3. DEMOGRAPHY

4. POPULATION PYRAMIDS
 Pictorial presentation of 3 Factors (Influence Population)
Births
Deaths
Migration

5. Features (Population Pyramids)
In terms of its composition by:-
 Age, Sex
 Males (on Left side)
 Females (on Right side)
 Children (at bottom)
 Elders (at Top)
 Adjoining bars
(contribution of each age, Sex group)

6. EXAMPLE
Developing Country Developed Countries
(Pakistan) (Sweden)
Base: Broad (High Birth rate) Base: Narrow (Low Birth rate)
Top: Narrow / Acute apex Middle: Bulge (Convex border)
(No: of Elders (Less) Top: Obtuse apex
(More Elders)
High Dependency rate Low Dependency rate
Bad effect (on Economy) Good effect (on Economy)
Unproductive (Half Pop) Productive ( More than Half Pop)
Under 15 Ys: ---- 44% Pop: Under 15 Ys: ---- 25% Pop:
B/w 15- 64 Ys: 52% Pop: Above 15 Ys: ---- 75% Pop:

7. PAKISTAN SWEDEN

8. WORLD POPULATION

9. PAKISTAN

11. DEMOGRAPHIC CHARACTERISTICS
Population unevenly distributed with
very densely populated areas very sparsely populated areas.
 All countries in region have a positive rate of
natural population change.

12. DEMOGRAPHIC TRANSITION
Growth Rate (%) Grading of population increase
0 ( Zero) Stationary Growth (No Growth)
0 to 0.5 Slow Growth
0.5 to 1 Moderate Growth
1 to 1.5 Rapid Growth
1.5 to 2.0 Very Rapid Growth
>2 Explosive Growth ( Population
explosion) OR Population Bomb

13. DEMOGRAPHIC TRANSITION
3 TYPES
1. Old balance
Fertility Mortality
2. New balance
Fertility Mortality
3. Imbalance
Fertility Mortality

14. DEMOGRAPHIC CYCLE
Germany,
India in
Hungary
1920
Many
countries of India, China,
S. Asia & Singapur
Africa Pak in 1970