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Question

When does the growth rate of a population following the logistic model equal zero? The logistic model is given as DNdt =rN(1NK)

A
When NK is exactly one
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B
When N nears the carrying capacity of the habitat
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C
When NK equals zero
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D
When death rate is greater than birth rate
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Solution

The correct option is A When NK is exactly one
In logistic growth model population, equation is described is described as DNdt =rN(1NK)
where, N = Population density at time t
r = Intrinsic rate of natural increase
K = carrying capacity
when, NK = 1
Now KNK=0.
So this will be KK NK
1-1=0
Therefore dN/dt = 0

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