1. Chapter 52 Population Ecology
AP Biology
Chapter 52
Population Ecology

2. Population

3. Human Population on Earth

4. Fig: 52.3

5. LE 52-2
Births
Immigration
Population
size
Emigration
Deaths

6. Table 52.1

7. Fig: 52.5

9. Century Plant

11. Fig: 52.9

12. Elephant population 1900 1920 1940 1960 1980 Year
8,000
6,000
Elephant population
4,000
2,000
1900
1920
1940
1960
1980
Year

13. Hawaii millions of years ago

14. Pioneer species begin to colonize (lichens and mosses)

15. Then over time, grasses begin to grow.

16. Then over time, shrubs will appear and they will be followed by trees.

17. Hawaii today

18. Fig: 52.9

19. Fig: 52.12

20. Fig: 52.13

21. LE 55-9 Small population Genetic Inbreeding drift Lower reproduction
Higher
mortality
Loss of
genetic
variability
Reduction in
individual
fitness and
population
adaptability
Smaller
population

22. Fig: 52.21

23. Snowshoe Hare and Lynx

24. Fig: 52.22 Human Growth on Earth

25. Fig: 52.27

26. Birth or death rate per 1,000 people50 40 30
Birth or death rate per 1,000 people 20 10
Sweden
Mexico
Birth rate
Birth rate
Death rate
Death rate
1750
1800
1850
1900
1950
2000
2050
Year

27. LE 52-25 Rapid growth Afghanistan Slow growth United States Decrease
Italy
Male
Female
Age
Male
Female
Age
Male
Female
85+
80–84
75–79
70–74
65–69
60–64
55–59
50–54
85+
80–84
75–79
70–74
65–69
60–64
55–59
50–54
45–49
40–44
35–39
30–34
25–29
20–24
15–19
10–14
5–9
0–4
45–49
40–44
35–39
30–34
25–29
20–24
15–19
10–14
5–9
0–4 8 6 4 2 2 4 6 8 8 6 4 2 2 4 6 8 8 6 4 2 2 4 6 8
Percent of population
Percent of population
Percent of population

28. Fig: 52.27