Database Reference
In-Depth Information
MATURE D1
=
U1 D * NYMPHS D1
{
Individuals per Time Period
}
NYMPHS D2(t)
=
NYMPHS D2(t
−
dt)
+
(BIRTHS D2
−
DEATHS DN2
−
MATURE D2) * dt
INIT NYMPHS D2
=
0
{
Initial diseased eggs
}
INFLOWS:
BIRTHS D2
=
IF (K2
−
ALL ADULTS 2)
>
0THENA2 D * ADULTS D2
ELSE 0
{
Individuals per Time Period
}
OUTFLOWS:
DEATHS DN2
=
B1 D * NYMPHS D2
{
Individuals per Time Period
}
MATURE D2
=
U1 D * NYMPHS D2
{
Individuals per Time Period
}
NYMPHS H1(t)
=
NYMPHS H1(t
−
dt)
+
(BIRTHS H1
−
DEATHS HN1
−
MATURE H1
INFECTION 1) * dt
INIT NYMPHS H1
−
=
0
{
Initial Healthy eggs
}
INFLOWS:
BIRTHS H1
=
IF (K1
−
ALL ADULTS 1)
>
0THENA2 H * ADULTS H1
ELSE 0
{
Individuals per Time Period
}
OUTFLOWS:
DEATHS HN1
=
B1 H * NYMPHS H1
{
Individuals per Time Period
}
MATURE H1
=
U1 H * NYMPHS H1 * (1
−
INFECTION COEF1)
{
Individuals per Time Period
}
INFECTION 1
=
INFECTION COEF1 * MATURE H1
{
Individuals per Time
Period
}
NYMPHS H2(t)
=
NYMPHS H2(t
−
dt)
+
(BIRTHS H2
−
DEATHS HN2
−
MATURE H2
INFECTION 2) * dt
INIT NYMPHS H2
−
=
0
{
Initial Healthy eggs
}
INFLOWS:
BIRTHS H2
=
IF (K2
−
ALL ADULTS 2)
>
0THENA2 H * ADULTS H2
ELSE 0
{
Individuals per Time Period
}
OUTFLOWS:
DEATHS HN2
=
B1 H * NYMPHS H2
{
Individuals per Time Period
}
MATURE H2
=
U1 H * NYMPHS H2 * (1
−
INFECTION COEF2)
{
Individuals per Time Period
}
INFECTION 2
=
INFECTION COEF2 * MATURE H2
{
Individuals per Time
Period
}
A2 D
=
.35
{
Experimental laying rate. DISEASED EGGS PER ADULT PER
DAY.
}
A2 H
=
.75
{
Experimental laying rate. EGGS PER ADULT PER DAY.
}
ALL ADULTS 1
=
ADULTS H1
+
ADULTS D1
ALL ADULTS 2
=
ADULTS H2
+
ADULTS D2
B1 D
=
(1
−
EXP(LOGN(S1 D) * F1 D * DT))/DT
{
Egg mortality rate,
1/DAY. Instantaneous survival fraction
+
instantaneous mortality fraction
=
1.
}
B1 H
=
(1
−
EXP(LOGN(S1 H) * F1 H * DT))/DT
{
Egg mortality rate,
1/DAY. Instantaneous survival fraction
+
instantaneous mortality fraction
=
1.
}
