Fig. 3
From: Complexity vs linearity: relations between functional traits in a heterotrophic protist
Pairwise relations among the six functional traits measured for the 40 T. thermophila strains. Each dot represents the average value of all replicates at the strain level, the blue line a linear model, and the red curve a GAM. Both are represented with their respective 95% confidence interval. Above every graph is displayed the deviance explained (D.exp) by each model. When displayed, the non-linear GAM is significantly better than the linear model (e.d.f. > 1). Otherwise, the non-linearity did not improve the model fit, both models remaining linear and identical (hence the same D.exp), and on the graph only the linear model is displayed