EESA01H3 Chapter 6: Chapter 6

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Doubling time 70 divided by annual percentage growth rate. Thomas malthus a) favoured population growth and b) argued that the pressure of population growth on the availability of resources could lead to disaster. Reason these predictions haven"t come t rue yet is because we have always had a breakthrough: i. e. : technology. The application of population ecology principles to the study of statistical change in human populations is the focus of the social silence of demography. Before estimates went from 1-2 billion people living prosperously to 33 billion managing to live in extreme poverty it is still unknown, as humans have these major breakthroughs in history. Demographers study population size, density, distribution, age structure, sex ration and rates of birth, death, immigration and emigration of humans, just as population ecologists study these characteristics in other organisms. Population density # of people per unit area. Population density and distribution, age structure, sex ratios.