Why do we study population

2. WORKSHOP
ALLAMA IQBAL OPEN UNIVERSITY
POPULATION

3. DEFINITION
• A population is a summation of all
the organisms of the same group or species,
which live in a particular geographical area,
and have the capability of interbreeding.
• In ecology, the population of a certain species
in a certain area is estimated using the Lincoln
Index.

4. Studying Population
• The study of population is referred to as
demography
• A person who studies population is a
demographer
• The statistics gathered are demographics

5. DEMOGRAPHY
• The statistics such as births, deaths, income,
or the incidence of diseases, which illustrates
the changing structure of human population.
• The study of composition of a particular
human population.

6. POPULATION
• 6th largest population (185.9 million)
• Growth rate: 1.6%
• Birth rate: 31 births/ 1000
• Death rate: 8/ 1000
• Life expectancy: 63.4years 62(M), 64(F)
• Infant Mortality: 61.27deaths/1000 live
births

7. Why do we study population?

8. 1. Where people live?

9. 2. Are there enough resources
for everyone?

10. 3. Why do more people die in
some nations than others!

11. 4.Where are most babies being
born?

12. POPULATION DENSITY
• The density is the number of people per unit
area (per sq. mile, per sq. km, etc.)
• Population Density =
183 𝑚𝑖𝑙𝑙𝑖𝑜𝑛
796,095 𝑠𝑞. 𝑘𝑚
= 230
• FACTORS affecting population density:
– Physical: Relief, Climate, Soil, Water Supply,
Natural Vegetation, etc.
– Human: Economic, Political, Social

13. CONCLUSIONS
• Is the world even in population distribution
(density)?
• Do all persons live at the same economic
level?
• Do all persons have the same opportunities
as you?
• Are there ways this can change?