Demography and Population Flashcards
Three components of demography and Population
- Fertility
- Mortality
- Migration
7 billionth baby
Danica May Camacho
October 31, 2011
demos meaning
people or population
graphy meaning
draw or write
Study of population
Demography
The whole number of inhabitants occupying an area
(such as a country or the world) and continually being
modified by increases (births and immigrations) and
losses (deaths and emigrations). (Teitelbaum, 2021)
Population
refers to the
number of children a woman has actually born
Fertility
Sociologists measure fertility using
crude birth rate
the quality or state of being mortal
Mortality
is a measure of the
number of people who die.
Mortality rate
is the movement of people
into and out of an area.
Migration
s the movement of
people into an area.
Immigration
is the movement of people out
of an area.
Emigration
the number of men for every hundred women
Sex ratio
a picture of population distribution by sex and age
Population pyramid
change in population size over time that takes into account
the number of births and deaths as well as immigration and emigration
Population Growth
is the percentage change in the size of the
population in a year.
Population growth rate/change
is a pattern of data that shows greater increases with
passing time, creating the curve of an exponential function.
Exponential growth
average number of years that an infant born in a particular
year in a particular country can be expected to live, given the current average
life span and death rate in that country.
Life expectancy
Demographic theories
-Malthus theory
- Zero population growth
-Cornucopian theory
- Demographic transition theory
was an English clergyman who made dire
predictions about earth’ s ability to sustain its growing population.
Thomas Malthus
3 factors that control human population
War
Feminine
Disease
three factors would control human
population that exceeded the earth’ s carrying capacity, or how many
people can live in a given area considering the amount of available
resources. Malthus identified these factors aswar, famine, and disease.
Malthusian Theory
Neo-malthusian researcher brought Malthus prediction to 20th
Paul Ehrlich
in which the
number of people entering a population through birth or immigration is
equal to the number of people leaving it via death or emigration. While
supportforthis concept ismixed, it is still considered apossible solution to global overpopulation
Zero population growth
scoffs at the idea of
humans wiping themselves out; it asserts that
human ingenuity can resolve any
environmental or social issues that develop.
Cornucopian theory
suggests that future population
growth will develop along a predictable
four-stage model.
Demographic transition theory
