Chapter 3 Population Geography - W.H. Freeman
Chapter 3 Population Geography - W.H. Freeman
Chapter 3 Population Geography - W.H. Freeman
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92 <strong>Chapter</strong> 3 <strong>Population</strong> <strong>Geography</strong><br />
Age in years<br />
80<br />
75<br />
70<br />
65<br />
60<br />
55<br />
50<br />
45<br />
40<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
Males<br />
Females<br />
Projected population<br />
structure in 2020<br />
Deficits due to AIDS<br />
0<br />
140 120 100 80 60 40 20 0 20 40 60 80 100 120 140<br />
<strong>Population</strong> (thousands)<br />
Figure 3.13 Projected population structure<br />
with and without the AIDS epidemic in<br />
Botswana in 2020. (Sources: U.S. Bureau of Census;<br />
Food and Agriculture Organization of the United Nations.)<br />
Gender Ratio<br />
80<br />
180 140 100 60 20<br />
80<br />
60<br />
Sex Ratio<br />
(Males/Females)<br />
40<br />
0.84–0.89<br />
0.90–0.97<br />
20<br />
0.98–0.99<br />
1<br />
1.01–1.02<br />
0<br />
140 120<br />
20<br />
1.03–1.09<br />
1.10–2.20<br />
0 1000 2000 mi.<br />
0 1000 2000 3000 km<br />
Scale at latitude 35°<br />
Flat Polar Quartic<br />
equal area projection<br />
40<br />
Figure 3.14 Females as a percentage of<br />
total population. What explanations can you<br />
come up with for the gender imbalances<br />
shown on this map? (Source: <strong>Population</strong><br />
Reference Bureau.)<br />
100 80 60 40 20