Fig. 3
Larval survival with and without added organic matter. Median survival times (LT50; y axis) are shown for larvae in soil–water extracts combined with soil substrate only (soil only), organic matter only (OM only), or both soil substrate and organic matter (Soil + OM). The boxes show the interquartile range of median survival times, the median is shown as a solid black line, and outliers as black circles