NUTR 1010 Chapter Notes - Chapter 10: Thomas Robert Malthus, Demographic Transition, Population Control
18 Apr 2016
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Chapter 10: other factors influencing demand for food. The most convenient way to visualize the age structure of a population, organized through age and sex. Traditionally made with intervals of 5-10 years, with the youngest on the bottom. It shows momentum in the population and dependency ratios: over a period of time, population would simply reproduce itself if couples produced exactly, demographic momentum doesn"t mean the population will stop growing. the right amount of kids. In most populations this ratio comes to 2. 1 children per woman. For developed countries, the number of females expecting to enter the childbearing age is the same amount of females expecting to exit. For developing country, there are more girls entering childbearing age, therefor population would continue to grow, this is population momentum. Population pyramids illustrate the dependency ratios in a population. A dependency ratio is the ratio dependant on working-age adults (15-64yrs). Child dependency is younger than 15 divided by working-age population.
