Fig. 4
Degradation of a wetland. Percentage of patch and biomass degradation after 150 days for several densities of D. elongatus and three wetland conditions: (A) good, corresponding to 600 g/m2 of initial vegetal biomass, (B) moderate, with 450 g/m2, and (C) poor, with 210 g/m2. Blue curves indicate the percentage of patches that lose all their resources. Red ones indicate the percentage of biomass reduction. Note that the scale on the vertical axis is different for each curve (as indicated by the corresponding coloured horizontal arrows). The three scenarios for the density of D. elongatus are separated by vertical dashed lines. The case presented in Fig. 3 is indicated here with black squares.
