Lec 04

Question 1

Difference B/T Population Geography and Demographics?

Answer 1

Population Geography: seeing how a given area is affected by different factors at a certain time.

Demographics: study of human populations and distribution.

ex. Large populations affect coming generations via the economy.

Question 2

Describe the overall concept of population growth?
How has it changed/will change over time?

Answer 2

More births than deaths (9:12). [Seconds]
Population growth is exponential and began slowly. Large growth in 19th and 20th centuries.

Humanity is restricted to land mass (30% of the earth)
Estimated 10b < people by 2050.

Question 3

What is overpopulation, Carrying capacity, and the logistic growth graph of population?

Answer 3

Overpopulation: a judgement given to an environment that’s unable to support its population. Typically looks at: Degrading ecosystems + impact on human health.

Carrying Capacity: a term used to see the max amount of people that can be supported based on sustained basis + current technology.

Logistic Growth Graph: An extension of the exponential graph except flattens out at the top right under carrying capacity

Question 4

List some population trends in the 21st century.

Answer 4

• Sub-Saharan Africa population doubles by 2050.
• Asia takes up ~5billion people.
• Several countries shrinking by 15%