Table 1.

Analysis of deviance comparing alpha diversity between source populations (field or laboratory) and among tissue types (foregut, midgut, and hindgut).

	Reduced dataset			Full dataset
	Species richness	Chao1	Shannon–Wiener	Species richness	Chao1	Shannon–Wiener
Source	13.9 (0.003)	11.0 (0.007)	9.17 (0.01)	14.0 (0.002)	10.5 (0.006)	8.22 (0.013)
Tissue type	5.85 (0.010)	4.79 (0.02)	7.07 (0.005)	6.77 (0.004)	5.68 (0.008)	8.44 (0.001)
Interaction	0.51 (0.61)	1.02 (0.38)	0.98 (0.39)	0.66 (0.53)	1.15 (0.33)	1.28 (0.29)

Values represent the F-statistic (p-value) for each term. Statistically significant terms (p < 0.05) are indicated in bold. Degrees of freedom were estimated using the Kenward–Roger approximation. In the reduced dataset, two individuals from the laboratory-reared population were removed (see Materials and Methods).