Figure 4: Dietary niche partitioning within and among 5 species of Campylomormyrus and one species of its sister genus Gnathomemus by nMDS of RRA-based Bray–Curtis dissimilarity indices of samples on the order level (adonis F = 3.04, R2 = 0.243, p ≤ .001). The symbols represent the species and the colors represent snout length. The shaded convex hulls indicate short vs. long EOD. The stress level of 0.133 is under the cut-off value of 0.2 as recommended by Clarke (1993) to indicate an interpretable ordination.