HUMAN POPULATION GROWTH

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HUMAN POPULATION GROWTH

• pp. 390-392

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• Exponential model of growth
• larger it gets the faster it grows primarily
  density-independent

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HISTORY

• Hunter-gatherer lifestyle
• 500 kya? 10 kya
• Development of Agriculture increased and
  stabilized food supply
• Population Explosion decline in death rates

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POPULATION GROWTH TODAY

• Stastistics
• Growing 1.5 annually
• 1/3 of world population is malnourished
• most humans live on 10 of land
• ½ live within 300 miles of seas and ocean

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• Key to success
• Increased carrying capacity of the areas in which
  we live
• defeated most limiting factors (i.e. lack of
  food)
• Improved healthcare (prenatal and geriatric)
• Improved sanitation
• Disease control
• Education

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DEMOGRAPHIC TRANSITION MODEL

• Economic and social progress affects growth rate
• Developing country poorer with fast growing
  populations (80)
• Developed country modern/industrialized (20)