Table 1. Wolbachia infection frequencies in D. yakuba and D. santomea on São Tomé.

Species	Year	N	Infected	p (confidence interval)
D. yakuba	2001	35	14	0.40 (0.24, 0.58)
	2009	155	118	0.76 (0.69, 0.83)
	2015	41	31	0.76 (0.60, 0.88)
	2018	81	71	0.88 (0.79, 0.93)
	Low altitude	40	32	0.80 (0.65, 0.90)
	High altitude	41	39	0.95 (0.84, 0.99)
D. santomea	2005	39	25	0.64 (0.47, 0.79)
	2009	57	44	0.77 (0.64, 0.87)
	2015	38	14	0.37 (0.22, 0.54)
	2018	78	62	0.80 (0.69, 0.87)
	Site 1	24	19	0.79 (0.60, 0.91)
	Site 2	54	43	0.80 (0.67, 0.88)

Sample sizes (N), infection frequencies (p), and exact 95% binomial confidence intervals are shown for each year. Data from 2001 to 2015 are from Cooper et al. (2017). For each species, infection frequencies are calculated for the pooled 2018 dataset and for each region.