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For more information, please see full course syllabus of AP Environmental Science
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The Dynamic Human Population

  • Key terms include: population, population dynamics, species, demography, abundance, birth rate, death rate, (including crude birth rate and crude death rate), growth rate, age structure, fertility, general fertility rate, total fertility rate, age-specific birth rate, cause-specific death rate, morbidity, incidence, prevalence, case fatality rate, rate of natural increase, doubling time, infant mortality rate, life expectancy, and GNP per capita
  • With the history of the human population, there are four main phases: hunter/gatherer, rise in agriculture, Industrial Revolution, and the Modern Era. The growth of our human population has recently been exponential
  • Doubling time for a human population can be calculated assuming exponential growth. Logistic growth involves an inflection point and the concept of carrying capacity
  • Age structure diagrams show the proportion of each age group in a population. The typical types include pyramid, column, bulging column, and inverted pyramid
  • The demographic transition is a three-stage pattern of chance that occurs in developed countries, and it inevitably results in a decline in population growth
  • Maximum lifetime and average life expectancy vary by country and they vary from year to year. Factors influencing these rates include acute disease, chronic disease, economics, and health care availability
  • The human population’s effect on Earth is a function of the number of people and each person’s individual impact on the Earth. The key is to improve our standard of living worldwide while slowing population growth. The human carrying capacity on Earth is not known, but there are plenty of theories about when we’ll reach it.
  • Zero-population growth may inevitably be achieved if women wait to have their 1st born child until later, women/men use birth control consistently and correctly, and expand national programs to incentivize and encourage having less children

The Dynamic Human Population

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Populations Introduction 0:05
    • Population Dynamics
    • Population
    • Species
    • Demography
    • Abundance, Birth and Death Rate, Growth Rate, Age Structure
  • Human Population Curves 2:28
    • Four Phases
    • Hunter and Gatherer
    • Agriculture
    • Industrial Rev
    • Modern Era
    • Paris Example
  • Population Key Terms 8:26
    • Crude Birth, Death, and Growth Rate
    • Fertility
    • General Fertility Rate
    • Total Fertility Rate
    • Age-Specific Birth rate
    • Cause-Specific Death Rate
    • Morbidity
    • Incidence
    • Prevalence
    • Case Fatality Rate
    • Rate of Natural Increase
    • Doubling Time
    • Infant Mortality Rate
    • Life Expectancy at Birth
    • GNP Per Capita
  • Human Population Growth 15:51
    • Doubling Time
    • Logistic Growth
    • Three Possible Futures
  • Calculating Population Change 20:23
    • Population
    • Growth Rate
    • Doubling Time
  • Age Structure 23:03
    • Proportion of Each Ages Group in the Population
    • Examples
  • Demographic Transition 27:31
    • Three Stage Pattern of Change in Birth/ Death rates in Developed Nations
    • Crude Rate Over Time and Population Size Over Time
  • Life Expectancy and Death 32:01
    • Maximum Lifetime vs. Life Expectancy
    • Acute Disease
    • Chronic Disease
    • Crude Death Rate Differences
  • Human Population's Effect on Earth 35:02
    • Factor of the Number of People and Each Person's Effect
    • Formula
    • Key Is Improving the Standard of Living
  • Human Carrying Capacity 39:02
    • Max Number of People That Can Live on Earth
    • Limited by These Factors
    • Estimated in Different Ways
  • Zero Population Growth 45:15
    • Possible?
    • Several Approaches