Population Vocabulary - Unit 2 Flashcards
Age distribution
The frequency of different ages or age groups in a given population.
Carrying capacity
The “carrying capacity” of an area refers to the maximum number of people who can be realistically sustained by the geography of that area.
Cohort
A population group that’s distinguished by a certain characteristic.
Demographic equation
The formula that calculates population change.
Demographic momentum
This is the tendency for the growing population to continue growing after a fertility decline because of their young age distribution.
Demographic Transition model
A tool demographers use to categorize countries’ population growth rates and economic structures.
Dependency ratio
Reflects the number of people in a country whose labor supports the rest of the country that is incapable of working.
Doubling time
It is the projected amount of time that it will take for a given population to double.
Ecumene
This is used to describe land that is permanently populated by human society.
Epidemiological Transition model
Distinctive cases of death in each stage of the demographic transitional model.
Gendered space
Areas in which particular genders of people, and particular types of gender expression, are considered welcome or appropriate, and other types are unwelcome or inappropriate.
Infant mortality rate
The total number of deaths in a year among infants under one year old for every 1,000 live births in a society.
J-curve (related to DTM)
This is when the projection population shows exponential growth; sometimes shaped as a j-curve.
Maladaptation
This is an adaptation that has become less helpful than harmful.
Thomas Malthus
British economist Thomas Malthus coined the term overpopulation in the late 1700s.
Mortality
The number of deaths per thousand people.
Neo-Malthusian
Neo-Malthusians today believe that humanity is ripe for another population calamity.
Overpopulation
Overpopulation, as a defined term, generally occurs when a region has exceeded its “carrying capacity.” The “carrying capacity” of a region refers to the number of people a region can reasonably support and sustain.
Population explosion
The rapid growth of the world’s human population during the past century, attended by ever-shorter doubling times and accelerating rates of increase.
Population projection
The estimated population in a certain time in the future.
Population pyramid
A pyramid-like diagram that displays the population distributions between age and sex.
Rate of natural increase
The percentage growth of a population in a year, computed as the crude birth rate minus the crude death rate.
S-curve (related to DTM)
Traces the cyclical movement upwards and downwards in a graph.
Sex ratio
The number of males per hundred females in the population is the sex ratio.