Figure 1. Comparisons of percentage of cover between control and drought treatment plots for the four biocrust functional groups, bare soil and the overall late successional biocrust cover. (A) Bare soil cover. (B) Lightly-pigmented cyanobacterial cover. (C) Darkly-pigmented cyanobacterial cover. (D) Lichen cover. (E) moss cover. (F) Late successional cover (the sum of darkly-pigmented cyanobacterial cover, lichen cover, and mosses cover).P -values of treatment effects within blocks are indicated when significant.