Friday, 10 June 2016

Mutual medication in capuchin monkeys-Social anointing improves coverage of topically applied anti-parasite medicines

Volume 5, 12 October 2015, Article number 15030
Open Access


School of Psychology and Neuroscience, University of St.Andrews, St.Andrews, United Kingdom
San Diego Zoo Global Institute for Conservation Research, 15600 San Pasqual Valley Road, Escondido, CA, United States
Aix Marseille Université, Centre National de la Recherche Scientifique, Laboratoire de Psychologie Cognitive, Marseille, France

Abstract

Wild and captive capuchin monkeys will anoint themselves with a range of strong smelling substances including millipedes, ants, limes and onions. Hypotheses for the function of the behaviour range from medicinal to social. However, capuchin monkeys may anoint in contact with other individuals, as well as individually. The function of social anointing has also been explained as either medicinal or to enhance social bonding. By manipulating the abundance of an anointing resource given to two groups of tufted capuchins, we tested predictions derived from the main hypotheses for the functions of anointing and in particular, social anointing. Monkeys engaged in individual and social anointing in similar proportions when resources were rare or common, and monkeys holding resources continued to join anointing groups, indicating that social anointing has functions beyond that of gaining access to resources. The distribution of individual and social anointing actions on the monkeysâ ™ bodies supports a medicinal function for both individual and social anointing, that requires no additional social bonding hypotheses. Individual anointing targets hard-to-see body parts that are harder to groom, whilst social anointing targets hard-to-reach body parts. Social anointing in capuchins is a form of mutual medication that improves coverage of topically applied anti-parasite medicines.
ISSN: 20452322Source Type: Journal Original language: English
DOI: 10.1038/srep15030Document Type: Article
Publisher: Nature Publishing Group
  Bowler, M.; School of Psychology and Neuroscience, University of St.Andrews, United Kingdom
© Copyright 2015 Elsevier B.V., All rights reserved.