for conservation programs.

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Area of Science:

  • Ecology
  • Conservation Biology
  • Environmental Management

Background:

  • Assessing invasive species eradication success is a critical challenge for management programs.
  • Current methods for declaring eradication often rely on inefficient, ad hoc rules.
  • Imperfect surveillance introduces risks of false declarations (Type I errors) or wasted resources (Type II errors).

Purpose of the Study:

  • To review methods for quantifying errors in eradication success declarations.
  • To incorporate risk assessment into the decision-making process for ending eradication programs.
  • To identify future developments for improving the determination of eradication success.

Main Methods:

  • Review of statistical and decision-making frameworks for eradication programs.
  • Analysis of Type I and Type II error quantification in surveillance.
  • Examination of methods for incorporating risk into program termination decisions.

Main Results:

  • Various methods exist for quantifying the risks of false eradication declarations.
  • These methods can inform more efficient and reliable decision-making processes.
  • Current practices may be improved by adopting statistically grounded approaches.

Conclusions:

  • Robust methods are available for assessing invasive species eradication success.
  • Integrating risk assessment improves the efficiency and reliability of program termination.
  • Future research should focus on refining these methods for practical application.