Table 2.

Alpha diversity metrics for aphid-infested and aphid-free 12-week-old cabbages using a non-parametric two-sample t-test using Monte Carlo permutations [Mean (±SD)].

	With aphids		No aphids		t-Statistics	p-value
Chao1	22,007.20	±1724.79	22821.11	±2034.33	–0.8074	0.4460
Faith’s PD	770.08	±40.33	790.00	±48.30	–0.8376	0.4230
Observed OTUs	14,818.43	±833.26	15238.49	±957.59	–0.8755	0.4010
Simpson	0.9986	±0.0001	0.9987	±0.0002	0.7046	1

SD, standard deviation; PD, phylogenetic diversity; OUTs, operational taxonomic units.