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17 Cards in this Set
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demography
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the scientific study of population, encompasses all measures of population: size, distribution, composition, age structure, and change.
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demography: 2 subareas:
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1. formal demography: deals with gathering. collating, analyzing and presenting population data
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demography: 2 subareas:
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2. social demography: the study of population patterns within a social context.
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3 population processes
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1. fertility
2. mortality 3. migration |
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1. Fertility:
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measures the number if children born to a woman or to a population of women.
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actual # of children women produce
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Fecundity:
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is the max. rate at which women can potentially produce children.
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hutterites
natural fertility: # of children born in the absence if conscious birth control |
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Crude birth rate:
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the annual # of live births per 1,000 members of a population
to calculate birth rate, one simply needs to know the # of births in a year and the size if the population. |
varies from one country to another
us= 14 to 1,000 |
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2. Mortality
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deaths w/in a pop.
1. life span 2. life expectancy |
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life span
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the most advanced age to which humans can survive
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life expectancy
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avg. number if yrs. that persons in a given pop. born at a particular time can expect to live.
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morbidity
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refers to rates if diseases and illness in a pop.
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how is mortality measured?
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1. crude death rate: the annual # of deaths per 1,000 members or a pop.
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figured by dividing the annual # of deaths by the total population and mult. by 1,000
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how is mortality measured?
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2. age-specific death rates: to measure the # of deaths per 1000 persons in a specific age group
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how is mortality measured?
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infant mortality rate: the # of deaths among infants under one year of age per 1000 live births
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3. Migration:
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refers to the movement of people from one geographical area to another for the purpose of establishing s new residence.
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how is migration measured?
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1. gross migration rate: the # of persons per 1000 members of a pop who, in a given year, enter (immigrants) or leave (emigrants) a geographical area
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how is migration measured?
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2. net migration rate: is the annual increase or decrease per 1000 members of a pop. resulting from movement into and out of the pop.
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