Standardized macroinvertebrate bio-area per site and pigmentation. Bio-area in mm2 per 100 ML discharged groundwater and at log10(y+1)-scale. The thick horizontal lines show the median, the interior of each box represents the interquartile range (IQR) and the vertical lines represent minima and maxima, respectively (1.5 * IQR).

 
 
  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