ECOSYSTEM SIMULATOR
Explore how predator and prey populations shape each other
Change reproduction, mortality, habitat capacity and encounter rates to investigate population cycles in a simplified ecological model. Step through time or play automatically. Apply hypothetical drought, disease and conservation interventions, save a reference scenario, and compare population curves. Download CSV records, vector SVG charts, PNG plots and editable JSON projects. All computation runs on your device.
How does the predator–prey model work?
Prey grow logistically toward a carrying capacity that changes with the seasons. Predators reduce prey through encounters and gain reproductive benefit from consumption; predators also experience natural mortality. The simulation uses a fixed-step fourth-order Runge–Kutta solver. Numerical populations represent continuous model units and are not individual tracked animals.
Limitations and privacy
The model omits age structure, dispersal, stochastic weather, spatial migration, disease networks and many real food-web interactions. Outcomes are suitable for learning and hypothesis exploration, not environmental management decisions. Projects can be saved locally as JSON. Browser autosave uses version-checked IndexedDB and is best-effort; use Save project to preserve important results. Maximum simulated timeline: 3,650 days.
