December Exam - Population Dynamics, Migration, Population Structure, Population Density And Distribution Flashcards
(37 cards)
Reasons for the rapid increase in the worlds population
Poverty Poor contraceptive use Free healthcare Migration Immigration Corruption Higher life expectancy
What is birth rate
Birth rate is the number of born per year, per thousand of the current population
What is death rate
Death rate is number of deaths per a thousand people
What is natural increase
When birth rate exceeds death rate
What is the demographic transition model
The demographic transition model is a model that show how population has changed over time in terms of there birth/death rates and total population size
Stage 1 of the demographic transition model
Birth rate is high Death rate is high Population growth is slow Infant mortality high Life expectancy low
Stage 2 of the demographic transition model
Death rate declines
Birth rate remains the same
Population increases
Stage 3 of the demographic transition model
Death rates decrease
Birth rates decrease
Slow total population
What is total fertility rate
The average number of children a woman has during her lifetime
Factors affecting fertility: demographic
In some countries where infant mortality is high, people try to have more babies kids so fertility rate is high
Factors affecting fertility: Social Cultural
Some societies, like Africa, tradition demands high rates of reproduction
Factors affecting fertility: Economic
Fertility rates are higher in LEDC because they think that more children brings more money
Factors affecting fertility: Political
Some countries encourage young couples to have more babies for advantages
How does low investment in healthcare affect the population
Lower investment in healthcare means more deaths due to injury. Low life expectancy
How does high rates of abortion affect the population
High rates of abortion means that there is less birth rates than abortion meaning that the population will decline
How does culture of smoking and alcohol affect the population
Smoking and drinking means that people have more diseases and cancer and die
How does high obesity rates affect the population
High obesity rates means higher death rates and lower life expectantly
What is migration
The movement of people
What is immigration
The act of coming to live permanently in another country
Forced migration: Syria to UK
Push Factors: Death Hunger Danger Not secure No jobs Lack of medicine
Pull factors Jobs Safe Peace Homes Education Medical security
Impacts:
4.25 million Syrians intentionally displaced
Due to war thousands of innocent people dead
Reasons for migration
Low income Natural disasters Social upheaval Housing shortages Poor employment opportunities Intolerance
What is a population pyramid
A graphical illustration that shows the distribution on various age groups in a population
Country with a high dependent population: Niger
Has a young dependent population, high MR and BR, lower elderly dependent population.
It has 1.6 female babies whereas Uk has 1.2
The uk has far more adults than Niger
In Niger there are more children than adults and in the uk there are more adults than children
A large wide base shows
A large number of children
