Fig. 4
From: ABLE: blockwise site frequency spectra for inferring complex population histories and recombination
Models of orangutan demography considered in this paper. All models assume a split between two populations at time T with an effective ancestral population size NA. In M2–M6, the current population sizes are additional free parameters. M3 allows for exponential growth (or decline) in each population. M4 and M5 assume continuous gene flow since the time of split to the present or to a stopping time T2, respectively. M6 considers an asymmetric admixture event at time T2