Unit 2 Flashcards
The ratio of the number of
farmers to the total amount of
land suitable for agriculture.
Agricultural Density
The total number of people
divided by the total land area.
Arithmetic Density
The portion of Earth’s surface
occupied by permanent human
settlement.
Ecumene
The number of people per unit of
area of arable land, which is land
suitable for agriculture.
Physiological Density
The process of change in a society’s
population from a condition of high
crude birth and death rates and low
rate of natural increase to a
condition of low crude birth and
death rates, low rate of natural
increase, and a higher total
population.
Demographic Transition
Medical technology invented in
Europe and North America that is
diffused to the poorer countries of
Latin America, Asia, and Africa.
Improved medical practices have
eliminated many of the traditional
causes of death in poorer countries
and enabled more people to live
longer and healthier lives.
Medical Revolution
A decline of the total fertility rate to
the point where the natural increase
rate equals zero.
Zero Population Growth
(ZPG)
The number of people under the age
of 15 and over age 64 compared to
the number of people active in the
labor force
Dependency Ratio
The number of working-age people
(ages 15-64) divided by the number
of persons 65 and older.
Elderly Support Ratio
Distinctive causes of death in each
stage of the demographic transition
Epidemiologic Transition
Branch of medical science concerned with the incidence, distribution, and control of diseases that are prevalent among a population at a special time and are produced by some special causes not generally present in the affected locality
Epidemiology
A bar graph representing the
distribution of population by age and sex.
Population Pyramid
The process of changes in
culture that result from
the meeting of two
groups, each of which
retains distinct culture
features.
Acculturation
The process by which a
group’s cultural features
are altered to resemble
those of another dominant
group.
Assimilation
a refugee who is seeking
asylum or safety in
another country after
escaping their home
country for fear of their
lives
Asylum Seeker
Migration of people to a
specific location because
relatives or members of
the same nationality
previously migrated there
Chain migration
The temporary movement
of a migrant worker
between home and host
countries to seek
employment
Circular migration
Short-term, repetitive, or
cyclical movements that
recur on a regular basis
Circulation
Migration from a location
Emigration
Permanent movement
compelled usually by
cultural factors.
Forced migration
Workers who migrate to
the more developed
countries of Northern and
Western Europe, usually
from Southern and Eastern
Europe or from North
Africa, in search of higher-
paying jobs.
Guest workers
Migration to a new
location
Immigration
Someone who has been
forced to migrate for
similar political reasons as
a refugee but has not
migrated across an
international border.
Internally Displaced
Person (IDP)
Permanent movement
from one region of a
country to another
Interregional migration
An environmental or
cultural feature of the
landscape that hinders
migration
Intervening obstacle
Permanent movement
within one region of a
country.
Intraregional migration
Change in the migration
pattern in a society that
results from
industrialization,
population growth, and
other social and economic
changes that also produce
the demographic
transition.
Migration transition
All types of movement
from one location to
another.
Mobility
Factor that induces people
to move to a new location
Pull factor
Factor that induces people
to leave old residences
Push factor
In reference to migration,
laws that place maximum
limits on the number of
people who can immigrate
to a country each year.
Quotas
