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Unit 1 ­ Practical Skills: Species Diversity and Population Sampling
The Simpson Diversity Index is a way of measuring diversity in an area.
N = Total number of all species found
n = Total number of specific species found

Richness = amount of different species in a sample (regardless of…

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Light Traps ­ for collecting moths at night ­ attraction to light
Pitfall Traps ­ pit containing alcohol, which kills and preserves fallen insects
Pooters ­ Basically anything which sucks insects into a container e.g. mouth aspirator/reverse leaf
Sweep Nets ­ Butterfly-catcher like nets which catch insects from air…


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