Pest Control Dataset Eucyclops Subject to Mechanical Removal

Pest control often causes high mortality, reducing population density but enabling recovery when survivors are freed from intraspecific competition and density dependent demographic rates. Understanding these demographic responses is critical for effective management, especially when life stages differ in the harm they cause. We evaluated mortality-based management of intermediate copepod hosts to control Guinea worm (GW) transmission, combining mathematical models with a population dynamics experiment designed to mimic current pesticide control methods across a range of intensities. Despite initial reductions in density, copepods recovered so rapidly that control appeared to fail, enabled by extremely fast maturation rates in low-density populations. However, model simulations of GW transmission showed that although total and stage-specific densities rebounded, infectious adult copepods —the proximate cause of infections—were strongly suppressed, indicating cryptic success. Ultimately, this study highlights the importance of understanding mechanisms of density dependence when designing and optimizing pest control interventions.