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Mark-Recapture Population Survey

Interactive 3D mark-recapture simulator: capture and tag a wandering animal population, take a second sample, and watch the Lincoln-Petersen / Chapman estimator reconstruct the true population size from live capture data.

Ecology & Conservation Biology3DEasy60 FPS📱 Mobile-adapted

Watch a wandering animal population inhabit a 3D field plot, then run the exact two-step protocol field ecologists use to estimate a population that can never be fully counted: capture and tag a first random sample, let the population remix, then capture a second sample and see how many recaptures carry a tag. A live Lincoln-Petersen / Chapman estimator turns those three numbers — marked, sampled, recaptured — into a population estimate you can check against the true (otherwise hidden) population size.

⚙ Under the hood

Capture and tag a wandering 3D animal population, take a second sample, and watch the Lincoln-Petersen / Chapman estimator reconstruct the true population size from live capture data.

ecologypopulation estimationfield methodsstatisticsconservation biology

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install