near-significantP = 0.06
Although there was no main effect of species ( P > 0.3 for both metrics), there were significant or near-significant species-by-captivity interactions (species × captivity interaction: Shannon index, F 1,11 = 4.25, P = 0.06; and Faith's phylogenetic diversity, F 1,11 = 7.71, P = 0.018; Fig. 2 ).