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Eleven interactive simulations of classic models in spatial ecology and evolutionary game theory, all running locally in your browser — no installation needed. Pick a demo below.
The classic birth-death interacting particle system on a ring of sites.
A birth-death process with density-dependent competition among individuals in continuous space. Choose between Gaussian and top-hat competition kernels and watch clustering vs. regularity emerge.
The mean-field limit of the colicin lattice model: a phase portrait of producer vs. sensitive frequencies. Drag the cost and toxicity sliders to flip between monostable dominance and bistability, and click anywhere to launch a new trajectory.
Producer vs. sensitive cells on a lattice. Producers poison their neighbors — watch clumps of producers take over, or lose, depending on toxicity.
The E. coli C-S-R rock-paper-scissors game. Flip between local (Moore neighborhood) and well-mixed interaction and see biodiversity collapse under global dispersal.
Spatial rock-paper-scissors with selection, reproduction, and mobility (exchange). Cross the critical mobility and watch spiral waves collapse into a single surviving species.
Watch discrete random walkers fan out into a Gaussian, then compare the same walk against a finite-difference solution of the drift-diffusion PDE it converges to.
Beetles moving along a line of patches of varying quality. Compare a quality-aware Markov chain against a passive-diffusion null model and see habitat selection emerge from movement rates alone.
Simulate an animal's movement through habitat, then try to recover its hidden habitat-preference weights from the simulated steps.
A reaction-diffusion-advection model of water and plant biomass on a hillslope. Tune rainfall, advection, and diffusion to grow banded or spotted vegetation patterns, tracked live on a bifurcation diagram.