Ricker Stock-Recruitment — Page CAS Models

SD ✦ 103

Ricker Recruitment

Discrete map N_t+1 = N_t·exp(r(1 − N_t/K)). At low r the population settles to K; raising r drives period doubling and chaos — the classic route from order to disorder.

r intrinsic rate 2.20

K carrying cap 100

N₀ initial 10

step t0

N(t)—

regime—