1. Background Information
Limiting Factors
Background Information

2. What is a Limiting Factor?
Limiting Factors are…
(two similar definitions)
conditions of the environment that limit the growth of a species.
biotic and abiotic factors that prevent the continuous growth of a population.

3. What is a Limiting Factor?
Populations would continue to increase if they had all of the resources they require in unlimited amounts, but there are always factors that limit their increase.
Limiting factors control
population growth.

4. Let’s list some Limiting Factors!

5. What is Carrying Capacity?
Because of these limiting factors, each ecosystem has a finite capacity for growth connected to its carrying capacity.

6. What is Carrying Capacity?
Carrying capacity is the number of individuals of a species that an ecosystem can support.

7. Limiting Factors Facts
In nature, populations of organisms rarely grow uncontrolled. Each ecosystem has a carrying capacity (or number or organisms it can sustain/support).
Remember, limiting factors are biotic and abiotic factors that prevent the continuous growth of a population.
Because of limiting factors, the number of organisms in a population is often well below carrying capacity.

8. TODAY’S AGENDA 1. REVIEWING LIMITING FACTORS AND CARRYING CAPACITY
2. CHAPTER 18 REVIEW (Pg ) Questions 1-28
ALL ANSWERS MUST BE ANSWERED IN A COMPLETE SENTENCE, EXCEPT MULTIPLE CHOICE
If you FINISH, move right on to Ch. 21 REVIEW Pg (Questions 1-22) THIS IS DUE FRIDAY 9/14… USE YOUR TIME WISELY!!!