1. Exams back, key posted Bonuses
Today: What happens near the carrying capacity?

2. Ecological Interconnections

3. Fig 52.7
Carrying Capacity
stationary phase
exponential growth

4. …Availability of resources.
Space

5. Availability of resources and removal of waste limits carrying capacity
Fig 54.1

6. Energy is lost in each consumer
Fig 54.7
Energy is lost in each consumer
1000

7. Fig 54.14
Carbon cycle

8. CO2 levels in Hawaii and average global temp.
Fig 54.15
CO2 levels in Hawaii and average global temp.

9. Nitrogen cycle
80% in air
Fig 54.16

10. Nitrogen as part of amino acids
Fig 3.2
Nitrogen as part of amino acids N N N

11. Nitrogen cycle
80% in air
Fig 54.16

12. Ecosystems on Earth: resources are not evenly distributed
Fig 50.9
Ecosystems on Earth: resources are not evenly distributed

13. Ecosystems on Earth: resources are not evenly distributed
Fig 54.2
Ecosystems on Earth: resources are not evenly distributed

14. Number of bird species:
Areas of higher and lower biodiversity reflect available resources

16. Unfortunately there is lots of bad news...
FEWER THAN 100 REMAIN
EXTINCT
FEWER THAN 100 REMAIN

17. Unfortunately there is lots of bad news... and it is your fault.

18. Rainforest clear cutting
CB 55.15

19. Dead zone in Gulf of Mexico from Mississippi River
Human impacts:
Dead zone in Gulf of Mexico from Mississippi River

20. How important is competition for resources?
Wangari Maathai - Resources and Conflict

21. What happens as populations approach their carrying capacity?
Fig 52.7

22. What happens as populations approach their carrying capacity?
Fig 52.7

23. What happens as populations approach their carrying capacity?
Fig 52.7

24. What happens as populations approach their carrying capacity?

25. 36.4 9 2.3 Fig 52.17 UN Department of Economic and Social Affairs
Population Division (2004)

26. 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)