A graph which shows the age and sex structure of a place.
In the population structure of many MEDCs there is often a high proportion of elderly people who have survived due to advances in nutrition and medical care.
The number of live births per 1000 people per year.
A counting of people by the government every ten years to gather data for planning of schools, hospitals, etc.
Using birth control to stop pregnancy.
The number of deaths per 1000 people per year.
Demographic Transition Model
Diagram which shows the relationship between birth and death rates and how changes in these affect the total population.
The ratio between those of working age and those of non-working age.
Distribution (of a population):
Where people are found and where they are not found.
The number of babies dying before their first birthday per 1000 live births.
The average number of years a person born in a particular country might be expected to live.
Natural increase or decrease
The difference between the birth rate and the death rate.
Where there are too many people and not enough resources to support a satisfactory quality of life.
Number of people per square kilometre.
An area that has few people living in it.
In the population structure of LEDCs, there is often a higher proportion of young people due to high birth rates and a reduction in infant mortality due to better nutrition, education and medical care.
Youthful population structure
Seen as a wide base on population pyramids that reflect high birth rates in LEDCs.
Ageing population structure
A population pyramid with a narrower shape, broad at the top, found in MEDCs.
Having a population lower than is normal or desirable.
The total fertility rate at which women give birth to enough babies to sustain population levels.
The average number of children born per woman.
More Economically Developed Country
Flickr Creative Commons Images
Some images used in this set are licensed under the Creative Commons through Flickr.com. Click to see the original works with their full license.