Fig. 2.

Ecosystem process rates in the experiment. Levels of secondary production (A and B) and primary production (C and D) in the experimental mesocosms (± SEM) at each of 6 different sampling sessions. Three of these sessions occurred before the interaction strength manipulation (pretreatment) and 3 after (posttreatment). In the key, W⁺S⁺ = an intact community; W⁻²S⁺ = 2 weakest interactors removed; W⁻³S⁺ = 3 weakest interactors removed; W⁺S⁻² = 2 strongest interactors removed; W⁺S⁻³ = 3 strongest interactors removed; and W⁻S⁻ = all strong and weak interactors removed. Data were transformed for statistical analyses, but original values are shown here for clarity.