"Subclassing and Composition – A Pythonic Tour of Trade-Offs", Hynek Schlawack
Final Research Presentation
1. The Effects of A Sediment Trap on Benthic Macroinvertebrate Populations in the North Branch of the Boardman River Whitney Nelson, Calvin College Adviser: Daniel Ippolito, Anderson University
18. Simpson’s Indices and Chi-Squared Test Upstream Downstream Taxa Richness (# of Morphospecies) 77 89 # of individuals 5611 6813 Dominance (D) 0.1099 0.0844 Simpson (1-D) 0.8901 0.9156
19. “ EPT” Ratio Index and Chi-Squared Values Upstream Downstream EPT ratio Average 21.1 31.4 "EPT" ratio index. The sum of E + T+ P / # Chronomid larvae (Crawford and Lenat, 1989)