Investigating populations

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Process of random sampling with quadrats
Lay out 2 tape measures at right angles along 2 sides of area - obtain co ordinates randomly - place quadrat at intersection of each pair of coordinates
1 of 5
Process of using a transect
Tape stretched across ground in straight line - organisms that cross over are recorded
2 of 5
What are the 2 ways we measure abundance?
Frequency & Percentage cover
3 of 5
Describe how you would carry out the mark-release-recapture technique?
Capture sample - mark & release again - mark the fish using a highlighter (not harmful) - take a second sample and count - use equation
4 of 5
What is the equation for mark-release-recapture?
Number in sample 1 x number in sample 2 divided by number marked in sample 2
5 of 5

Other cards in this set

Card 2

Front

Process of using a transect

Back

Tape stretched across ground in straight line - organisms that cross over are recorded

Card 3

Front

What are the 2 ways we measure abundance?

Back

Preview of the front of card 3

Card 4

Front

Describe how you would carry out the mark-release-recapture technique?

Back

Preview of the front of card 4

Card 5

Front

What is the equation for mark-release-recapture?

Back

Preview of the front of card 5

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