Database Reference
In-Depth Information
1: ALGAE v. HERBIVORE
100.00
50.00
0.00
0.00
400.00
800.00
ALGAE
Fig. 11.7
HERBIVORE-ALGAE MODEL
ALGAE(t)
=
ALGAE(t
dt)
+
(ALGAE GROWTH
CONSUMPTION) * dt
INIT ALGAE
=
210
{
Algae per Area
}
INFLOWS:
ALGAE GROWTH
=
ALGAE * GROWTH RATE
{
Algae per Area per Time
Period
}
OUTFLOWS:
CONSUMPTION
=
HERBIVORE * CONSUMP PER HD
{
Algae per Area
per Time Period
}
HERBIVORE(t)
=
HERBIVORE(t
dt)
+
(HERB GROWTH RATE
DEATH RATE) * dt
INIT HERBIVORE
=
45
{
Individuals
}
INFLOWS:
HERB GROWTH RATE
=
HERBIVORE * FCN HERB GROW
{
Individuals
per Time Period
}
OUTFLOWS:
DEATH RATE
=
HERBIVORE/LIFESPAN
{
Individuals per Time Period
}
ALGAE DELAY
=
DELAY(ALGAE,2)
{
Individuals
}
CONSUMP PER HD
GRAPH(ALGAE)
(0.00, 0.00), (100, 0.25), (200, 0.6), (300, 0.83), (400, 1.06), (500, 1.24), (600,
1.41), (700, 1.61), (800, 1.77), (900, 1.89), (1000, 1.98)
=
 
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