1. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter 36 Population Ecology

2. Ecology Studies Where and How Organisms Live in the Biosphere

4. Figure 36.1 Ecological levels

5. Populations Are Not Static— They Change Over Time

7. Figure 36.2A Distribution patterns of the creosote bush

8. Figure 36.2B Nesting colony of Cape gannets off the coast of New Zealand

10. Figure 36.3 Biotic potential varies

12. Figure 36.4A A life table for Dall sheep

15. Figure 36.5 Age structure diagrams

17. Figure 36.6A Exponential growth

18. Figure 36.6B Logistic growth

20. Environmental Interactions Influence Population Size

22. Figure 36.7A Percentage that die per density of population

23. Figure 36.7B Density-independent effect of a flood

24. Figure 36.7B Density-independent effect of a flood (Cont.)

26. Figure 36.8A Density-dependent effects: competition

27. Figure 36.8B Density-dependent effects: predation

28. The Life History Pattern Can Predict Extinction

30. Figure 36.9A Dandelions are an opportunistic species

31. Figure 36.9B Mountain gorillas are an equilibrium species

33. Figure 36.10 Highlighted factors indicate vulnerability to extinction for an equilibrium species

34. Human Populations Vary Between Overpopulation and Overconsumption

36. Figure 36.11 World population growth over time

37. Figure 36.11 World population growth over time (Cont.)

39. Figure 36.12 Age structures in more-developed and less-developed countries