Collecting ecological data

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  • Created by: RGV17
  • Created on: 12-08-16 18:05
What is sampling?
Counting numbers in a small area and using it to estimate the total.
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What is a common way of sampling organisms?
Using a quadrat- usually subdivided into smaller squares
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How does the number of quadrats counts affect the results?
The greater the number of quadrats counts, the more reliable the estimate of the size of the population which also increases validity of the population estimate?
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What is random sampling?
A set of random numbers are generated which are used as coordinates on a grid. The grid is marked out and the quadrat is used at each of the random coordinates.
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What is systematic sampling?
A grid is marked out and the quadrats are used at points which are evenly-spaced.
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Other cards in this set

Card 2

Front

What is a common way of sampling organisms?

Back

Using a quadrat- usually subdivided into smaller squares

Card 3

Front

How does the number of quadrats counts affect the results?

Back

Preview of the front of card 3

Card 4

Front

What is random sampling?

Back

Preview of the front of card 4

Card 5

Front

What is systematic sampling?

Back

Preview of the front of card 5

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