Question

What does S-shaped pattern of population growth represent ? How is J-shaped pattern different from it and why ?

Answer 1

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S-shaped pattern of growth curve represents that on introduction to a new area, the population grows slowly in the beginning followed by a sharp exponential increase in growth rate. This sharp increase is followed by a stationary growth phase where the population is maintained at an approximately constant level. So, this means that once the population achieves a maximum population, the population becomes stable with growth rate is equal to death rate.

In the J shaped population growth curve, the population grows exponentially and once it attains the maximum value, it decreases abruptly. So, all the individuals of the population die together in this type of growth form. Therefore, population stability is not achieved in this case.

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Answer 2

S-shaped pattern of growth curve represents that on introduction to a new area, the population grows slowly in the beginning followed by a sharp exponential increase in growth rate. This sharp increase is followed by a stationary growth phase where the population is maintained at an approximately constant level. So, this means that once the population achieves a maximum population, the population becomes stable with growth rate is equal to death rate.

In the J shaped population growth curve, the population grows exponentially and once it attains the maximum value, it decreases abruptly. So, all the individuals of the population die together in this type of growth form. Therefore, population stability is not achieved in this case.