33.2 Immigrating Insects Model Equations
ADULTS_D1(t) ¼ ADULTS_D1(t À dt) + (MATURING_D1 + I_R1 À DEATHS_
DA1) * dt
INIT ADULTS_D1 ¼ .1 {Initial diseased adults.}
INFLOWS:
MATURING_D1 ¼ MNSF_D * NYMPHS_D1/TN1_D {Individuals per Time Period}
I_R1 ¼ INFECTION_1 {Individuals per Time Period}
OUTFLOWS:
DEATHS_DA1 ¼ ADULTS_D1 * (1-MASF_D)/DT {Individuals per Time Period}
ADULTS_D2(t) ¼ ADULTS_D2(t À dt) + (MATURING_D2 + I_R2 À DYING_
DA2) * dt
INIT ADULTS_D2 ¼ .1 {Initial diseased adults.}
INFLOWS:
MATURING_D2 ¼ MNSF_D * NYMPHS_D2/TN1_D {Individuals per Time Period}
I_R2 ¼ INFECTION_2 {Individuals per Time Period}
OUTFLOWS:
DYING_DA2 ¼ ADULTS_D2 * (1 À MASF_D)/DT {Individuals per Time Period}
ADULTS_H1(t) ¼ ADULTS_H1(t À dt) + (MATURE_H1 + INCOMING_1 À
DYING_HA1 À IMMIG_1_TO_2) * dt
INIT ADULTS_H1 ¼ .1 {Initial healthy adults}
INFLOWS:
MATURE_H1 ¼ MNSF_H * NYMPHS_H1/TN1_H * (1ÀINFECTION_COEF1)
INCOMING_1 ¼ ARRIVING_2_TO_1 {Individuals per Time Period}
Fig. 33.5
33.2 Immigrating Insects Model Equations
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