Population Flashcards
What is natural decrease (ND)?
The death rate is greater that the birth rate
What is exponential growth?
A pattern where the growth rate constantly increases, often shown as a J-curve graph
What is birth rate?
The number of babies born per 1000 people per year
What is the death rate?
The number of deaths per 1000 people per year
What is natural change?
The difference between birth rate and death rate, given as a percentage
What is natural increase (NI)?
The birth rate is greater than the death rate
What is life expectancy?
The number of years a person is expected to live, usually taken from birth
What are the characteristics of a country in stage 1 of the demographic transition model?
High birth rate
High death rate
Both fluctuate because of disease, war and famine
Population fairly stable
What are the characteristics of a country in stage 2 of the demographic transition model?
Death rate decreases
Birth rate remains high
Population grows
What are the characteristics of a country in stage 3 of the demographic transition model?
Birth rate drops rapidly
Death rate continues to decrease, but more slowly
Population still grows but not as fast
What are the characteristics of a country in stage 4 of the demographic transition model?
Low birth rate
Low death rate
Birth rate tends to fluctuate depending on the economic situation
What are the characteristics of a country in stage 5 of the demographic transition model?
Birth rate very low and goes below death rate
Death rate has increased slightly because of ageing population
Total population stars to decrease
What is an example of a country in stage 1 of the demographic transition model?
Traditional rainforest tribes
What is an example of a country in stage 2 of the demographic transition model?
Afghanistan
What is an example of a country in stage 3 of the demographic transition model?
Most countries at lesser stages of development, such as Kenya, India, Brazil
What is an example of a country in stage 4 of the demographic transition model?
Most countries at further stages of development, such as USA, France, UK
What is a example of a country in stage 5 of the demographic transition model?
Italy, Germany, countries in Eastern Europe, Japan
What is urbanisation?
The growth in the proportion of people living in towns and cities
What is rural-to-urban migration?
Moving home from a rural area to settle in a town or city
What are major factors that affect population growth?
Agricultural change
Urbanisation
Education
Emancipation and status of women
What is a population pyramid?
A type of bar graph used to show the age and gender structure of a country, city or other area. The base shows the younger section of the population and the apex/top shows the elderly
What does the population pyramid of a stage 1 country look like?
Wide base due to high birth rate
Sides curve in quickly due to infant and child mortality rates
Death rate is high and life expectancy is low so there is a very narrow top and it is the shortest of all the pyramids
What does the population pyramid of a stage 2 country look like?
Similar to stage 1, death rate begins to fall which makes sides less concave, and apex is wider because of higher life expectancy and more elderly
What does the population pyramid of a stage 3 country look like?
Base narrows showing a decrease in birth rate, sides become steeper as more people live to an older age, health improvements allow more people to live longer
What does the population pyramid of a stage 4 country look like?
Pyramid becomes straight side, showing a steady low birth rate, high life expectancy allows most people to live into 60s, 70s, and 80s
What does the population pyramid of a stage 5 country look like?
Pyramid is much larger in middle age generations due to low birth rate, birth rate is low, increasing proportions in very elderly age groups - ageing population
What is age structure?
The proportions of each age group in a population. This links closely to the stage the country has reached in the demographic transition model
What is gender structure?
The balance between males and females in a population. Can tell us a great deal about a country or city
What is infant mortality?
The number of babies that die under a year of age, per 1000 live births
What is child mortality?
The number of children that die under five years of age, per 1000 live births.
What is transmigration?
A population policy that aims to move people from densely populated areas to sparsely populated areas and provide them with opportunities to improve their quality of life (eg Indonesia)
What are the issues with an ageing population?
Demand for health care
Need for social services (eg nursing homes, day care centres and people to care for them)
Pension crisis
These all put a financial pressure on the country
What are the impacts of international migration?
Economic, migrant workers send money back to their country to help their family -> money leaves the host country but greatly benefits the country of origin
Housing, accommodation can be hard to find for migrants in the UK, providing for some migrants over UK citizens can cause resentment between the 2 sets of people
Labour and skills, migration brings in more labour and skills and economies of the EU have benefitted as a result, but some migrants can be exploited
Social, too many migrants can be a burden, schools taking in many immigrant children may be under pressure; teachers often have to work more with children who’s first language is not English. However cultural mixing is often seen as positive as long as racial prejudice doesn’t occur,
What are push-pull factors?
PUSH factors are NEGATIVE aspects of a place they encourage people to move away. PULL factors are the ATTRACTIONS and opportunities of a place that encourage people to move there
What is migration?
The movement of people from one permanent home to another, which the intention of staying at least a year. This move may be within a country (national migration) or between countries (international migration)