Results of model selection using Akaike's information criterion (AIC) for the relationship between secondary production of Dentinephtys glabra and environmental factors.

Only the top five models with Akaike weight (wi) and R2 values are shown. Regression coefficients were expressed as Z values (estimate/SE).Factors are abbreviated as Cond (conductivity), Cross (cross-sectional area), Slope (bank slope), Water (Water content), Chl a (Chl a concentration), Temp (temperature), Clay (clay-silt content).