Chapter 11 - Population Flashcards
Birth rate
The number of births per 1000 people in one year
Demographic transition model
Describes population change over time
Death rate
The number of deaths per 1000 people in one year
Megacity
A city with more than 10 million people
Mortality rates
Is the measure of the number of deaths in a particular population
Population explosion
A rapid growth of the population in the 20th century
Population density
The average number of people living in a square kilometre
Demography
The study of population change and structure
Relief
The shape of the land surface
Natural decrease
When the death rate is greater than the birth rate
Population pyramid
This shows information about the gender and age profile of a
population
Natural increase
When the birth rate is greater than the death rate
Population distribution
Population distribution refers to how people are dispersed around the world or in any given area
Economic development
Sustained, concerted actions of policy makers and communities that promote the standard of living and economic health of a specific area
Urban areas
Town or city
What is world population growth like today?
The world’s population is growing by 1.41% per year (over 200,000 each day!)
When and what was the peak of the world’s population growth?
2.19% per year in 1963
Describe stage 1 of the Demographic Transition Model and give an example
- High fluctuating stage - Ethiopia
►Very poor
►High birth and death rate
►Population may fluctuate or grow very slowly
Describe stage 2 of the Demographic Transition Model and give an example
- Early expanding stage - Mali
►Economy begins to improve
►Better food and medical supplies cause death rate to fall
►But poor people still have large families so birth rate remains high
►Result is rapid population growth
Describe stage 3 of the Demographic Transition Model and give an example
- Late expanding stage - Brazil
►Economy continues to improve and many people begin to plan the size of the family
►As the birth rate falls, the rate of population growth slows
Describe stage 4 of the Demographic Transition Model and give an example
- Low fluctuating stage - Ireland
►Place at stage four is economically developed
►Most live long lives but have few children
►Means both death and birth rates are low
►Population fluctuates and increases only very slowly
Describe stage 5 of the Demographic Transition Model and give an example
- Senile stage - Germany
►People are so concerned with material comforts that the have few children
►Population will decrease as the birth rate becomes smaller that the death rate
How do you calculate population change?
Birth rate - death rate 100
———————- X —-
1000 1
How can food supply increase population?
- With an increased food supply, health will also generally improve, allowing people to live longer.
- Over time, this will also lead to a decrease in death rate
How can food supply decrease population?
- During times such as famine or drought, a population will begin to decline
- People will either stave to death or their health will become poorer and they won’t live as long
How can war increase population?
- People often seek refuge during times of war
- They flee their country and seek refuge in others
- Even though the population of their home country decreases, the other country’s population increases because of the refugees
How can war decrease population?
- Soldiers and civilians die
- Husbands and wives separated leading to reduced birth rate
- Disrupts day-to-day life such as agriculture and health services and may affect populations health and may lead to death
How can technology increase population?
•New agricultural machinery can make growing food more efficient, meaning a country can grow more food, improving the populations health
How can technology decrease population?
- Guns, bombs and missiles can lead to deaths of thousands
* New transport vehicles have led to the deaths of millions worldwide
How can health increase population?
- New developments in medicine lead to people living longer, healthier lives, reducing the death rate
- Fewer people die from easily curable diseases because of new medicine and an improved health service
How can health decrease population?
- Many people in developing world don’t have access to modern medicine and a good public healthcare system
- They are therefore less healthy and may have shorter lives leading to a population decrease in that country
- Unclean drinking water in these countries can also lead to people dying from typhoid and cholera
How can education increase population?
- Couples who are uneducated may not have as good an understanding of family planning
- It is likely they will have large families, increasing population and birth rate
How can education decrease population?
- The more educated a person is, the more likely they are to practice family planning. Family planning reduces birth rates.
- Someone who is educated is more likely to pursue a career, so having a large family would be inconvenient
How can the status of women increase population?
- The lower the status of women in society, the less educated they probably are
- Because of this, they wouldn’t have a good understanding of family planning and therefore may have many children, increasing the birth rate