patterns of population APHUG

dispersed

a linear pattern that describes a population that appears to form long and narrow lines

population distribution

where people live within a geographic area affect the cultural, political, environmental and economic aspects and conditions any given area.

climate

refers to the long term patterns of weather in a area that greatly affects population distribution in direct and indirect ways

landforms

influence population distribution (natural features of earths surface)

human migration

a drawing force in population distribution that is often influenced by economic which occurs when people make a permanent move from one place to another

population density

which is the number of people occupying a unit of land, is an important aspect of population

arithmetic density

measures the total number of people per unit in a area of land

physiological density

the total number of people per unit of arable land

arable land

land that can be used to grow crops

agriculture density

measures the total number of farmers per unit of arable land

subsistence agriculture

farming crops and livestock for only the farmers’ families and close community

carrying capacity

a key concept originating from biology it represents the threshold at which the population of a species levels off at an environmentally determined maximum because of a shortage of resources

dependency ratio

the number of people in a dependent age group (under 15-65 and older)

sex ratio

when evaluating population composition (represents the proportion of males to females in a population)

demographic

data about the structure and characteristics of human population

fertility

the ability to produce children

crude birth rate (CBR)

the number of births in a given year per 1,000 people in a given population

total fertility rate (TFR)

the average number of children one woman in a given country or region will have have during her childbearing years (15- 49)

mortality

A component of population change high in LDC things like healthcare, clean water, and adequate food play a part in it

crude death rate (CDR)

the number of deaths of a given population per 1,000 people

infant mortality rate (IMR)

the number of deaths of children under the age of 1 per 1,000

life expectancy

the average number of years a person is expected to live

population pyramids

interpret the implication of the changing structure of a population