9: Sampling Techniques

What does "abundance" describe in an ecosystem?

• The area where a species is found

• The number of different species

• How many members of the species live throughout the ecosystem

• The types of food available

Which of the following is NOT a type of sampling technique shown in the image?

• Transects

• Capture-recapture

• Quadrats

• Random Sampling

What is the purpose of using quadrats in sampling techniques?

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NGSS.MS-LS2-4

What is the main advantage of using transects in sampling?

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What is the main purpose of the capture-recapture method?

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which sampling technique is most suitable for studying the distribution of trees in a forest?

• Transects

• Capture-recapture

• Quadrats

• Random Sampling

What is the alternative method to continuous sampling in a transect study?

• Interval sampling

• Random sampling

• Cluster sampling

• Systematic sampling

In interval sampling, what is recorded?

• Organisms that touch the string at marked intervals

• All species touching the line

• Only plants touching the line

• Only animals touching the line

What are transects primarily used to sample?

• Plant populations

• Animal populations

• Insect populations

• Microbial populations

What is done after placing the quadrat and counting the organisms?

• The process is repeated several times and an average is taken

• The quadrat is moved to a new location

• The data is immediately recorded

• The area is measured