What happens to the size of a population when it overshoots its carrying capacity? In the logistic population growth model, the per capita rate of population increase approaches zero as the population size (M) approaches the carrying capacity (K), as shown in the table Logistic Growth of a Hypothetical Population (K = 1,500) Popu- lation Size (N) Maximum Rate of Increase ($r_{max}$) $\frac{K - N}{K}$ Per Capita Rate of Increase $\frac{(K - N)}{K}$ Population Growth Rate* $r_{max} N \frac{(K - N)}{K}$ 25 1.0 0.98 0.98 +25 100 1.0 0.93 0.93 +93 250 1.0 0.83 0.83 +208
Added by Rosario B.
Close
Step 1
This is because the resources available are not enough to sustain the population, leading to a decline in the population size. Show more…
Show all steps
Your feedback will help us improve your experience
Mystique Till and 61 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
In the logistic growth model, when a population approaches carrying capacity, what happens to the population growth rate? There is no impact on the growth rate. The growth rate is cut in half. The growth rate doubles. The growth rate slows to zero.
Mystique T.
At first, growth rate approximates r and the number of individuals increases rapidly. As the population size N approaches the carrying capacity K, growth rate slows because of crowding and competition for resources. Carrying capacity of environment (K). Fraction of carrying capacity available for further growth. (K-N)/K = 0. (K-N)/K = 0.5. (K-N)/K = 1. Time. Population size (N). Consider a population undergoing logistic growth. When are the most individuals added to the population per unit time? (K-N)/K = 0.75. (K-N)/K = 1. (K-N)/K = 0. (K-N)/K = 0.5.
Josee P.
As population size approaches carrying capacity, which of the following is predicted by the logistic equation? The carrying capacity will increase. The population will increase exponentially. The growth rate will approach zero. The growth rate will not change.
Deniz E.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD