Sampling locations and macroinvertebrate occurrences A map of the main aquifer types in Switzerland (BAFU 2017) and the sampling sites (total n = 346). Filled circles indicate sites where macroinvertebrates were found and open circles mark sites where no macroinvertebrates were found. Geodata from the Swiss Federal Office of Topography B number of spring boxes (total n = 346) where each major macroinvertebrate group was found.

 
 
  Part of: Schneider AS, Knüsel M, Altermatt F (2023) Assessment of occurrence, diversity, and biomass of macroinvertebrates in Swiss groundwater systems using citizen science data. Subterranean Biology 46: 147-164. https://doi.org/10.3897/subtbiol.46.112569