Abstract # 13347 Poster # 99:

Scheduled for Thursday, August 22, 2019 06:00 PM-08:00 PM: (Alumni Lounge) Poster Presentation


POTENTIAL PREDICTORS OF SOCIAL INCOMPATIBILITY IN RHESUS MACAQUES (MACACA MULATTA) HOUSED IN RESEARCH SETTINGS

M. A. Truelove1, P. O. Smith2, A. L. Martin2, J. E. Perlman1 and M. A. Bloomsmith1
1Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA, 2Department of Psychological Science, Kennesaw State University, Kennesaw, GA, USA
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     Pair-housing of research monkeys improves their psychological wellbeing while also allowing researchers access. Earlier studies have found individual characteristics including sex, age, and weight influence the success of social introductions; however, little is known about the factors influencing the long-term stability of established pairs. To investigate factors that predict pair stability in rhesus macaques, archival data were analyzed using a logistic regression analysis (alpha=0.05). We examined whether sex, age, weight, duration pair-housed, room changes, social interruptions, and veterinary procedures influenced the reason pairs were ultimately separated. Social incompatibility led to separation of 80 pairs, while 1,143 pairs were separated for non-social reasons (e.g., research procedures or clinical concerns). The logistic regression model was significant (chi-squared(8)=23.875, p =.002). Two significant factors were identified: pairs in which partners had prior familiarity in group housing were less likely to experience social incompatibility, while those who experienced social interruptions via temporary reduced physical contact using perforated dividers were more likely to require separation for social incompatibility. Placement of perforated dividers was more likely for social as opposed to non-social reasons among pairs who were eventually separated for incompatibility (chi-squared(1)=64.10, p<.01), suggesting that these pairs were showing early signs of social instability rather than suggesting the interruptions were a causative factor in the pair’s incompatibility. Findings may be useful for primate caregivers when making decisions about managing social partners.