Fig. 4.

Algal response factor for natural and artificial communities. Algal response factor for natural (dots, a and b) and artificial (triangles, c and d) phytoplankton communities after press disturbance (a, c) and after pulse disturbance (b, d). The three most abundant taxonomic groups in all communities, cyanobacteria (white fill), diatoms (light gray fill), and green algae (dark gray fill) are displayed here as means for all sites (± SE). Symbols are slightly displaced for better illustration