Models on diet composition testing for effects of herbivores species and date.

Table gives the degrees of freedoms (df) and the delta-AIC (ΔAIC) between the best model and the specified model (M1 to M8, BM1 to BM3) for each plant type. The best model among the 8 first models denoted M1 to M8 has a delta-AIC of 0. The three last models, denoted BM1 to BM3, correspond to models replacing the herbivore species effect by herbivore species body mass categories (BM1) or categories based on digestive morphophysiology (BM2 and BM3). These models can be considered as better than the M1 to M8 models if their delta-AIC is negative.
a: Number of degrees of freedom of the best model minus 2.
b: Number of degrees of freedom of the best model minus 1.
c: Number of degrees of freedom of the best model minus 2.