Site-specific annual net primary productivity (ANPP) as estimated from [40] and the percent composition of plant functional groups by site.

*WM = Wickenburg Mts.; NW = New Water Mts.; ET = Eagletail Mts.; ST = San Tan Mts.; MM = Maricopa Mts.; WSB = West Silverbell Mts.; MDF = Mother’s Day Fire (Rincon Mts.); JAV = Javelina site (Rincon Mts.).**Perennial plant cover is presented as the sum in meters of canopy cover intercepting line transects, and herbaceous plant cover is presented as the area (cm2) occupied of frame transects. Where cumulative percentages do not add to 1.0, the difference is made up of unidentified grass or forb sprouts and mosses.***Herbaceous vegetation cover data was pooled across two years.