Hierarchical Effects of Nutrients Increases

The increase in nutrient concentrations, either in the water column or in the sediment pore water, initiates a sequence of events that begins with the increase in plant uptake and can be followed by higher nutrient assimilation rates and by other effects in the plant itself (Fig. 4). Other species of the community can be directly (epiphytes, bacteria, etc.) or indirectly

(grazers, suspension-feeders, etc.) affected, at their own individual or population levels. Finally, the interaction network can be modified, with responses at the community/ecosystem level.

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