====== Chimpanzee immigration: Complex social strategies differ between zoo-based and wild animals ====== * **ID:** 20231012163518344-1398 * **Researcher:** Florent Goetschi, J. McClung, A. Baumeyer, K. Zuberbühler * **WP:** Other * **PI:** null * **Abstract:** Article history: Received: 23 Aug 2017 Accepted: 14 Sept 2019 Published online: 31 Jan 2020 Abstract Chimpanzee (Pan troglodytes) inter-group encounters are typically aggressive in nature, as individuals have evolved the predisposition to jointly defend their home range against neighbouring groups. The current study presents data on the behavioural strategies of chimpanzees during the integration of one male and two females into a well-established group at Basel Zoo, Switzerland. Moreover, a full integration procedure is included. The study found that, as predicted, social relationships were generally of better quality in dyads of individuals from the same group than dyads of individuals from different groups shortly after integration. Interestingly, immigrants additionally targeted males as preferred interaction partners, contrary to observations in inter-group encounters. In addition, immigrants targeted the resident juveniles for play interactions, significantly more so than did residents. The alpha male policed the resident group members, further facilitating immigrant integration, including the integration of another male. In contrast, both resident and immigrant females had better relationships with members of their own group than with members of other groups. Overall, these diverse behavioural strategies led to the successful long-term integration of the immigrant individuals, a demonstration of the social flexibility of this species in contrast to the evolved xenophobic propensities seen in the wild. * **Publication DOI:** [[https://doi.org/10.19227/jzar.v8i1.326|https://doi.org/10.19227/jzar.v8i1.326]] * **Publication Link:** [[https://jzar.org/jzar/article/view/326/299|https://jzar.org/jzar/article/view/326/299]] * **Data Type:** null * **Data Format:** null * **Git:** [[None|None]]