In logistic growth, how does population growth change as it nears carrying capacity?

In logistic growth, how does population growth change as it nears carrying capacity?

• A. Population growth remains steady
• B. Population growth decreases
• C. Population growth increases
• D. Population growth typically crashes

Answer: (B)

In logistic growth, as a population approaches its carrying capacity, the growth rate of the population begins to decline. Carrying capacity refers to the maximum number of individuals that an environment can sustainably support. When a population is small and resources are abundant, the growth is typically exponential. However, as the population grows and resources become limited, competition for these resources increases, leading to a decrease in the growth rate. This decrease occurs because fewer resources are available per individual, which can result in lower reproductive rates, increased mortality rates, or both. Eventually, the population stabilizes around the carrying capacity, where the birth rate equals the death rate, leading to minimal net growth. Thus, the statement that population growth decreases as it nears carrying capacity accurately reflects how logistic growth models depict population dynamics.

In logistic growth, as a population approaches its carrying capacity, the growth rate of the population begins to decline. Carrying capacity refers to the maximum number of individuals that an environment can sustainably support. When a population is small and resources are abundant, the growth is typically exponential. However, as the population grows and resources become limited, competition for these resources increases, leading to a decrease in the growth rate.

This decrease occurs because fewer resources are available per individual, which can result in lower reproductive rates, increased mortality rates, or both. Eventually, the population stabilizes around the carrying capacity, where the birth rate equals the death rate, leading to minimal net growth. Thus, the statement that population growth decreases as it nears carrying capacity accurately reflects how logistic growth models depict population dynamics.