Population Flashcards
Population
What two factors affect population size?
Birth rate and death rate
Population
What is birth rate?
Number of live babies born per thousand of population per year.
Population
What is death rate?
Number of deaths per thousand of population per year.
Population
What is natural increase?
When birth rate is higher than rate of death, so population grows.
Population
What is a natural decrease?
When death rate is higher than birth rate.
Population
What other factor also affects population size?
Migration - number of people moving from one area to another.
Population
What stages are poor countries at on the DTM?
Earlier stages
Population
What stages are richer, more developed countries at on the DTM?
Later stages
Population
What does DTM stand for?
Demographic Transition Model
Population
How is population growth described?
Exponential
Population
What factors can increase population?
Better health care
Better sanitation
More babies being born
Population
What factors can cause the population to decrease?
Contraception
Limits to baby numbers
Economic development
Population
What is population growth rate?
Number of people added to, or lost from population each year as a result of natural increase/migration.
Population
What is sustainable development?
Meeting the needs of the population without compromising the ability of future generations to meet their needs.
Population
What are young dependents
Those under the age of 15
Population
What are working population or those economically active?
Those aged 15-64
Population
What are elderly dependents?
Those 65+
Population
What is the dependency ratio?
A measure of the number of working people and those dependent on them.
(Kids + elderly) / working population x 100