Population and the Environment Flashcards
(35 cards)
Define Birth rate
- Number of live births per 1000 people per year
Define Death rate
- Number of deaths per 1000 people per year
Define total fertility rate
- The average number of children when she is of reproductive age
Define infant mortality rate
- Number of children who die before their first birthday
Define dependency ratio
Proportion of the population that has to be supported by the working population (aged 15 - 64). Young people and old people are generally dependant on the working population. They need to be looked after or supported financially.
How valid is the DTM?
- Valid:
- Shows how death and birth rate effects overall population structure
- Projects future population change
- Comparable so can be applied to any country
- Invalid:
- Annomalies such as pandemics, natural disasters, climate change, war not taken into account
- No skipping stages and no differences within nations taken into account
What are the two main components of population change?
- Natural change: Birth and Death rate
- Migration change: Migration of people into area or country
Where is the UK and Congo on the HDI?
- UK 15th on HDI ranking
- DR Congo 179th on HDI ranking
What are the UK and Congo’s population densities?
- UK population density is 270.7/km2
- Congo population density is 39.19/km2
Why is the UK a stage 4 country?
- Safer from invasion as island
- Island allows for easy trade
- Lots of arable land due to fertile soil so reliable food supply
- Rich in natural resources
- The British Empire (colonialisation)
- Education is compulsory no matter what gender or race
- Woman educated as a western society
- Assess to good healthcare (80 years average age)
Why is Uganda a stage 2 country?
- Hot climate means not loads of arable land
- Some mineral deposits however not been exploited
- Not very fertile soils
- Landlocked which means trade is hard
- Gender inequality as woman recieve less education therefore have children younger (average age for first child 18.9)
- Only 34% use contraception
- Lack of family planning
- Poor medical care
How many children on average does one woman have in Uganda compared to UK?
- UK woman have 1.9 children on average
- Uganda woman have 5.8 children on average
How did colonialisation effect Congo?
- Congo is first most resource rich country in the world however these resources have been exploited by colonialisation (worth in excess of $24 trillion)
What is average GNI per capita in UK and Congo?
- In UK GNI per capita $42370
- In Congo GNI per capita $520
What was dependancy ratio in UK in 1999 compared to prediction in 2040?
- Dependancy ratio in UK in 1999 was 3.7 to 1
- Dependancy ration in UK by 2040 will be at the most 2.1 to 1
What happens if the dependancy ratio increases?
- Puts a higher burden on shrinking working population
- Slows down economic growth as working individual has to pay more taxes so has less free funds to invest and spend on goods
- Pressure on NHS as old people on average pay little to no tax yet are most dependent on the service. This leads to young peoples taxes increasing due to increased demand for the service but fewer people to pay for it.
What are the main impacts of an aging population?
- Increase in dependancy ratio
- Increased goverment spending on healthcare and pensions
- Taxes rise for the working man or woman
- Shortage of workers
- Positive feedback loop as taxes rise for the working population (who fall into reproductive age) they have fewer children due to the high cost of raising them
- Higher taxes for working individuals means more disincentives to work
- Higher savings for pensions will reduce capital investments by young people
Define population momentum?
- Population momentum is where population will continue to rise even if fertility rate declines
What are the main impacts of a youthful population?
- Lots of potential future workers
- Demographic dividend possible
- If there is a natural resource or industry that needs lots of labour it can be in bountiful supply
- High dependancy as lots of children reliant on few adults
- Education, health and sanitation can suffer as not enough tax payers
- 50% of Ugandas population is under 15 years of age
- Teenage mothers lack material resources to support children
How has China controlled population?
- Communism allows for the state to have absolute control over their population
- One child policy introduced in 1979. Incentives were free education, health care, pensions and family benefits. If you had more than one child these benefits werer stripped from you.
- Family planning helped lower growth rate
- 94% of population live in Eastern China and 6% in West
- Encourage movement to cities where work is prioritised over children
Where have Chinas population laws worked and not worked?
- Worked:
- Reduced population growth by about 400 million
- Not worked:
- Thousands of children abandoned due to 1 child policy
- 90% of foetuses aborted are female
- Men are required to care of parents so boys are prefered over girls
- Fell below replacement level in 2000, this means in future they will have a huge problem as far to many old people for youngs people to support.
- Individuals are not “free.” They are indoctrinated, manipulated and dictated by the state no matter what their beliefs or thoughts are on policies or their familes. In recent years they have converted to more of a free market economy but this is like a facade hiding the true heart of the country which is communist.
What is a pro-natalist policy?
- Encouraging children to be born
What is a anti-natalist policy?
- Discouraging children to be born
State the physical factors which effect population change
- Climate: UK’s cool wet winters and warm wet summers allow for optimum weather for growing crops and having enough water
- Frequency of extreme weather events: UK rarely experiences extreme heat or cold hence resulting in better crop yields allowing you to feed a growing population
- Arable land: Rich fertile soils, not deserts
- The topography
- Island or Landlocked