1. Ecology: We are all connected and interdependent

2. Species in a N. Am. forest

3. Ecological Interconnections

4. CB 54.2
Interconnections

5. Predator-Prey interactions
CB 52.21
Predator-Prey interactions

6. CB 52.12
Carrying Capacity
stationary phase
exponential growth

7. Human Population Growth
CB 52.22
Human Population Growth

8. What limits Carrying Capacity?… CB 52.12 stationary phase
exponential growth

9. …Availability of resources.
Space

10. Availability of resources and removal of waste limits carrying capacity
CB 54.2

11. Energy is lost in each consumer
CB 54.11
Energy is lost in each consumer

12. Less consumers than producers
CB 54.13
Less consumers than producers

13. Energy is lost as it is consumed: where does it go?
CB 54.11
Energy is lost as it is consumed: where does it go?

14. only a small percent of energy is stored in organism
CB 54.10
only a small percent of energy is stored in organism

16. …Availability of resources.
Space

17. CB 54.17
Carbon cycle

18. CO2 levels in Hawaii and average global temp.
CB 54.24

19. Nitrogen cycle
80% in air
CB 54.17

20. Nitrogen as part of amino acids
CB 5.16
Nitrogen as part of amino acids N N N

21. Nitrogen cycle
80% in air
CB 54.17

22. Ecosystems on Earth: resources are not evenly distributed
CB 50.19
Ecosystems on Earth: resources are not evenly distributed

23. Number of bird species:
CB 53.23
Number of bird species:
Areas of higher and lower biodiversity reflect available resources

25. Rainforest clear cutting
CB 55.15

26. Human impacts:
Pollution in Gulf of Mexico from Mississippi river

27. Reducing consumption of resources can increase carrying capacity:
CB 54.14
Reducing consumption of resources can increase carrying capacity:
Human impact as consumers

28. Human Population Growth
CB 52.22

29. What happens as populations approach their carrying capacity?
CB 52.13

30. What happens as populations approach their carrying capacity?
CB 52.13

31. What happens as populations approach their carrying capacity?
CB 52.13

32. What happens as populations approach their carrying capacity?
CB 52.13
What happens as populations approach their carrying capacity?

33. 36.4 9 2.3 UN Department of Economic and Social Affairs
Population Division (2004)

34. How much of our society is based on continuing population increases?
36.4 9
2.3
UN Department of Economic and Social Affairs
Population Division (2004)

35. Increased numbers of one species can reduce the population of other species
CB 54.2

36. Biodiversity- number of species within an area
CB 55.2
Genetic Diversity
Biodiversity- number of species within an area
Ecosystem Diversity

37. CB 50.19
Ecosystems on Earth

38. Larger areas can support more biodiversity
CB 53.28
Islands

39. Larger areas can support more biodiversity
CB 53.26
# bird species

40. Water is critical for biodiversity
CB 53.25
Water is critical for biodiversity

41. Removing resources reduces biodiversity
CB 53.15
1/10th
1/100th
Australian tree hole communities (leaf litter supports bugs etc)

42. New predators can have an affect throughout the ecosystem
CB 53.17

43. Ecology: We are all connected and interdependent