1. Today: What happens near the carrying capacity?
What is biodiversity?
Bonuses due W 4/22

2. Ecological Interconnections

3. Fig 52.7
Carrying Capacity
stationary phase
exponential growth

4. Carrying capacity is limited by the availability of resources and removal of waste.
Space

5. fewer consumers than producers
=0.0008%
=50%
=12%

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

7. Fig 54.14
Carbon cycle

8. Nitrogen cycle
80% in air
Fig 54.16

9. Nitrogen as part of amino acids and nucleotides
Fig
Nitrogen as part of amino acids and nucleotides N N N

10. Nitrogen cycle
80% in air
Fig 54.16

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

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

15. Larger areas can support more biodiversity
Fig 53.24b
Islands

16. Larger areas can support more biodiversity
# bird species

17. Water is critical for biodiversity

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

19. New predators can have an affect throughout the ecosystem

20. Areas with increasing plant biodiversity were less affected by drought.
Fig 55.15

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)

27. Why are species going extinct?
Fig
55.6

28. Today: What happens near the carrying capacity?
What is biodiversity?
Bonuses due W 4/22