Population Flashcards
Population density
the number of people in a given area. The total population in a
country or region divided by its area (people/km2).
Population distribution
the way people are spread out in an area.
Crude birth rate
the number of births per 1000 people (CBR).
Crude death rate
the number of deaths per 1000 people (CDR).
Natural increase
The difference between the birth rate and death rate. Natural increase will occur if birth rate is higher than death rate. Natural increase = CBR – CDR.
Demographic transition
model to describe how population changes over time due to changes in birth & death rates.
Family planning
where families receive advice about how to control births and access healthcare such as contraception.
Migration
the movement of people into an area.
International migration
when people move from one place to another
Internal migration
movement of people inside a country.
Forced migration
when people are forced to leave an area due to natural disasters, war etc.
Emigration
When people leave an area
Immigration
When people move into an area
Positive net migration
when more people move into an area than leave an area.
Negative net migration
when more people leave an area than move into an area.