1. Geography Population Notes
1.00_ECOLOGY_BIO 1 INTRO
Population
Slides 212
Geography Population Notes
Slides 6-23

2. Geography Population Notes
Topic: Population

3. Thoughts on the video
What does he predict will happen to future population growth?
Why does he think this will happen?
What can be done to change this?
Why is the highest population growth in the poorest countries?
What impacts does having a larger population have on the world?

4. Population distribution and density
Population distribution is how people are spread across any given area.
There are many factors that affect population distribution such as physical and human factors such as climate, access to jobs, good natural resources and flat low lying land.

6. Population Density
Population density is the number of people per square kilometre (km²). Examples
Europe 51 people per km²
Australia 2 people per km²
Singapore 7,148 people per km²

7. High Population Density
Website about Japan-

8. Low Population Density

9. Note!
Be able to locate countries on a map which have a high and low population density
Be able to explain why these areas have a low or high population density
Be able to discuss the problems of low and high population density

10. Important Population Definitions
Birth rate- The average number of births per 1,000 people
Death rate- The average number of deaths per 1,000 people
Life expectancy- The average age you are expected to live in the country you were born in
Infant mortality- Is the average number of children per 1,000 born alive but die before the age of one.
Natural Increase- When the birth rate is more than the death rate
Natural decrease- When the death rate is more than the birth rate
Optimal population- When there is a good population level for the natural resources and land of an area

11. Important definitions
Dependents are those who rely upon others of working age, e.g. children and old people
Economically active are those people who work to receive money, normally people who pay taxes and are between 18-70

12. Census
Demographic information about a country is collected normally every 5 or10 years by using a census.
A census is a national record that collects information about everyone in the country during the time of the census. Examples of information collected are; age, gender, education, illnesses and commuter habits.

13. Key point about population
How to calculate the natural population growth rate of a country.
Subtract the death rate from the birth rate and this will give you the population growth rate per 1,000.
E.g. Malta
Birth rate= 10.3
Death rate= 8.3
Therefore population growth is 2.0 per 1000 people.

14. Demographic Transition Model
Now we will examine the key stages of the Demographic Transition Model (DTM)

15. Demographic Transition Model (DTM)
This shows how changes in birth and death rates can affect population growth
These four/five stages are linked to economic growth which means normally you can determine the population of a country depending on the economic growth of that country.

16. Important things to consider
What does the DTM not take into account?
Migration
Immigration- People moving INTO a country
Emigration- People moving OUT of a country
Time
LEDC’s are developing faster so the time period between each stage may be shorter

17. Important!
Remember if you are talking about a country be able to say what stage of the DTM it is in.

18. Test What stage of the DTM are the following countries in and why? UAE
USA
Kenya
Brazil
Japan

19. Census
Demographic information about a country is collected normally every 5 or10 years by using a census.
A census is a national record that collects information about everyone in the country during the time of the census. Examples of information collected are; age, gender, education, illnesses and commuter habits.

20. Important definitions
Life Expectancy is the average number of years a person can expect to live
Infant mortality is the average number of children per 1,000 born alive, who die before the age of one year
Dependents are those who rely upon others of working age
Economically active are those people who work to receive money