Distinct gene regulatory signatures of dominance rank and social bond strength in wild baboons

The social environment is a major determinant of morbidity, mortality and Darwinian fitness in social animals. Recent studies have begun to uncover the molecular processes associated with these relationships, but the degree to which they vary across different dimensions of the social environment remains unclear. Here, we draw on a long-term field study of wild baboons to compare the signatures of affiliative and competitive aspects of the social environment in white blood cell gene regulation, under both immune-stimulated and non-stimulated conditions. We find that the effects of dominance rank on gene expression are directionally opposite in males versus females, such that high-ranking males resemble low-ranking females, and vice versa. Among females, rank and social bond strength are both reflected in the activity of cellular metabolism and proliferation genes. However, while we observe pronounced rank-related differences in baseline immune gene activity, only bond strength predicts the fold-change response to immune (lipopolysaccharide) stimulation. Together, our results indicate that the directionality and magnitude of social effects on gene regulation depend on the aspect of the social environment under study. This heterogeneity may help explain why social environmental effects on health and longevity can also vary between measures. This article is part of the theme issue ‘The centennial of the pecking order: current state and future prospects for the study of dominance hierarchies’.

The Role of Social Bonds in Understanding the Pre- and Post-Recognition Effects of Recognition Visibility

Distinguishing high-performing employees imposes choices on managers: Is recognition most effectively delivered publicly or privately? If delivered publicly, what setting is best? This paper broadens the accounting literature on the implications of these decisions. Via experiment, I examine how the social bond between recognized employees and those observing the recognition influences the effect of recognition visibility on employee behavior. I find that with weak social bonds, public recognition (versus private) does not result in more beneficial employee behavior. However, when social bonds are strong, employees provide greater pre-recognition effort and respond more positively to public recognition than to private recognition. Overall, my study supports the extensive use of public recognition in practice and helps clarify the collective results from prior accounting studies. My findings also have implications for implementing recognition programs - suggesting managers should consider employee relationships when deciding how and where to recognize their employees.

Turkeys Befriend a Girl: Turkey Husbandry, Ceremonialism, and Tales of Resistance during the Pueblo Revolt Era

From Basketmaker II to Pueblo II (200 BC–AD 1150), turkey husbandry flourished among Ancestral Pueblos inhabiting the northern and southern San Juan areas (300 BC–AD 1250) and the Rio Grande Valley (AD 1250– 1700) due to the ritual-symbolic importance of turkey feathers to rainmaking ideology. As primary caregivers, Ancestral Puebloan women's long-lasting social bond with domesticated turkeys was disrupted by Spanish maize and textile tribute (encomienda) systems and demands on Native labor (repartimiento) of the mid-1600s, a major factor contributing to the Pueblo Revolt of 1680. Despite the Spanish assault on their culture, Native people clandestinely practiced kachina religion by reusing turkey feather ceremonial objects, seeking refuge in ancestral mesa-top villages, and repurposing Spanish ecclesiastical materials as part of a pan-Pueblo resistance and revitalization movement. This study examines a previously overlooked form of Native resistance to Franciscan conversion efforts—“turkey girl” tales that appropriated and repurposed a Spanish religious folktale. Evidence suggests that these tales were authored by Pueblo Revolt–era war captains who attended Franciscan mission schools around the 1630s. To varying degrees, these “turkey girl” tales express nativist resistance to Franciscan conversion efforts, commitment to revitalization ideology, and pan-Pueblo ethnogenesis.

Behavioural Responses to Temporary Separation of a Captive Herd of African Elephants (Loxodonta africana)

Elephants are highly intelligent animals with a huge capacity for social cognition, living in large, long-lived, related herds. In captivity, it is extremely difficult to meet all of the species’ ecological needs, as well as those required individual by individual, but improvements are continually being made. After identifying impaired welfare, one collection made the decision to relocate four female African Elephants (Loxodonta africana) to a different facility. As the worlds’ largest land mammal, many safety, welfare, and logistical considerations were undertaken. The elephants travelled in two pairs, a mother–daughter pair and an older unrelated female and a younger unrelated female with a strong social bond. As a result, there was a short gap in between transports, allowing for further habituation to transport crates and the heat of summer. The changes in both social and individual behaviours of the two females remaining when their group was temporarily reduced from four to two were investigated using one-zero sampling. The study determined the daily activities of the elephants comparing ‘before transport’ to ‘after transport’ for the two remaining elephants to establish any changes in their behaviours as a result of this disturbance. Post transport, there was an increase in both human-audible vocalisations and temporal gland secretions, and hugely decreased play behaviour was observed. The dynamic between the remaining pair was also altered with more tactile behaviours from mother to daughter seen but more submission from daughter to mother. This led to the conclusion that the elephants, although mostly unrelated and living in an ‘unnatural’ captive setting, had the same signs of stress and behavioural change as would a highly related group if separated.