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In teams of two, students collect samples from one or two different environments -- agricultural fields, sports turf areas, lawns, forest floor, wetland/pond margin, greenhouse, etc. They construct a Berlese funnel apparatus, process their two samples, identify and photograph (under a microscope) the organisms they isolate. The class aggregates their data from all the different environments, calculates a Simpson's diversity index for each environment, and uses this value to compare the diversity of the different environments.
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