42.2 Spruce Budworm Model Equations
B(t) ¼ B(t À dt) + (ΔB) * dt
INIT B ¼ 3 {Spruce Budworm per Unit Area}
INFLOWS:
ΔB ¼ GR * B * (1ÀB/K/S) À C * B^2/((K1 * S)^2 + B^2) {Spruce Budworm per Unit
Area per Time Period}
Fig. 42.7
Fig. 42.8
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42 Spruce Budworm Dynamics