Population models — side-by-side simulations

Choose a model, climate speed c, and environmental gradient b independently for simulations A and B. Defaults are c = 0.2 and b = 1. The global parameters r_max and k apply to all three models. For the sexual model, V_LE is adjustable and enters both the dynamics and the physical phenotype scaling. Population scale K and the random seed appear only for stochastic asexual simulations. The two panels use synchronized snapshots and common display axes. All computations run locally in the browser through Pyodide/WebAssembly.

Simulation A

Model Climate speed c Environmental gradient b μ²

Simulation B

Model Climate speed c Environmental gradient b VLE

Shared simulation settings

Selection variance Vs Spatial dispersal σ Maximum growth r_max Competition scale k Final time Resolution Snapshots

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Exploratory web tool The slider advances both simulations together by snapshot index. The shared V_s and σ controls apply to the asexual models; the restored sexual solver keeps σ = 1 and V_s = 1 internally. The global parameters r_max and k apply to all three models. Computations run locally in your browser; the archived Python programs remain the reproducibility reference.