GEOG 1HA3 Lecture 6: 6
10 Mar 2017
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Document Summary
Population dynamics: globally, population is understood with reference to two factors: fertility (births) & mortality (deaths, p1 = p0 + (b-d) Variations in fertility: developed vs. developing: economic development & rates of fertility, tfr: developed = 1. 6 (canada = 1. 6); developing = 2. 8, declining trend in both cases, regional variations, ie. urban vs rural. Mortality: measures: crude death rate (cdr) - cdr = (d/p) x 1000, cdr does not account for the age of the population, life expectancy - the average number of years of life. Infant mortality rate (imr) - imr = d0-1/b) x 1000. Variations in mortality/life expectancy: patterns of cdr and le are almost mirror images of each other, variability of cdr & le reflects vairations in, access to health-care services, general economic circumstances, food supply, general environmental conditions (ie. sanitations) Population migration: the spatial movement of population, from one place to another, p1 = p0 + (b-d) + (i-e, key issues of interest.
