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IB GEO HL 1.Populations in transition
Terms in this set (23)
the spread of a phenomenon over time and space.
the largest population that the resources of a given environment can support.
the scientific study of human populations
the tendency for population growth to continue beyond the time that replacement level fertility has achieved, because of a relatively high concentration of people in the child bearing years. this situation is due to past high fertility rates which result in large numbers of young people
the historical shift of birth and death rates from high to low levels in a populations
Crude birth rate
the number of births per 1000 population in a given year. It is only a very broad indicator as it does not take into account the age and gender distribution of the population.
Crude death rate
the number of deaths per 1000 population in a given year.
Rate of natural change
the difference between the birth rate and the death rate.
an official periodic count of a population including such information as age, gender, occupation and ethnic origin
when the numbers of births is lower than the number of deaths.
the migration of people into a country from one or a number of other countries. (in)
the migration of people from a country to one or a number of other countries. (out)
the difference between immigration and emigration for a particular country.
the number of live births per 1000 women aged 15-49 in a given year.
Total fertility rate
the average number of children that would be born alive to a woman during her lifetime.
Replacement level fertility
the level at which each generation has just enough children to replace themselves in the population. Although the level varies for different populations, a total fertility rate of 2.12 children is usually considered as replacement level.
Infant mortality rate
the number of deaths of infants under 1 year of age per 1000 live births in a given year
child mortality rate
the number of deaths of children under 5 years of age per 1000 live births in a given year
the average number of years a person may expect to live when born, assuming past trends continue.
the composition of a population, the most important elements of which are age and sex
a bar chart, arranged vertically, that shows the distribution of a population by age and gender.
the n umber of males per 100 females in a population.
the prediction of future populations based on the present age-gender structure, and with present rates of fertility, mortality and migrations
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