Figure 3From: Regional-scale relationship among biological soil crusts, invasive annual grasses, and disturbanceRelationship between cattle disturbance and biocrust cover. Cattle disturbance is ranked based on age and frequency of scat and tracks. Relationship curve is plotted based on the predictor-rich generalized additive model (GAM; p < 0.00001). Points are jittered slightly to improve visibility of overlapping points.Back to article page