Disentangling the importance of social and ecological information in goal-directed movements in a wild primate

摘要: Memories linked to specific locations provide information for animals plan future actions and anticipate the occurrence of events. Here, we examined goal-directed travel towards where biologically meaningful events had previously taken place elucidate relative importance past social ecological route planning. We inferred travelling by detecting long sections straight-line travel, followed significant directional changes along trajectories five neighbouring groups black howler monkeys, Alouatta pigra, at Palenque National Park, Mexico. Post hoc, determined approached locations: (1) behaviour group; (2) previous intergroup interactions; (3) properties feeding tree (i.e. in diet, level phenological synchrony). The likelihood a location engage loud calling increased after having experienced an encounter with group that same past. Additionally, forage on fruits when was considered important diet highly synchronous cycles. Our results indicate planning wild involves integration both variables.