Angelina V. Ruiz-Lambides

TL;DR: Evidence that social network tendencies are heritable in a gregarious primate, rhesus macaques, is provided, suggesting that, like humans, the skills and temperaments that shape the formation of multi-agent relationships have a genetic basis in nonhuman primates.

TL;DR: The findings provide the first evidence of sex differences in the survival costs of reproduction in nonhuman primates and suggest that reproduction has significant fitness costs even in environments with abundant food and absence of predation.

TL;DR: It is reported in adult female macaques that the impact of number of close adult female relatives, a proxy for social integration, on survival is not experienced uniformly across the life course; prime-aged females with a greater number of relatives had better survival outcomes compared with prime-aging females with fewer relatives, whereas no such effect was found in older females.

TL;DR: This study uses survival models and long-term data in adult female rhesus macaques to compare the fitness outcomes of multiple measures of social connectedness and finds no survival benefits to being structurally well-connected or engaging in high rates of grooming.

TL;DR: No evidence of an association with reproductive output, measured either by infant survival or by interbirth interval, for any of the personality components suggests either that personality does not have fitness-related consequences in this population or that selection has acted to reduce fitness-associated variation in personality.