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### 33 Cards in this Set

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 provides the background tools and understandings of theose interests. It focuses on the number, composition, and distribution of human beings in relation to variations in the conditions of earth. space. Population geography the statistical study of human population demography is the annual number of live births per 1000 population. crude birth rate (CBR) is a more refined and thus more satisfactory statement than the crude birth rate for showing the rate and probability of reproduction among fertile females, the only segment of population bearing children. total fertility rate is calculated in the same way as the crude birth rate; the annual number of events per 1000 population. crude death rate (CDR) a graphic device that represents a population's age and sex composition. population pyramid is a simple measure of the number of ecomomic dependents, old or young, that each 100 people in the productive years must support. dependency ratio is derived by subtracting the crude death rate from crude birth rate. rate of natural increase the rate of increase can be related to the time it takes for a population to double if the current growth rate remains constant. doubling time a curve shaped like the letter J, depicting expinential or geometric growth (1,2,4,8,16...) J-curve one attempt to summarize a historically observed voluntary limitation of population growth-and relating that control to economic development. demographic transition summarizes the contrbution made to regional population change over time by the combination of natural change and net migration demographic equation applied to permanently inhabited areas of the earth's surface. ecumene the uninhibited or very sparsely occupied zone nonecumene a measurement of the numbers of persons per unit area of land within predetermined limits, usually political or census boundaries. population density one attempt to summarize a historically observed voluntary limitation of population growth-and relating that control to economic development. demographic transition summarizes the contrbution made to regional population change over time by the combination of natural change and net migration demographic equation applied to permanently inhabited areas of the earth's surface. ecumene the uninhibited or very sparsely occupied zone nonecumene a measurement of the numbers of persons per unit area of land within predetermined limits, usually political or census boundaries. population density is the most common and least satisfying expression of that variation. It is the calculation of the number of people per unit area of land, usually within the boundaries of a political entity. crude density or arithmetic density When total population is divided by arable land area alone. an expression of population pressure exerted on agricultural land. Physiological density it simply excludes city populations from the physiological density calculation and reports the number of rural residents per unit of agriculturally productive land. Agricultural density a value judgement reflecting an observation or a conviction that an environment or a territory is unable adequately to support its present population. Overpopulation the number of people an area can support on a sustained basis, given the prevailing technology. Carrying capacity estimates of future population size, age, and sex composition based on current data. population projections an English economist and demographer Malthus the horizontal bending, or leveling, of an exponential J-curve. S-curve when the population is equivalent to the carrying capacity of the occupied area homeostatic plateau The advocacy of population control programs to preserve and improve general national prosperity and well-being. Neo-Malthusianism The tendency for population growth to continue despite stringent family planning programs because of a relatively high concentration of people in the childbearing years. Population Momentum records the frequency of occurrence of an event during a given time frame for a designated population Rates measures that refer to data to a population group unified by a specified common characteristic Cohort