sampling habitats

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4 Terms

1
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stratified samping

  • divide habitat into sections and then random within the sections

  • strength=diff areas of the habitat are sample, not underrepresented

  • limitation=could lead to over representation of one area

2
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homogenous

  • random (grid and number generator)

  • strength=data not biased by selective sampling

  • limitation=may not cover all areas of habitat, underestimate

3
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systematic sampling

  • belt transect

  • quadrate placed along the line

  • interrupted or continous

  • strength=when habitat shows gradient in environmental factors

  • limitation=only species on the belt are recorded=underestimate

4
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