Sunday, June 25, 2017

4.2: Practical: Investigate the Population Size of an Organism in Two Different Areas using Quadrats

QUADRATS: Rectangular frames of known dimensions that can be used to establish population densities by counting and identifying organisms within frame


MEASURING POPULATION OF ORGANISM:

ESTIMATING POPULATION SIZE OF ORGANISM

 Diagram showing How Quadrats are Utilised in the Field

METHOD:

  • Place quadrat randomly within sampling area
  • Count the number of members of the same specieswithin the quadrat
  • Repeat this numerous times within sampling area using the same size quadrat
  • Repeat the process in another area to compare results

CALCULATION:

Equation to Calculate the Approximate Population Size of an Organism:


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12 comments:

  1. VivekJune 1, 2018 at 6:44 AM

    its quadrat not quadrant

    ReplyDelete
    Replies
    1. Grind for the 9October 9, 2019 at 5:12 AM

      ok Vivek Raman, where on this very earth do you see the word "quadrant". I'm afraid that you may have dyslexia

      Delete
    2. UnknownOctober 9, 2019 at 5:38 AM

      Vivek Raman honestly mate, u need to sort that out

      Delete
    3. Grind for the 9October 9, 2019 at 5:56 AM

      trust me geez

      Delete
    4. UnknownApril 7, 2021 at 9:48 PM

      yes Vivek mate, sort it out

      Delete
    5. UnknownApril 25, 2021 at 1:35 PM

      Grind for the 9 hopefully you didn't get a 9

      Delete
    6. UnknownMay 3, 2021 at 8:21 AM

      vivek fella thats not on

      Delete
  2. UnknownJanuary 14, 2019 at 6:44 PM

    Shouldnt it be (sample area/ total area) * Number of organisms found

    ReplyDelete
  3. UnknownApril 13, 2019 at 9:21 AM

    You should just rearrange it to have average organisms per sampled area * the total area (which is the same as (total area/ sample area) * Number of organisms found)

    ReplyDelete

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