3.2 Reconstructed geographical distribution
Macaques’ diversity distribution profiles in the Pleistocene (LIG and LGM) are reconstructed based on fossil data and BC variables (Figure 1). Regarding LIG, macaques’ highly suitable distribution areas were primarily concentrated east of the Southwest, south of Central, and Coastal. Moderately suitable areas were mainly in the south of the Southwest. Poorly suitable areas were principally clustered in the north of the Central and south of the Northeast (Figure 1A).
As for LGM, compared with LIG, highly suitable areas in the south of the Central and Coastal were degraded to moderately suitable ones, which shifted to the Central (Henan) and the Northwest (Shannxi). Poorly suitable areas in the Northeast, moving to the north of the Central (Figure 1B).