Table 1. Models of Migration into the Caribbean after the advent of admixture.

Admixed Population	Migration models1
	EUR,NAT+AFR		EUR,NAT+AFR+EUR		EUR,NAT+AFR+AFR
	Log Likelihood	Time (G)2	Log Likelihood	Time (G)2	Log Likelihood	Time (G)2
COL	−255.33	13	−246.80	14	−247.68	13
HON	−153.24	13	−139.22	14	−156.03	13
CUB	−506.43	19	−497.62	21	−326.12	17
DOM	−189.39	17	−189.33	17	−170.14	16
HAI	−122.73	11	−121.91	12	−119.10	16
PUR	−222.82	17	−204.23	17	−176.17	16

¹Three migration models were tested for each admixed population: a simple model of single pulses of migrants from each source population, beginning with Europeans and Native Americans at T₁ followed by African migrants at T₂ (EUR,NAT+AFR); the simple model followed by an additional pulse of European migrants (EUR,NAT+AFR+EUR); the simple model followed by an additional pulse of African migrants (EUR,NAT+AFR+AFR). Log likelihoods given either model were compared and we present the model with the best Bayesian Information Criterion (log likelihood values in bold).

²The maximum likelihood estimate of time since admixture initially began. We assume prior migration between the populations was zero. Time since migration began is indicated in generations.