1. Population Ecology
53.6

2. Age Structure Diagrams
Relative number of individuals of each age in a population
Allows population ecologists to determine if a population is growing, stable or declining
Look at these diagrams… how can you tell if the population is expanding, stable or declining?

3. Human Population History

4. Human Population Density

5. Planet Earth’s Carrying Capacity
~10 billion people (reached by 2050)
Why can we keep pushing the limits of Earth’s carrying capacity?

6. What will be our limiting factor?
Clean water
Nutritious food
Livable space