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Estimating Daisy Population Density Using Quadrats

Learn how to estimate daisy populations in a field using quadrats and sampling methods. Practice calculating percentage density and cover to study plant populations effectively. Discover random, stratified, and systematic sampling techniques in ecology.

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Estimating Daisy Population Density Using Quadrats

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  1. How many daisies?

  2. How did you estimate the number of daisies? Did you try to count them all? Or did you use another method? See if this will help…

  3. Using a grid like this helps you to estimate the number of plants in an area. But… If you were asked to count the number of daisies in a field, this would be impractical. Instead we use quadrats.

  4. Random sampling

  5. Stratified Random Sampling

  6. Systematic sampling

  7. Nowlet’sgo try it! I luuuvvvs me someecology!

  8. STARTER: Calculatethepercentagedensity of Plant A in thefollowingexperiment: 0.5m 25m 25m Site 2 0.5m Site 1 Quadratused 30m 25m

  9. Percentage Frequency • Percentage of the total quadrat number that the species was present in.

  10. Nowlet’sgopracticecalculatingpercentagecover!! I luuuvvvs me someecology!

  11. Complete Q 11-13 in your booklet

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