1. Movie night W 4/21 at 5pm in JES A121A
Today: What happens near the carrying capacity? What is biodiversity?

2. Exam averages:
#1 = 78.7
#2 = 73.5
#3 = 67.4

3. Ecological Interconnections

4. Fig 52.7
Carrying Capacity
stationary phase
exponential growth

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

6. What happens as populations approach their carrying capacity?
Fig 53.13

7. What happens as populations approach their carrying capacity?
Fig 53.13

8. What happens as populations approach their carrying capacity?

9. What happens as populations approach their carrying capacity?

10. 36.4 9 2.3 UN Department of Economic and Social Affairs
Population Division (2004)

11. Annual % increase in global population
Fig 53.23

12. 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)

13. Unfortunately there is lots of bad news...
Fig 56.4
Unfortunately there is lots of bad news...
FEWER THAN 100 REMAIN
EXTINCT
FEWER THAN 100 REMAIN

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

15. Rainforest clear cutting
CB 55.15

16. Dead zone in Gulf of Mexico from Mississippi River
Human impacts:
Dead zone in Gulf of Mexico from Mississippi River
Fig 55.18

17. New species and extinction
Fig 25.14
New species and extinction

18. Biodiversity- number of species within an area
Fig 56.3
Genetic Diversity
Biodiversity- number of species within an area
Ecosystem Diversity

19. If a species loses genetic diversity, it can go extinct
Fig 56.11

20. Fig 56.10
Extinction vortex

21. Biodiversity- number of species within an area
Fig 56.3
Genetic Diversity
Biodiversity- number of species within an area
Ecosystem Diversity

22. Biological Resources are not evenly distributed
Fig 55.6
Biological Resources are not evenly distributed

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

24. Biodiversity “hot spots” have plentiful resources and large numbers of species
Fig 56.17

25. Larger areas can support more biodiversity
Fig 54.28
Islands

26. Larger areas can support more biodiversity
Fig 54.26
# bird species

27. Water is critical for biodiversity
Fig 54.25

28. New species can have an affect throughout the ecosystem
Fig 54.16

29. Interactions include area, climate, competition...

30. Movie night W 4/21 at 5pm in JES A121A
Today: What happens near the carrying capacity? What is biodiversity?