In Example 1 we used Lotka-Volterra equations to model populations of rabbits and wolves. Let’s modify those equations as follows: dR/dt = 0.08R (1 − 0.0002R) − 0.001RW dW/dt= −0.02W + 0.00002RW (a) According to these equations, what happens to the rabbit population in the absence of wolves?(b) Find all the equilibrium solutions and explain their significance.(c) The figure shows the phase trajectory that starts at the point (1000, 40). Describe what eventually happens to the rabbit and wolf populations.
In Example 1 we used Lotka-Volterra equations to model populations of rabbits and wolves. Let’s modify those equations as follows: dR/dt = 0.08R (1 − 0.0002R) − 0.001RW dW/dt= −0.02W + 0.00002RW (a) According to these equations, what happens to the rabbit population in the absence of wolves?(b) Find all the equilibrium solutions and explain their significance.(c) The figure shows the phase trajectory that starts at the point (1000, 40). Describe what eventually happens to the rabbit and wolf populations.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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In Example 1 we used Lotka-Volterra equations to model populations of rabbits and wolves. Let’s modify those equations as follows:
dR/dt = 0.08R (1 − 0.0002R) − 0.001RW
dW/dt= −0.02W + 0.00002RW
(a) According to these equations, what happens to the rabbit population in the absence of wolves?
(b) Find all the equilibrium solutions and explain their significance.
(c) The figure shows the phase trajectory that starts at the point (1000, 40). Describe what eventually happens to the rabbit and wolf populations.
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