Population Density
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Population Density

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Population Density Population Density Presentation Transcript

  • YOU NEED A CALCULATOR!!!!! Start-Up: What is the biological level smaller than a community? How is it defined?
  • Characteristics of Populations Population – group of individuals of a single species that live in the same general area – rely on the same resources & face similar challenges Population size = total number of individuals Population density = number per unit area
  • Sampling Techniques to Estimate Population Density & Size 1. Quadrats 2. Indirect Counting
  • 3. Mark-recapture method Total population = (# in first capture)(# in second capture)‏ # of marked animals recaptured