Principal response curves (PRC) with species scores (bk) for food-web data set, obtained from the soil multi species test system (SMS) experiment performed using soil from a reference and Cu contaminated (1000 mg Cu/kg) site from Hygum,Denmark. The solid lines ( ) represent the control and the dashed lines (- -) represents the Cu contaminated treatment. Tests were performed at four temperatures(10, 14, 19 and 23◦C) and three exposure periods (28, 61 and 84 days). Control temperature was set to be 10◦C.