FA-65450 / Ecological population dynamics / Member archive

Holling functional response consumption: prey depletion cap · case 05

More prey are eaten than exist.

Member previewVariant 5 · 3 implementations · 7 checks per implementation

Case contract

Per-predator intake f: type 1 = a*N capped at 1/h (uncapped when h==0), type 2 = aN/(1+ahN), type 3 = aN^2/(1+ahN^2); eaten = min(f*predators*duration, N); return [f rounded 6, eaten rounded 4]; None for negative parameters or unknown kind.

Why this case matters

Population projections set harvest quotas, conservation status and pest-control timing; a wrong update order, boundary or rate conversion silently changes management advice.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
regression: type 3 prey switching	`[2.95082, 17.7049]`	`[2.95082, 12]`	Failed

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