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Population Growth and Natural Resources - class-XI
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The logistic population growth model, dN/dt = rN (K N/K), describes a populations growth when an upper growth is assumed. This upper limit to growth is known as the population's______ ,and as N gets larger,dN/dt___________
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A
Carrying capacity, decreases
💡 Explanation:
- The logistic population growth model is represented by :
dN/dt = rN (K-N/ K)
Where, N = Population density at time t
r = Intrinsic rate of natural increase
K = Carrying capacity
- In nature, a given habitat has enough resources to support a maximum possible number, beyond which no further growth is possible. This limit is known as nature’s carrying capacity (K) for that species in that habitat.
- As the value of N increases, the rate of growth dN/dt decreases.