Fig. 1.

Mean relative summer growth potential and standardized recovery biomass after dehydration to 7·9 % soil water content as predicted by linear model fit. Bars are 95 % confidence intervals; letters indicate significant differences among species corrected for multiple comparisons using Tukey’s post-hoc test (P < 0·05). An RSGP of 1 indicates that summer productivity under non-limiting water conditions equalled optimal growing season productivity, while 0 indicates full summer dormancy. An SRB of 1 indicates that productivity after drought equalled productivity in non-water-limited pots of the same species. NP, Nassella pulchra; KM, Koeleria macrantha; EGH, Elymus glaucus; EE, Elymus elymoides; FI, Festuca idahoensis; MC, Melica californica; PS, Poa secunda; PB, Poa bulbosa.