Population & Settlement - Population Flashcards
What 2 things affect population growth?
Birth and death rate
What is natural increase?
When the birth rate is higher than the death rate
What is natural decrease?
When the birth rate is lower than the death rate
What happens to a country in Stage 1 of the DTM?
Birth rate - high
Death rate - high
Population growth - 0
Population size - low and steady
Example - no countries, some tribes in Brazil
What happens to a country in Stage 2 of the DTM?
Birth rate - high
Death rate - falling
Population growth - very high
Population size - fast increasing
Example - Gambia
What happens to a county in Stage 3 of the DTM?
Birth rate - falling
Death rate - falling
Population growth - high
Population size - increasing
Example - Egypt
What happens to a county in Stage 4 of the DTM?
Birth rate - low
Death rate - low
Population growth - 0
Population size - high
Example - UK
What happens to a country in Stage 5 of the DTM?
Birth rate - slowly falling
Death rate - low
Population growth - decreasing
Population size - falling
Example - Japan
What happens to a country as it becomes more developed?
Birth and death rate changes - more money, healthcare improves, death rate drops = population increase
What is a population pyramid?
Shows how many people there are of each age group and sex
What is overpopulation and what causes it?
When there are too many people for the resources
Rapid population growth causes it
What counties are more likely to be overpopulated?
Stage 2/3 - LEDCs bc they have high birth rate and falling death rate
What causes a youthful population?
Low life expectancy, high birth rate
What problems can youthful & overpopulated countries face?
Services can’t cope
Food/water shortage
Homelessness
Not enough jobs
Increased poverty - children born into already poor families, children have to work to support family so they miss out on education
What can be done to control overpopulation?
Birth control
Immigration laws
