G2: Populations Flashcards
What is the demographic equation?
Birth rates + Immigration - Death rates - Outmigration = Population change
What is demography?
Demography is the study of population’s vital statistics
What is our model of population change called?
The demographic transition model
Give an example of a birth rate and death rate at stage 2 of the DTM
Birth rate: Niger (48)
Death rate: Niger (14)
Give an example of a birth rate and death rate at stage 3 of the DTM
Birth rate: Mexico (19)
Death rate Mexico (5)
Give an example of a birth rate and death rate at stage 4 of the DTM
Birth rate: UK (13)
Death rate: UK (9)
Give an example of a birth rate and death rate at stage 5 of the DTM
Birth rate: Germany (8)
Death rate: Germany (10)
Describe and explain the changes to birth/death rates at stage 2 of the DTM.
How does this affect total population?
Very high birth rates, death rates are beginning to fall. This is the result of vaccinations (E.g. TB vaccine) and social policy reforms (E.g. Sewage Systems)
Total population rises rapidly (Natural increase) as more people are being born than are dying
Describe and explain the changes to birth/death rates at stage 3 of the DTM.
How does this affect total population?
Birth rates now start to drop due to: more access to contraception, falling infant mortality rate lowers need for overcompensation, empowerment of women to allow them to work as opposed to having children, etc, Death rates still dropping as health care improves but the drop is at a less substantial rate
Natural increase continues to increase the population but not as much as before
Describe and explain the changes to birth/death rates at stage 1 of the DTM.
How does this affect total population?
High birth and death rates cancel each other out. No vast change in population. No countries still in stage 1.
Describe and explain the changes to birth/death rates at stage 4 of the DTM.
How does this affect total population?
Birth rates plateaux then slowly begin to drop. The baby boomers (1946-1954) have reached pension age and by 2021, 20% of the UK population will be pensioners and pensioners have little to no babies, lowering the birth rate. Infant mortality is low (UK 4.5) so no need to replaced deceased children. Many people want a career and with the average marriage age so high, people have little time to produce children. Finally, contraception such as the pill have added a sense of choice to having children. Death rates continue to decline as health care reaches an elite stage. Machines such as life support machines prolong life
Total population doesn’t change much here. It tends to fluctuate around a set amount
Describe and explain the changes to birth/death rates at stage 5 of the DTM.
How does this affect total population?
Birth rate steadies or falls slightly. Death rates start to increase due to: 1) Medical technology keeps people alive longer so lots of elderly people passing away raises the death rate. 2) Diseases of affluence - drugs, smoking, alcohol, fast food, suicides as developed countries take forgranted their luxuries
Total population hits natural decrease as the death rates rise above birth rates. This decreases the total population
With the DTM, what are the two types of questions they can ask you?
Questions on birth and death rates
Questions on total population
What are the two types of migration?
Forced and voluntary
What is forced migration?
Where one of more people are left with no other option but to move
What is voluntary migration?
When one or more people decide to move to a location out of choice
What is our case study for voluntary migration?
West Africa to Canary Islands
Why do they move? (4 Points)
They live in Sub-Saharan Africa, the lowest income region in the world
They have a lack of resources due to a rising population
If a member leaves to an MEDC, they are regarded as a hero
European trawlers have reduced African fish stocks, meaning they can’t fish
How are they moved?
On boats called Pirogues of death
They are filled with migrants and have little food or water to get more people on the boat
They have the minimum amount of petrol
The journey takes 8-10 days
How are the government responding to illegal immigrants?
Europe has added tighter border security (Frontex)
They assist Spain in repatriation attempts
They give aid money to persuade people to stay in Africa
The number of those arriving at the Canary Islands stood at 2246 (2009) from 9181 (in 2008)
Three economic impacts on the Canary Islands
Undocumented workers don’t contribute to the Spanish economy, instead they send the money back home. 5.5% of Ugandan GDP is from workers in foreign countries.
Cheap labour force enables Spain’s booming construction industry to make record profits
Tourism levels are reduced as people don’t want to go on a beach where malnourished Africans are washing up
Three social impacts on the Canary Islands
Increase in racism as immigrants are willing to take such low paid work, indigenous people aren’t happy as they no longer have work
More homeless people as immigrants can’t always find regular jobs and sleep on the streets
There is a pressure on health care as the Africans arrive in a poor state of health from their disease ridden journeys on the pirogues of death