The proportion of the earth inhabited by humans
Ecumene
the average length of time that an individual is expected to live
life expectancy
Diagram showing the breakdown of population by age and gender
Population Pyramid
person who flees to another country to escape persecution or disaster
Refugee
Permanent movement undertaken by choice.
voluntary migration
total number of people divided by total land area
tells us how densely populated our land is
arithmetic density
the growth rate of a population; the difference between birthrate and death rate
natural increase rate
annual number of children that die before their first birthday
infant mortality rate
When people don't have a choice and have to move
Forced Migration
Someone who has migrated to another country in the hope of being recognized as a refugee
asylum seeker
total population divided by arable land area
tells us how much food we need to produce
physiological density
average number of children a woman is expected to have in her child bearing years (15-49)
total fertility rate
The number of people who are too young or too old to work
dependency ratio
the loss of highly educated and skilled workers to other countries
brain drain
Factors that induce people to leave old residence and move to new locations.
push/pull factors
total number of farmers divided by arable land. Tells us how efficient is our land
agricultural density
change in a population from high birth and death rates to low birth and death rates
demographic transition
when a country's government wants their citizens to have children
Pro-natalist
the process by which immigrants follow other immigrants to a particular city/neighborhood
chain migration
An environmental or cultural feature of the landscape that hinders migration.
intervening obstacle
the largest population that an environment can support at any given time
carrying capacity
distinctive causes of death in each stage of the demographic transition
epidemiologic transition
laws or mindset of a country that seeks to limit or discourage women giving birth
Anti-natalist
Transfers of money/goods by foreign workers to their home countries.
Remittance
A good opportunity found closer than another similar opportunity
intervening opportunities