Fig. 4

Mean (+SD) wet mass (a), evenness (b), and species richness (c) of assemblages under different disturbance regimes in the middle (black squares) and at the end (white squares) of the 150-day manipulation period. Stippled horizontal line indicates mean evenness and species richness prior to manipulations. Since the factor “timing of disturbance events” was not significant (at α > 0.25), we pooled the data. Treatments sharing a capital or small letter were not significantly different in the middle and at the end of the manipulation period, respectively. Letters were omitted for non-significant response variables. Note discontinuous ordinate in 4B