unit 3 test Flashcards
what is Population
Population typically refers the number of people in a single area whether it be a city or town, region, country, or the world. Governments typically quantify the size of the resident population within their jurisdiction by a process called a census
Populations are more than just numbers. Populations are dynamic. They are always changing due to births, deaths, migrations as well as many other factors such as living conditions and conflict.
what is Demography
The study of human population
Birth rate, death rate, migration, fertility rate, rate of natural increase, population pyramids
Trends, patterns, projections
Policies and programs
what is Migration
Human migration involves the movement of people from one place to another with intentions of settling, permanently or temporarily, at a new location.
what is Immigration
Immigration is the international movement of people to a destination country of which they are not natives or where they do not possess citizenship in order to settle as permanent residents or naturalized citizens.
what is Refugees
a person who has been forced to leave their country in order to escape war, persecution, or natural disaster.
what is Urbanization
Urbanization refers to the population shift from rural to urban areas, the corresponding decrease in the proportion of people living in rural areas, and the ways in which societies adapt to this change.
what is Cities
A city is a large human settlement. It can be defined as a permanent and densely settled place with administratively defined boundaries whose members work primarily on non-agricultural tasks
what is Urban Growth
Urban sprawl is the unrestricted growth in many urban areas of housing, commercial development, and roads over large expanses of land, with little concern for urban planning
BIRTH RATE
The number of births per 1000 people in a year.
DEATH RATE
The number of deaths per 1000 people in a year.
NATURAL INCREASE
Is the number of extra people (birth rate minus
the death rate). This is usually given as a
percentage.
INFANT MORTALITY RATE
The annual number of deaths of infants less
than one year old per 1,000 live births.
LIFE EXPECTANCY
The number of years that an individual is
expected to live as determined by statistics.
HOW DO WE MEASURE CHANGES IN POPULATION?
Birth Rate Death Rate Rate of Natural Increase Fertility Rates Net Migration Rate Population Pyramids
MEDC
More Economically Developed Country
i.e. Canada, Germany
LEDC
Less Economically Developed Country
i.e. Pakistan, Malaysia
Population Structure
Shows visually how a population is made up of people of different ages (males/females)
Called a population pyramid
Two bar graphs (one male, one female) side by side.
What percentage of a population is of a certain gender
What percentage is a certain age range.
population pyramid for - Typical of a developing country (ex: Kenya)
Wide base = large proportion of young people
Narrow at the top = small proportion of elderly
population pyramid for - Typical of a developed country
Narrow at the base, wider in the middle, and stays wide until the very top (high percentage of elderly)
Note more old women than men.
Ex: Italy, Canada
The infant mortality = higher in LEDCs (Less Economically Developed Country). LEDCs often have:
A shortage of medical services A greater number of children born per mother Poor nutrition of mothers and babies Less knowledge of health matters Unclean water/supplies
The chances of surviving to your fifth birthday depends on where in the world you are born.
LEDCs have high death rates because, in many cases, there are:
Dirty, unreliable water supplies Poor housing conditions Poor access to medical services Endemic disease in some countries Diets that are short in calories and/or protein
MEDCs have low death rates because, in many cases, there are:
Good housing conditions
Safe water supplies
More than enough food to eat
Advanced medical services which are easy to access
Some developed countries have a high death rate as they have an ageing population with many older people.
Effects of Population Growth
Increased Poverty
Resource Depletion
Strain on Social Services
Urban Sprawl
Effects of Population Decline
Economic Growth / Maintenance
Rising taxes to pay for increased health care
Less workforce
Urban Issues - redesigning communities for an aging population
Pro-natalist policies? (to raise BR)
Increased immigration?