Chapter 53 Animations   Study Guide

Unit 8: Ecology Population Ecology Review
  1. A is a group of individuals of a single living in the same area.
  2. Population (number of individuals per area or volume) results from and of individuals; this may change over time as reflected in the population's .
  3. A population may exhibit different patterns, often delineated by boundaries.
  4. A curve is a graphic way of representing the data in a life table and can be classified into three general types.
  5. In a closed population (no and emigration), the rate of population growth can become exponential.
  6. Eventually this growth slows to a growth when the capacity (K) of the environment is approached, resulting in a (S-shaped) curve.
  7. The finite resources available may lead organisms to make trade-offs between and , reflected in their history traits.
  8. The human population increased slowly until about and then began to grow , until mid-20th century.
  9. Local populations tend to undergo a transition from high birth and death rates to low ones as economies develop. The regional growth patterns are reflected in structure diagrams.
  10. The capacity of Earth for humans can be estimated by the footprint of different populations. At more than 6 billion people, the biosphere is already in ecological .
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