Leaders of progressions in wild mixed-species troops of saddleback (Saguinus fuscicollis) and mustached Tamarins (S-mystax), with emphasis on color vision and sex

摘要: Leadership of travel progression is an important aspect group living. It widely believed that trichromacy evolved to facilitate the detection and selection fruit in dappled light a forest. Further, it has been proposed New World primate species, which typically contain range color vision phenotypes, at least one female will be trichromatic (i.e., having three types visual pigment, contrast two pigment found dichromatic individuals) lead fruiting trees. We examine leadership within wild mixed-species troops saddleback (Saguinus fuscicollis) mustached mystax) tamarins over complete year. As whole units, were most frequently led by tamarin. This first time individual have quantified these tamarin species. In terms single-species intragroup leadership, neither status (dichromatic or trichromatic) nor sex individuals had consistent effect across Saddleback groups males more than females, while evidence suggests may female-led. The notion all leads troop feeding trees was not supported.