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| The study of HUMAN POPULATIONS, including how they change due to births, deaths, aging and migration. |
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| Maximum number of people that an environment can sustain per year. |
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| Show population in groups starting with the young on the bottom and the old on top |
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Anual number of LIVE BIRTHS per 1000 people in a country
30 to 40 is high, 20 is low |
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| Annual number of DEATHS per 1000 in a country. over 20 is considered high |
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| The average number of children that would be born TO EACH WOMEN DURING HER CHILD BEARING years |
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NUMBER OF CHILDREN EACH WOMEN must have to ensure that population stays level
world replacement fertility is 2.3 |
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| The average number of years a person is EXPECTED TO LIVE. It is based on the death rates of specific age groups in a given population. |
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The change in population OVERTIME!!! in 2011:
135 million people will be born
57 million people will die
78 million people will increase the worlds population. |
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| Demographic transition model |
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| A process with phases that countries move though as living conditions IMPROVE. A MODEL that helps understand POPULATION GROWTH rates in different countries over time |
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NUMBER OF DEATHS OF INFANTS under 1 year per 1000 people in a country
world imp: 41
USA: 6
Chad, Africa: 128
CT: 5.5 |
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