Name ______Period ______Date ______

Unit 10:Populationsand Human Ecology STUDY GUIDE

You can write on this sheet or on another sheet of paper. FILL IN THE FOLLOWING BLANKS WITH THE PROPER DEFINITION and/or DESCRIPTION:

Populations can be described in terms of three things:

  1. Population size = ______
  2. Population density = ______
  3. Population dispersion =______
  4. The 3 types of dispersion are (provide definition & example):
  5. Random = ______
  6. Benefit is ______
  7. Uniform = ______
  8. Benefit is to reduce ______
  9. Clumped = ______
  10. Growth rate = ______
  11. Occurs when new individuals are added by ______or ______

Or when individuals are lost due to ______or ______

  1. The two kinds of population growth are:
  1. ______growth; ______-shaped
  2. Defined as: ______
  3. Occurs when there’s plenty of resources, little competition and predation
  4. ______growth; ______- shaped
  5. Defined as: ______
  6. Occurs when the population levels off at carrying capacity
  1. Carrying capacity = ______
  2. Factors that limit population growth are:
  1. ______factors (related to pop size)

Examples: ______

  1. ______factors (control pop regardless of size)

Examples: ______

  1. Reproductive potential = ______
  1. High reproductive potential is seen in organisms like: ______

______

  1. There are 2 kinds of organisms with respect to population growth:
  1. r-selected organisms = ______

Examples: ______

  1. K-selected organisms = ______

Examples: ______

  1. r-selected organisms tend to mature ______(rapidly or slowly), have ______(many or few) offspring, and are opportunistic (invade new areas).
  2. K-selected organisms tend to mature ______(rapidly or slowly), have ______(many or few) offspring, and care for their young.
  3. Many r-selected organisms are ______species (what we call invaders), while many K-selected organisms are ______(close to extinction).
  4. Demography = ______
  5. Developed countries examples:______
  1. Have HIGH or LOW birth rate? ______
  1. Developing countries examples:______
  1. Have HIGH or LOW birth rate? ______
  1. Factors that affect a country’s population growth include:
  2. Type of ______- the more agricultural, the more children people tend to have
  3. Status of ______- if given rights to education and work, tend to have fewer children
  4. Cultural beliefs, like the importance of having ______
  5. Religious beliefs
  6. Properties used to predict future population changes:
  1. Age structure = ______

Developing countries’ age structure diagrams look like ______

Developed countries’ age structure diagrams look like rectangles; more even among age classes

  1. Fertility rate = ______
  2. Migration
  3. Doubling time = ______
  1. What is the Rule of 70? ______
  2. Demographic Transition = ______

______

  1. Stage 1: pre-industrial/ agricultural economy: HIGH birth rate and HIGH death rate
  2. Stage 2: population explosion due to scientific & industrial improvements; ______birth rate, low death
  3. Stage 3: Birth rates slow, so growth slows overall
  4. Stage 4: Growth rate ______or declines

Current human population ~ 7.5 billion

  1. Problems with human population growth include (name at least 5 problems):
  2. ______
  3. ______
  4. ______
  5. ______
  6. ______
  7. How do governments slow down population growth: ______

______