SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Place it where you like
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Divide the sample area into a grid and use a random number generator to choose a square.
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Throw the quadrat so it’s random
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Divide the sample area into a grid and choose a square.
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Detailed explanation-1: -For instance, always place the quadrat right over the transect point, which is easy to remember although the transect tape might obscure some organisms, or always place the (e.g. bottom left) corner of the quadrat over the transect point.
Detailed explanation-2: -What is the best way to sample sessile organism with quadrats? Randomly place quadrats in as many locations as possible.
Detailed explanation-3: -The usual procedure for randomly positioning quadrats is this: A base line is marked out along the edge of the habitat using a measuring tape. It must extend all the way along the edge of the habitat. Random numbers are obtained using either a table or a random number generator on a calculator.
Detailed explanation-4: -Divide the area to be sampled into a grid using measuring tapes placed at right angles to each other. Use random numbers to generate coordinates within the grid on which to place the quadrats. Place a quadrat at each coordinate. More items