AP Environmental Science

4) Define each of the following terms: Demographic transition- Hypothesis that countries, as they become industrialized, have declines in death rates followed by declines in birth rates Demography-the application of principles from population ecology to the study of statistical change in human populations Industrial stage-3rd stage of demographic transition. Birth rates fall b/c children lose their economic value, women have employment opportunities outside of the home and access to birth control. Population growth is reduced Life expectancy-the average # of years an individual in a particular age group is likely to continue to live Natural rate of population change-change due to birth and death rates alone, excluding migration