# how do you work out the percentage cover of a sampleWatch

Thread starter 9 years ago
#1
hi as my thread title says how do you work out the percentage cover of a sample, and this is ocr as biology by the way and i am really stuck

help would be appreciated
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Thread starter 9 years ago
#2
anyone?
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9 years ago
#3
Percentage cover is usually used with quadrats when investigating populations. It is the estimate of the area a plant species covers in a quadrat, so if you have 100 little squares in 1 quadrat, then you count the squares in which the plant species is present = you count a square only when it is half or more covered by the plant. So if the plant is in about 25 squares within the quadrat you can say the plant covers 25% of the area.
1
Thread starter 9 years ago
#4
(Original post by Kurzyk)
Percentage cover is usually used with quadrats when investigating populations. It is the estimate of the area a plant species covers in a quadrat, so if you have 100 little squares in 1 quadrat, then you count the squares in which the plant species is present = you count a square only when it is half or more covered by the plant. So if the plant is in about 25 squares within the quadrat you can say the plant covers 25% of the area.
thanks but i still don't get it, how would you work it out from looking at a data?
0
9 years ago
#5
I'm doing AQA biology and we never had to work it out from the data to be honest.
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Thread starter 9 years ago
#6
oh right well im doing ocr....but thanks anyway! anyone else who can help?
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9 years ago
#7
Can you post the data? I'm not exactly sure what it would look like? Thanks!

If there is any way you can work out the cover as a percentage of the total cover then that is what you need to do. (i.e. value/total cover x 100)
:-D
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Thread starter 9 years ago
#8
thanks you've helped me
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1 year ago
#9
Hi
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1 year ago
#10
Hi
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1 year ago
#11
Ki
(Original post by Rayan Nasir)
Hi
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