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8-1 How Populations Change in Size

8-1 How Populations Change in Size. Page 197. A. What is a population?. 1. Set of individuals within a species living in the same place at the same time. How many populations are in this picture?. B. Properties of Populations.

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8-1 How Populations Change in Size

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  1. 8-1 How Populations Change in Size Page 197

  2. A. What is a population? • 1. Set of individuals within a species living in the same place at the same time.

  3. How many populations are in this picture?

  4. B. Properties of Populations • 1. Density is the number of individuals per unit area or volume.

  5. B. Properties of Populations • 2. Dispersion describes arrangement of individuals in a population; can be even, clumped, or random.

  6. even, clumped, or random?

  7. C. How Does a Population Grow? • 1. Populations gain individuals with each birth, and lose individuals with each death.

  8. C. How Does a Population Grow? • 2. The % change in a population is the growth rate. • Change in Population Size= Births- Deaths

  9. Change in Population Size= Births- Deaths

  10. D. How fast can a population grow? • 1. The reproductive potential of a population determines the maximum # of offspring that each member can produce.

  11. D. How fast can a population grow? • 2. If a population experiences exponential growth, it will grow faster and faster.

  12. E. What Limits Population Growth? • 1. Carrying Capacity is the population size where birth and death rates are equal.

  13. What type of growth? (Graph the Data)

  14. What type of growth? (Graph the Data)

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