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Journal of the Day. Why is it important to know who is in your country? (8 sent). Population & Urbanization. Chapter 16. Demography. Ch. 16.1 P. 530-535 Learning Objective: Learn the three processes of population: fertility, mortality, migration. Demography.
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Journal of the Day • Why is it important to know who is in your country? (8 sent)
Population & Urbanization Chapter 16
Demography Ch. 16.1 P. 530-535 Learning Objective: Learn the three processes of population: fertility, mortality, migration
Demography • Definition: The scientific study of population • Why do people study populations? • It affects the social structure, especially in crowded areas • Look for patterns in order to predict behavior • Plan ahead for the future based on population shifts
Population • Definition: group of people living in a specific geographic place at a specific time • Factors of population: • Number of people (size) • Distribution (where & how are they located) • Composition (groups) • Ages in population (age structure)
Three Population Processes • Changes in population occur due to: • Fertility (births) • Mortality (deaths) • Migration
Fertility (births) • Definition: number of children born each year • Measured by crude birthrate: (approximate) number of live births per 1,000 people • Fertility rate: births per 1,000 women age 15-44 • Total fertility rate: avg. kids born in a woman’s life • Fecundity: highest number of kids a woman can have in a lifetime (~15)
Mortality (deaths) • Life Span: longest age humans can survive • Life Expectancy: average age a person of a certain population can expect to live to • Measured by crude death rate: approximate number of deaths per 1,000 members • Infant mortality rate: deaths of children under the age of 1 • Important because children are first to suffer from poor health conditions
Why are fertility & mortality rates important for sociology? • Gives general idea of the health of a population • Availability of food & health care • Distribution of disease • Easily illustrates certain social factors • Age at marriage • Economic development • Education status • Attitudes towards reproduction and contraception
Migration • Def: movement of people from one area to another • Emigrate: to LEAVE a country/place • Immigrate : to COME TO a country/place • You emigrate FROM one country and immigrate TO another country • Net migration: people entering – people leaving • Net migration for Bahrain: +22, 081 (2012)
Opening Discussion What’s going on in the world?
What are reasons people immigrate to new, and often times, strange locations? • What effect does migration have on the receiving nation? • What are the benefits and side effects of a: • Closed immigration policy • Open immigration policy
Migration Assignment • Find a CURRENT (in the last month) news article discussing HUMAN migration patterns. • Print the article • Write a 15 sentence summary • Which area/country are they discussing? • Why are people leaving? • Where are they going to?
Journal • If the population goes unchecked (continues to grow), what problems would societies, and the world, face? (8 sentences)
World Population Ch. 16.2 P. 536-546 Learning Objective: Understand population pressure and changes on a global scale
Population Growth • Current population: 7.2 billion people • Year AD 1: ~250 million people • AD 1650: 500 million (doubled) • AD 1800: 1 billion • AD 1930: 2 billion • Doubling time: time needed for a population to double; typically takes fewer years to double as the population gets bigger • http://www.worldometers.info/world-population/
Reasons for Growth • More population to increase the population • Better nutrition and access to food • Better medical care • More education • Engineered plants, animals, and buildings to withstand natural events
Problems with Growth • Thomas Malthus (1798): • Population will outpace food supply • Poor have larger families and any additional income would incur more births • Overcame assumption with ability to grow more food (utilizing scientific discoveries and changing previous habits
Controlling the Population • Government decisions to halt population increase in their countries • How? • Family planning services (birth control, education) • Sterilization programs • Disincentives (being punished or not receiving rights/privileges for not following rules) • Fines
China’s One Child Policy • Rural families allowed to have 2 children if first is a female or disabled • Ethnic minorities exempt • Only child parents allowed to have 2 kids • Originally started in 1970s as a 2-child policy to reduce the strain on public services • Fines vary as it is a formula based on individual income
How do government decisions in your personal life affect the larger society? • Do they (gov’t) have the right to interfere with personal privacy?
Population Pyramids • Purpose: shows the age and sex of a population • Helpful to show dependents (<15 & >64)
What problems arise when there is a “graying” of the population (lots of older people)? • What problems are there when there are a lot of young dependents? • What services will be needed to support old and young dependents?
Journal • What are pros and cons of living in a city? (8 sent.)
The Urban Transition Ch. 16.3 P. 548-554 Learning Objective: Why do cities develop and what problems arise?
Push & Pull • Push factors: • Why people leave a place • Pull factors: • Why people move to a new location
Why Cities Develop • Consider where cities spring up • Why did New York, Boston, London, Paris, Baghdad, Cairo, Istanbul become such large and important cities?
Overurbanization • Too many people come to the city • Unable to supply people with jobs or housing • Services become overwhelmed
Central City Problems • Wealthy people able to move away from inner city to SUBURBS • Businesses and jobs follow the people out to suburbs • Leaves decrepit buildings • Minorities and low income people cannot escape central city • No money to support those who need it most
City and Soc • Industrial Revolution saw people move from agricultural/rural areas to urban areas (cities) • Sociology created by understanding challenges that present itself when various people share a common space
Urban Ecology Ch. 16.4 p. 556-560 Learning Objective: The effect of city design
Urban Ecology • Relationships between people and their city environment • 4 theories of city growth • Concentric zone • Sector • Multiple nuclei • Peripheral
Concentric Zone Theory • Growth starts in the central city and circular areas grow out from there • “Bull’s Eye Model” or “Burgess Model” • “Heart” of city is CBD (central business district) • Made up of major gov’t/private buildings and most important businesses • Highly influenced by those with money (able to buy land and use it for whatever their purposes are) • Example: Chicago
Concentric Zones • Zone in Transition: Lots of change occurring • Invasion of the CBD into the next zone • Residents leave as more businesses move in • Zone doesn’t always become incorporated into CBD • Workingmen’s Homes: “Blue collar” jobs • Residential Zone: Middle and Upper Middle Class living (“White collar” professions) • Commuter’s Zone: Upper class living
Sector Theory • Emphasizes transportation routeswhich come from CBD to different zones • Growth of urban activities expand along roads, rivers, and railways • Does NOT take into account the automobile which makes trade easier • Example: Seattle, San Francisco