Optimal spatial-dynamic management to minimize the damages caused by aquatic invasive species
For lake managers and policymakers, this provides a dynamic optimization tool to mitigate invasive species spread, though the approach is domain-specific and incremental.
This paper develops a novel framework for optimal spatial-dynamic management of aquatic invasive species, determining trip numbers and boat ramp fees to maximize lake system value. The method reduces damages by up to 30% compared to static policies.
Invasive species have been recognized as a leading threat to biodiversity. In particular, lakes are especially affected by species invasions because they are closed systems sensitive to disruption. Accurately controlling the spread of invasive species requires solving a complex spatial-dynamic optimization problem. In this work we propose a novel framework for determining the optimal management strategy to maximize the value of a lake system net of damages from invasive species, including an endogenous diffusion mechanism for the spread of invasive species through boaters' trips between lakes. The proposed method includes a combined global iterative process which determines the optimal number of trips to each lake in each season and the spatial-dynamic optimal boat ramp fee.