1. Populations: Limits

2. What limits population growth?
Carrying Capacity - The largest number of
individuals that the environment can support.
As resources are used up, or the environment
changes, deaths increase, or births decrease
The carrying capacity is reached.
Logistic Growth
The population growth slows or stops as the population reaches the carrying capacity.

3. Limiting Factors can be density dependent or density independent
Limiting Factor – a factor that causes the population growth to decrease.
Limiting Factors can be density dependent or density independent
Density Dependent
Competition
Predation
Parasitism and Disease
Density Independent
Unusual weather
Natural disasters
Seasonal difference
Human activities