Table 1. Top box: Zooplankton mean density (/liter) and standard deviation across four experiments, ordered by most to least common from left to right. Daphnia retrocurva and Macrothrix are not included as they were at very low densities in a small number of tanks of Exp. 1 only. Middle box: Density rank of each taxa in each experiment, and the percent of tanks the taxon was found in as indicated by: plain text for 90-100% occupied, italicized bold text for 70-90% occupied, underlined text for 50-70% occupied, an asterisk for 20-50% occupied, and N for no tanks occupied. Bottom box: The caged-fish treatment effect combinations of no effect, positive effect or negative effect, seen among experiments (see Fig. 1) is given by a capital X for each of the 10 taxa found in all four experiments. The lower case x represents the combination trend if p < 0.1 is used rather than p < 0.05.