Unit 2

• Dispersed: a pattern that is spread out
• Random patterns describe populations that are distributed without logical order
• Population distribution: where people live based on a geographical location
• Population distribution effects the culture, politics, environment and human factors of an area
• Global distributions are effected by physical, environmental, and human factors
• People tend to prefer to live in areas with constant factors (not to hot or cold, good food supply, etc)
• Climate: long-term patterns of weather in an area that greatly effects population distribution in direct and indirect ways
• Unlike weather, climate takes a long time to change and shape the environment
• Temperature Climates: places with moderate temperatures and adequate precipitation
• With new technology, people are able to live in previously uninhabitable places (with use of new house elevation and sea walls)
• Landforms: the natural features of Earth’s surface
• People use surface water supplies (rivers and lakes) and aquifers to get water to inaccessible locations
• People tend to love in places where they can get resources (food)
• Human migration: occurs when people permanently move from one place to another
• The most common reason for migration is money
• People often choose to migrate due to poor government, lack of safety/convert, lack of job opportunities, and a poor family background
• Population Density: the number of people occupying a place of land
• Arithmetic Density (crude density): the total number of people per unit of land
• Arithmetic density is calculated by the total population and the total land area
• Physiological Density: total number of people per unit of arable land
• Physiological density shows if people can agriculturally sustain themselves, but fails to explain how fertile or productive the land is
• Agricultural Density: total number of farmers per arable lands
• Agricultural density talks more about a country Welty then their population distribution
• Substance Agriculture: suggests most farming is providing for those close to the farmers
• Lower agricultural density usually causes higher levels of mechanics involved
• Geographers say that providing for a clustered group is easier them for a dispersed group
• An increase in population density can lead to disparities in economic growth between areas
• As the population grows, the harder strain is put on the natural resources
• Carrying Capacity: the maximum population size an environment can sustain
• Larger population densities can lead to environmental degradation
• Population Pyramid: graphs that show age-to-sex distribution
• Population pyramids can help determine the goods and services needed in a particular area
• Looking at different scales can help us to get a better understanding of population data
• Birth rates decline during economic hardships, but increase during economic growth
• I’m places where women marry young and have large families, birth rates will be higher
• Demographics: data that talks about the structures and characteristics of human population
• Fertility effects the growth or decline of a place, so the data can be studied. The data can be used for planning healthcare and other budgeting
• Crude Birth Rate(CBR): the number of births per 1,000 people
• CBR doesn’t account for all poss factors such as working men
• Total Fertility Rate(TFR): the average number of children a women in a specific place will give during her childbearing years (15-49)