Biology · University
Instantaneous logistic growth · formula reference
This deterministic model assumes constant r and carrying capacity K; it is not a guaranteed population forecast.
Formula
This deterministic model assumes constant r and carrying capacity K; it is not a guaranteed population forecast.
dN/dt = rN(1−N/K)
Worked example
In dN/dt=rN(1−N/K), use r=0.21 per year, N=223, K=320. Find the instantaneous growth rate. Round the final result to 4 decimal places if needed. Answer in individuals/year.
Substitute the current population, not K, into rN and multiply by (1−N/K).
14.1953 individuals/year
Prerequisites and checking
Algebra and the topic definitions. Keep units and rounding consistent. State the model conditions before applying the formula.
Further reading and review references
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