The fecal sample of Ateles marginatus yielded DNA that was too degraded for successful long-range amplification, thus for this sample alone we amplified overlapping regions of mtDNA in smal- ler fragments of 500 bp directly from the initial extraction. These PCR amplifications were performed in 10 ll reactions using 5 ll of HotStart-IT Taq Master Mix
(2 ), 0.2 ll each of the heavy and light strand primers (see Supplementary Table 1) at a concentra- tion of 10 lM, 2 ll of unquantified DNA extraction, and 2.6 ll of HPLC water.