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Ecosystem Food Web Lab

Grass → rabbits & deer → foxes & wolves → vultures & decomposers. Every animal eats, breeds and dies on its own; the curves below are what that adds up to.

Scenario

Population dynamics

Lotka–Volterra LV + grass limit K Logistic (rabbits alone)

Collecting data for the model fit (needs ~6 simulated months).

Experiments

Drought0%

Hunting pressure0%

Hunters target

Seasonal swing35%

Migration50%

Remove a species (and keep it out) or introduce more

Tip: tap the meadow with a species tool to place animals exactly where you want them.

Energy pyramid & the 10% rule

What-if history

Species cards

View & quality

Time of day11:00

Quality

Animals are drawn about 2x larger than life and the meadow is a 160 m square so you can watch the action. Low quality uses fewer detailed animals, 1 grass tuft per cell and smaller shadows.

The science