Population Dynamics

1
Population Dynamics

• And
• Evidence for Evolution

2

• Population a group of organisms of the same
  species living in the same area at the same time
• Ways population size can change
• Natality
• Mortality
• Immigration
• Emigration
• Pop Change (NI) (M E)

3
Explain the reasons for the 3 parts of a sigmoid
growth curve
4
Population Growth Curves

• Exponential vs. Logistic (Exponential) Growth

5

• Examples of logistically
• growing populations
• Just about all living things since all
  experience abiotic and biotic limiting factors

• Examples of exponentially growing populations
• Bacteria
• Isolated instances of animals when only predators
  were removed or none present to start
• Homo sapiens

6
List 3 factors that limit population size