1. Chapter 5.2 – Limits to Growth

2. Daily Objectives Identify factors that determine carrying capacity.
Compare the density dependent factors with the density independent factors.

3. Limiting Factors Something that causes population growth to decrease.
Determines the carrying capacity of an environment for a species.

4. Limiting Factors

5. Density-Dependent Factors
Limiting factor that depends on population size.

6. Density-Dependent Factors
Competition – organisms compete for food, water, space, sunlight, and other things

7. Density-Dependent Factors
2. Predation
Predator-prey relationship – the regulation of a population by predation

8. Density-Dependent Factors
2. Predation

9. Density-Dependent Factors
3. Parasitism and Disease
Parasites – Organisms that live on or in another organism and harm them.

10. Density-Independent Factors
Factors that affect all populations regardless of size.
1. Weather
2. Natural disaster
3. Seasons
4. Human activities