chapter 8 key topics 1.calculations of growth rate 2.types of growth & species survivorship...
TRANSCRIPT
Chapter 8 Key Topics1.Calculations of growth rate2.Types of growth & species survivorship3.Population flunctuations based on cycles and
density factors4.Historical perspective of human population
growth5.A countries age structure - what influences it -
how it influences the countries pop. Growth6. Immigration laws and the future of
immigration here and in the world
Population Change
Chapter 8
Earth’s Carrying CapacityHow Many?
Only In China?
The Human Population - Demographics
Current Population Numbers
Check out:
http://www.census.gov/main/www/popclock.html
1800 1 billion people1930 2 billion people1950 2.5 billion people1960 3 billion people1975 4 billion people1987 5 billion people1999 6 billion people2011 7 billion people
2009 - A staggering 97 percent of global growth over the next 40 years will happen in Asia, Africa, Latin America and the Caribbean.
The increase from 6 billion to 7 billion is likely to take 12 years, as did the increase from 5 billion to 6 billion. Both events are unprecedented in world history.
World Population
World Population
US Population
Demographics of Countries
Most Populous Countries Insert Table 8.1
Growth Rates
Demographics of Countries
Demographic Stages
Decline?
Transition & Age Structure
Demographics of Countries
Age Structure of Countries
Generalized Age Structure
Demographics of Countries
Examples:
Demographics of Countries
Examples:
Demographics of Countries
Examples:
Demographics of Countries
Developed vs. Developing Countries Demographics Insert Table 8.2 (note
reconstruction)
Demographics of Countries
Developed vs. Developing Countries Demographics
Table 8.2
An Aging Nation
1.Social Security, Health, & Pension designed as a “Pay-as-you-go” system
2.Crime Rates3.Migration4.Educational Status5. Industrial Productivity
Demographics of the US
Africa & Aids
How does an epidemic like AIDS in Africa impact individual countries or villages?
Africa & AIDS
•Lost one or both parents•Infected individuals die within 10 years•Leading cause of death in Africa•2.2 million Vs. 3 million world-wide•Botswana Life expectancy 60 years now 36•Economic, Agricultural, & Social pains