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4.3 Monitoring Human Populations and Changing Growth Rates (population…
4.3 Monitoring Human Populations and Changing Growth Rates
population growth dilemaas
Population growth is determined by the number of young, middle aged and old age groups.
Can such growth damage a population?
Population growth is changing due to factors like births, deaths, migration and immigration.
What slows population growth?
Economic Development demografic transition
Access to education and employment especially for women.
Family planing as a service to prevent young pregnancy. SEX EDUCATION. Access to birth control.
Pro-natalist policies encourage higher birth rates through incentives like tax breaks, better working conditions, or even material compensation. Anti-natalist policies encourage or enforce fewer children.
Developmental stages of economy
Preindustrial:High BR, DR's drop
Transitional:Drop in BR's and DR's
Industrial:High BR and DR
Postindustrial:BR's equal DR's and then fall below the DR's, causing a decline in population growth.
Diagrams of Age Structure
Wide base
Usual un less developed countries
Pre-reproductive (ages 0-14)
Reproductive (15-44)
Post-reproductive (ages 45+)
A higher amount of seniors means that there is more support and that there will be less people working in younger age groups. This leads to smaller bases