Table 4. Engineering-based performance measure shifts associated with ecological traits.

Category abbreviations as in Table 1.

	Temporalis-driven			Masseter-driven
	Stiffness	Safety factor	Efficiency	Stiffness	Safety factor	Efficiency
G1. Small to large	No change	Higher	Lower	No change	Higher	Higher
FE1. Broad to narrow	Higher	Higher	Higher	Lower	No change	No change
LH2. Late to early	Higher	Higher	Lower	Lower	No change	No change
EV1. High to low	Higher	Higher	Higher	Higher	Higher	Higher
FE2. Omnivory-herbivory	Higher	Higher	Lower	Higher	Higher	Higher
FE2. Carnivory-herbivory	Higher	Higher	Lower	Higher	Higher	Lower