Figure 4. Population and demographic history of the Arabian mangroves. Graphic summary of the demographic models that better fitted the SFS and corresponding times of divergence computed in fastSIMCOAL2 for the Red Sea, the PAG and the entire Arabian Peninsula. Historical sea level fluctuations through the glacial cycles of the Quaternary are provided in a consistent temporal scale (left panel) based on calibration points reported in Miller et al. (2005), represented by gray circles. Glacial periods of low sea connectivity are represented in blue and interglacial periods in gold. Full parameter estimates and CI % are provided in Table S5, Supporting Information.