Leadership is a key issue in the study of collective behavior in social animals. Affiliation-leadership models predict that dyadic partner preferences based on grooming relationships or alliance formation positively affect an individual's decision to follow or support a conspecific. In the case of many primate species, females without young infants are attracted to mother-infant dyads. However, the effects of mother-infant-female associations on affiliation-leadership models remain less clear. In free-ranging Tibetan macaques , we used social network analysis to examine the importance of "mother-infant-adult female" social bridging events as a predictor of who leads and who follows during group movement. Social bridging is a common behavior in Tibetan macaques and occurs when 2 adults, generally females, engage in coordinated infant handling. Using eigenvector centrality coefficients of social bridging as a measure of social affiliation, we found that among lactating females, initiating bridging behavior with another female played a significant role in leadership success, with the assisting female following the mother during group movement. Among nonlactating females, this was not the case. Our results indicate that infant attraction can be a strong trigger in collective action and directing group movement in Tibetan macaques and provides benefits to mothers who require helpers and social support in order to ensure the safety of their infants. Our study provides new insights into the importance of the third-party effect in rethinking affiliation-leadership models in group-living animals.
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http://dx.doi.org/10.1093/cz/zoaa026 | DOI Listing |
AIMS Public Health
December 2024
Departments of Urban Public Health, Internal Medicine, and Family Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, USA.
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November 2024
SOPPECOM - Society for Promoting Participative Ecosystem Management, Pune, India.
This paper develops the methodological concept of river co-learning arenas (RCAs) and explores their potential to strengthen innovative grassroots river initiatives, enliven river commons, regenerate river ecologies, and foster greater socio-ecological justice. The integrity of river systems has been threatened in profound ways over the last century. Pollution, damming, canalisation, and water grabbing are some examples of pressures threatening the entwined lifeworlds of human and non-human communities that depend on riverine systems.
View Article and Find Full Text PDFJ Nephrol
January 2025
School of Life and Medical Sciences, University of Hertfordshire, College Lane Campus, Hatfield, UK.
J Ethnobiol Ethnomed
January 2025
University of Gastronomic Sciences, Piazza V. Emanuele II 9, 12042, Pollenzo, Cuneo, Italy.
This analysis explores the food local knowledge of the Romani people in Italy, one of the most significant and historically marginalised ethnic groups in Europe. Despite their centuries-long presence across European countries, the Romani community's culinary and herbal practices have often been overlooked. A preliminary study on Romani domestic food and home (plant) remedies was conducted via 106 interviews in Turin, Rome, and Naples during the past fifteen years among urban Romani community members (who migrated to Italy from Romania and Serbia approximately three decades ago).
View Article and Find Full Text PDFHarm Reduct J
January 2025
Department of Psychiatry and Neurosciences, CCM, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charitéplatz 1, 10117, Berlin, Germany.
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