Presentation is loading. Please wait.

Presentation is loading. Please wait.

The Human Population: Growth, Demography, and Carrying Capacity G. Tyler Miller’s Living in the Environment 12 th Edition Chapter 11 G. Tyler Miller’s.

Similar presentations


Presentation on theme: "The Human Population: Growth, Demography, and Carrying Capacity G. Tyler Miller’s Living in the Environment 12 th Edition Chapter 11 G. Tyler Miller’s."— Presentation transcript:

1 The Human Population: Growth, Demography, and Carrying Capacity G. Tyler Miller’s Living in the Environment 12 th Edition Chapter 11 G. Tyler Miller’s Living in the Environment 12 th Edition Chapter 11 Dr. Richard Clements Chattanooga State Technical Community College Dr. Richard Clements Chattanooga State Technical Community College

2 Key Concepts  Factors affecting human population size  Managing population growth  Human population problems

3 Factors Affecting Human Population Size  Population change equation  Zero population growth (ZPG)  Crude birth rate (BR)  Crude death rate (DR) Refer to Fig p. 239 Population Change Population Change = = (Births + Immigration) – (Deaths + Emigration)

4 Natural Rate of Increase <1% 1-1.9% 2-2.9% 3+% Data not available Annual world population growth Fig. 11.3, p. 240

5 Births per woman < No Data Fertility Rates  Replacement-level fertility  Total fertility rate (TFR) Fig. 11.8, p. 242

6 Factors Affecting BR and TFR  See bulleted list in text p. 243  US BR’s and TFR’s Births per thousand population Demographic transition Depression Baby boom Baby bust Echo baby boom World War II Year Fig , p. 243 see Fig p. 243

7 Infant deaths per 1,000 live births <10 <10-35 <36-70 < <100+ Data not available Factors Affecting DR  Life expectancy  Infant mortality rate (IMR) Fig , p. 246

8 Factors Affecting Natural Rate of Increase Developed Countries Rate per 1,000 people Year Rate of natural increase Crude birth rate Crude death rate Rate of natural increase = crude birth rate = crude death rate Developed Countries Rate per 1,000 people Crude birth rate Rate of natural increase Crude death rate Year Fig , p. 245

9 Ages 0-14 Ages Ages Rapid Growth Guatemala Nigeria Saudi Arabia Rapid Growth Guatemala Nigeria Saudi Arabia Slow Growth United States Australia Canada Slow Growth United States Australia Canada Male Female Zero Growth Spain Austria Greece Zero Growth Spain Austria Greece Negative Growth Germany Bulgaria Sweden Negative Growth Germany Bulgaria Sweden Population Age Structure Fig a, p. 247

10 Solutions: Influencing Population Size  Migration  Environmental refugees  Reducing births  Family planning  Empowerment of women  Economic rewards and penalties

11 The Demographic Transition Low High Relative population size Birth rate and death rate (number per 1,000 per year) Birth rate and death rate (number per 1,000 per year) Stage 1 Preindustrial Stage 1 Preindustrial Stage 2 Transindustrial Stage 2 Transindustrial Stage 3 Industrial Stage 3 Industrial Stage 4 Postindustrial Stage 4 Postindustrial Low growth rate Low growth rate Increasing Growth growth rate Increasing Growth growth rate Very high growth rate Very high growth rate Decreasing growth rate Decreasing growth rate Low growth rate Low growth rate Zero growth rate Zero growth rate Negative growth rate Negative growth rate Birth rate Total population Death rate TimeTime Fig , p. 255

12 Case Study: Slowing Population Growth in India  Poor planning  Bureaucratic inefficiency  Low status of women  Extreme poverty  Lack of support Generally disappointing results:

13 Case Study: Slowing Population Growth in China  Economic incentives  Free medical care  Preferential treatment  Intrusive and coercive  Locally administered Generally positive results:

14 Cutting Global Population Growth  Family planning  Reduce poverty  Elevate the status of women


Download ppt "The Human Population: Growth, Demography, and Carrying Capacity G. Tyler Miller’s Living in the Environment 12 th Edition Chapter 11 G. Tyler Miller’s."

Similar presentations


Ads by Google