Figure 1

(a) PC 1 loading vs PC 2 loading (colour representative of sample groups, Rostrum is indicated by a solid circle, while ACP is indicated by a dashed circle), (b) the relationship between PC 1 and MR (R2 = 0.89, p ≪ 0.001).

(a) PC 1 loading vs PC 2 loading (colour representative of sample groups, Rostrum is indicated by a solid circle, while ACP is indicated by a dashed circle), (b) the relationship between PC 1 and MR (R2 = 0.89, p ≪ 0.001).