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APHG Unit 2.1-2.4
Words from learning objective 2.1-2.4
Term | Definition |
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population distribution | a description of how individuals are distributed with respect to one another |
population density | a measurement of the number of people per given unit of land |
arithmetic densiy | the total number of people divided by the total land area |
arable land | land suited for agriculture |
physiological density | the number of people per unit of area of arable land |
agricultural density | the ratio of the number of farmers to the total amount of land suitable for agriculture |
carrying capacity | largest number of individuals of a population that an environment can support |
sex ratio | the number of males per 100 females in the population |
age cohort | people born at roughly the same time who pass through the course of life together |
population pyramid | a model used in population geography to show the age and sex distribution of a particular area |
Baby Boom | a cohort of individuals born in the USA between 1946 and 1964 which was a time of relative peace and prosperity following WW2 |
mortality | the state of being subject to death |
fertility | the production of offspring within a population |
doubling time | the number of years needed to double a population assuming a constant rate of natural increase |
natural increase | the growth rate of a population; the difference between birthrate and death rate |
demography | the scientific study of population characteristics |
demographics | statistical data relating to the population and particular groups within it |