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Unit #4-Population

Student Websites
Class Calendar
Online HW
APES Themes and Topics
Mr Stephens' Homepage
Semester 1
Unit 1-Intro to APES

Unit 2-Earth Systems and Resources

Unit 3-The Living World

Unit 4-Popultations

Semester 2

Unit 5-Land and Water Use

Unit 6-Energy Resources and Consumption

Unit 7-Air Pollution

Unit 8-Water Pollution

Unit 9-Global Change

Unit 10-APES Test Review

Unit 11-Final Projects


Main Concepts

Central Cases:

  • "China's One-Child Policy " p207-208

The Science Behind the Story:

  • "Measuring the Environmental Impact of Human Population" p212-213
  • "Fertility Decline in Bangladesh" p222-223

A. Population Biology Concepts

Topic Pages Questions Add'l Resources
Population ecology 125-132 p137 #7,8  
carrying capacity 130 p229 #2; p137 #9, #3b Carrying capacity,
reproductive strategies 131-132 p137 #10  
survivorship 127-128 None Survivorship Curve Animaiton,

B. Human Population

1. Human population dynamics

Topic Pages Questions Add'l Resources
Historical population sizes 209 p229 #1, NOVA-Human Numbers Through Time,
distribution 214-215 p230 #10 NOVA-Earth in Peril,
fertility rates 218-219 p230 #7  
growth rates and doubling times 208-209 p229 #6 Exponential growth animation, logistic growth animation,
demographic transition 219-221 p230 #8; p230 #4a, Demographic transition animation,
age-structure diagrams 216-217 p230 #1a Age structure animation,

2. Population size

Topic Pages Questions Add'l Resources
Strategies for sustainability 221-224 p230 #9  
case studies 222-223 p230 #3a  
national policies 209-210, 224-225 p230 #5,6  

3. Impacts of population growth

Topic Pages Questions Add'l Resources
Hunger 225 p230 #2a  
disease 227-228 None  
economic effects 225-226 p231 #1-5 CEF  
resource use 226 p229 #3; p230 #1-4 IGD Easter Island Video,
habitat destruction 211-213 p229 #4-5  


Human Pop over time graph

This graph shows the explosive growth of human population. This growth can be attributed to technological advances: agriculture, the industrial revolution, the green revolution, improved health care, better sanitation, improved sources of drinking water, etc. All this growth puts tremendous pressure on Earth's natural resources and our environment.

Population Density Map

In the map above red represents large populations of people. A few things to note about the map: people are concentrated in the mid-latitudes, Asia is the most populated continent, people are concentrated around urban centers, and China and India are the most populated countries in the world.

Population Pie Graph

The global population pie above shows the world's human population distribution in graphical format.


Main Questions

1. How and why has the human population changed over time?

2. How has human population, affluence, and technology affected the environment?

3. How does personal income, education, family planning programs, and the status of women affect populaiton dynamics?


Chapter 8

age distribution, age structure pyramid, birth rate, carrying capacity, cornucopian economics, death rate, demographic fatigue, demographic transition, demography, emigration, density dependent factors, exponential growth, density independent factors, HIV/AIDS, immigration, industrial stage, IPAT model, life expectancy, K-selected species, limiting factors, natural rate of population change, neo-Malthusians, one-child policy, population, population density, population distribution, population growth rate,  post-industrial stage, poverty, pre-industrial stage, quality of life, r-selected species, replacement fertility, total fertility rate (TFR), Thomas Malthus, transitional stage, type I survivorship curve, type II survivorship curve, type III survivorship curve


Additional Readings


  • Exponential Growth


  • "World Population over Time" Produced by Population Connection.
  • Human Population Dynamics-Part of the Habitable Planet Series by Harvard Center for the Environment broadcast by Annenberg (28:26) (Free Sign in Required)
    • Viewing Guide
  • "China the Consumption Machine" (12:00)-Disc 1, Chapter 9 of Planet in Peril
  • "Social Security in Crisis"-ABC News (7:03)-From the online text or text CD.
  • Life After People-The History Channel examines the question-what would happen to our planet if the entire population of homo sapiens dissappeared?
    • Viewing Guide
    • Fate of the Animals-What will happen to dogs, cats, mice, zoo animals, and roaches?