Figure 6
From: A realized facilitation cascade mediated by biological soil crusts in a sagebrush steppe community
Soil concentrations of ammonium and nitrate 5–10 cm beneath Artemisia, beneath biocrusts in the open, and in the open without biocrusts. Boxplots represent the interquartile range and median, and points represent outliers, and the dashed lines indicate means. Shared letters indicate no statistical difference among treatments and dashed lines show the means.
