Simple linear regression models of caddisfly species richness (dependent variable) based on the total number of combined collections and samples taken (independent variable) for the two time periods of the study based on all geographic and ecological subunits of Indiana (Suppl. material 2).

 
 
  Part of: Houghton DC, DeWalt RE (2024) Updated checklist, habitat affinities, and changes over time of the Indiana (USA) caddisfly fauna (Insecta, Trichoptera). ZooKeys 1216: 201-218. https://doi.org/10.3897/zookeys.1216.129914