Maximum population size (A), population growth rate (B), population size (averaged over last 10 days) (C), % of animals fecund (averaged over last 10 days) (D), number of eggs per Daphnia (E), and time to first population peak (F) in high and low P tanks. Shown are the means (solid line in boxes), 25–75 quantiles (boxes) and 95% confidence intervals (error bars) among replicate tanks on each sampling event (excluding the outlier tank for the high P supply bars; shown with a gray dot).