Stage 1
High and variable:
high birth and death rates
population growth fluctuates
only tribes are at this stage
Stage 2
Early expanding:
high birth rates, low death rates
population growth is rapid
ex: Afghanistan, Sudan, Libya
Stage 3
Late expanding:
drop in birth rates, low death rate
slow population rate
ex: Brazil, Argentina
Stage 4
Low and variable:
birth and death rates are low
population growth fluctuates
ex: UK, Canada
Stage 5
Low declining:
birth rates are lower than death rates
population declines
ex: Japan
Total fertility rate (TFR)
The average number of birth per woman
Life expectancy
The average number of years that I person is expected to live.
Dependency ratios
Measures the working population and dependent population.
Causes of forced migration
Conflict
Development
Disaster
Pro-natalist policy
Wishes from the government to increase its population size
Anti-natalist policy
Wishes from the government to limit its population size
GNI (Gross national income)
Measure of a country’s total economic output
First world country
Developed country
ex: USA, Netherlands, France
Second world country
Aligned to the Eastern/Soviet bloc
ex: Poland, Hungary, Romania
Third world country
Developing country
ex: Brazil, South Africa, Egypt
Population Distribution
The arrangement or spread of people across a particular area or region.
Population Density
The number of people living per unit of area.
Demography
The scientific study of human population (including size, distribution…)
Overpopulation
A situation where the number of people in an area exceeds the capacity of the environment to support life at a decent standard of living.
ex: India, China, Bangladesh, Egypt, Indonesia
Population pyramid
A graphical representation of the age and sex distribution of a population displayed in a pyramid.
Dependency ratio
Measure of the proportion of the economically dependent population to the economically productive population in a given area.
"The aging population in Japan has resulted in a higher dependency ratio, with a larger proportion of elderly individuals compared to the working-age population, placing a tension on the country's social welfare systems."
Death/Mortality rate
The number of deaths per 1,000 people in a given population within a specific period, typically a year.
ex: Japan, Sweden, Iceland (low)
Chad, Afghanistan, Bolivia (high)
Push factors
Conditions that encourage or force individuals to leave their current location and migrate somewhere else.
Pull factors
Conditions that attract individuals to migrate to a particular location or country.
Voluntary Migration
When individuals choose to move for reasons such as better employment opportunities, education, or quality of life.
Refugees
Individuals forced to leave their country due to persecution, war, or violence and seek refuge in another country.
Internally Displaced Persons (IDPs)
People forced to leave their homes but remain in the same country.
Sustainable Population Growth
Population growth that is maintained without damaging resources and the environment, ensuring a balanced relationship between people and the environment.
ex: Scandinavian countries, Netherlands, Australia
Megacities
Extremely large cities, typically with populations exceeding 10 million people.
ex: São Paulo, Tokyo, Shanghai
Urbanization
The process by which a growing population lives in urban areas (cities) rather than rural areas.
Underpopulation
When the population of an area is too small to utilize the available resources effectively.
ex: Mongolia, Estonia, Greenland
Population distribution
The arrangement of people in a given area, indicating where people live within a region or country.
ex: "China's population distribution is significant in its coastal provinces, particularly in cities like Shanghai and Beijing”