The survey probability of detection of NIS at a site, or all sites, over time, assuming an exponential NIS risk distribution, calculated across 10,000 simulations, for a linear (panels A and B) and threshold detection dynamic (panels C and D) between NIS abundance and method detection probability for one (left hand panels) and ten seed sites (right hand panels).

 
 
  Part of: Gibson TI, Millard RS, MacMillan I, Taylor N, Thrush M, Tidbury H (2025) Application of a theoretical simulator to the optimisation of risk-based invasive species surveillance. NeoBiota 97: 19-46. https://doi.org/10.3897/neobiota.97.121188