19.5 - Non-random Sampling Flashcards
Differences between random and non-random sampling Non-random sampling techniques Measuring abiotic factors
What is non-random sampling?
Selection based on specific criteria or patterns
What is the difference between random and non-random sampling?
Random removes bias
What is systematic sampling?
Non-random sampling at regular intervals
What is a transect?
Line used for sampling along an environmental gradient
What are the two types of transects?
Continuous belt transects and interrupted belt transects
What are continuous belt transects?
Quadrats placed continuously along a line
What are interrupted belt transects?
Quadrats placed at regular intervals along a line
What abiotic factors can be measured?
Light
What are the advantages of measuring abiotic factors?
Detect rapid changes
How can you investigate the effect of abiotic factors on distribution?
Place transect
