sampling

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  • Created by: BeckyXX
  • Created on: 13-10-13 19:43
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  • sampling
    • systematic
      • line/ belt transect
        • looks at patterns of distributions
    • random
      • quadrats
        • 1) grid area
        • 2) allocate coordinates
        • 3) random number pairs
        • 4) position quadrat and repeat
    • sampling methods depend on...
      • accuracy
      • nature of organisms
      • time
      • area
    • mark release recapture
      • criteria
        • dont harm the animals
        • accuracy
        • reliability
        • catch the animals
      • assumptions
        • population does not change
        • there is thorough mixing between samples
        • evenly distributed in their habitat
        • does not affect the organisms normal behaviour

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