The following problems add in a minimal threshold value for the species to survive, T, which changes the differential equation to P ' ( t ) = r P ( 1 − P K ) − ( 1 − T P ) 189. Draw the directional field of the threshold logistic equation, assuming K = 10. r = 0.1. T = 2. When does the population survive? When does it go extinct?
The following problems add in a minimal threshold value for the species to survive, T, which changes the differential equation to P ' ( t ) = r P ( 1 − P K ) − ( 1 − T P ) 189. Draw the directional field of the threshold logistic equation, assuming K = 10. r = 0.1. T = 2. When does the population survive? When does it go extinct?
The following problems add in a minimal threshold value for the species to survive, T, which changes the differential equation to
P
'
(
t
)
=
r
P
(
1
−
P
K
)
−
(
1
−
T
P
)
189. Draw the directional field of the threshold logistic equation, assuming K = 10. r = 0.1. T = 2. When does the population survive? When does it go extinct?
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