Regulation of vocal output by chimpanzees finding food in the presence or absence of an audience
Sarah F. Brosnan | Living Links Center, Yerkes Primate Research Center
Frans B.M. de Waal | Graduate Division of Biological and Biomedical Sciences, Emory University
Chimpanzees (Pan troglodytes) give both food barks and pant hoots upon encountering food and regulate their calls based upon such factors as food quantity, quality, and possibly divisibility. Although it has been determined that several species, both primate and non-primate, regulate their food calls based upon the presence or absence of an audience, this has not been systematically explored with chimpanzees. Group-housed chimpanzees were given access to either large or small quantities of food when they had either visual access to companions (Audience condition) or were visually isolated (No Audience condition). We predicted that chimpanzees would call more for larger quantities of food and more in the presence of an audience. As expected, food calling was greater for large quantities of food than small quantities. The effect of an audience was more complex. A visible audience increased the rate of food calling for a large, sharable quantity of food, yet decreased the rate for a small, non-sharable quantity. These results are consistent with the hypothesis that chimpanzee vocal expression is sensitive to social context, and that they are able to regulate the information made available to others in accordance with predicted future interaction.
2022. Male chimpanzees communicate to mediate competition and cooperation during feeding. Animal Behaviour 186 ► pp. 41 ff.
Brosnan, Sarah F.
2006. Nonhuman Species’ Reactions to Inequity and their Implications for Fairness. Social Justice Research 19:2 ► pp. 153 ff.
Brosnan, Sarah F.
2006. Nonhuman Species’ Reactions to Inequity and their Implications for Fairness. Social Justice Research 19:2 ► pp. 153 ff.
Brosnan, Sarah F., Hillary C. Schiff & Frans B. M. de Waal
2005. Tolerance for inequity may increase with social closeness in chimpanzees. Proceedings of the Royal Society B: Biological Sciences 272:1560 ► pp. 253 ff.
Bräuer, Juliane, Magdalena Keckeisen, Andrea Pitsch, Juliane Kaminski, Josep Call & Michael Tomasello
2013. Domestic dogs conceal auditory but not visual information from others. Animal Cognition 16:3 ► pp. 351 ff.
Fogassi, Leonardo, Gino Coudé & Pier Francesco Ferrari
2013. The extended features of mirror neurons and the voluntary control of vocalization in the pathway to language. Language and Cognition 5:2-3 ► pp. 145 ff.
Genty, E.
2019. Vocal–gestural combinations in infant bonobos: new insights into signal functional specificity. Animal Cognition 22:4 ► pp. 505 ff.
Hare, Brian
2011. From Hominoid to Hominid Mind: What Changed and Why?. Annual Review of Anthropology 40:1 ► pp. 293 ff.
Hobaiter, C., R. W. Byrne & K. Zuberbühler
2017. Wild chimpanzees’ use of single and combined vocal and gestural signals. Behavioral Ecology and Sociobiology 71:6
Hopkins, William D., Jared P. Taglialatela & David A. Leavens
2007. Chimpanzees differentially produce novel vocalizations to capture the attention of a human. Animal Behaviour 73:2 ► pp. 281 ff.
Luef, Eva Maria, Thomas Breuer, Simone Pika & Katie Elizabeth Slocombe
2016. Food-Associated Calling in Gorillas (Gorilla g. gorilla) in the Wild. PLOS ONE 11:2 ► pp. e0144197 ff.
Melis, Alicia P., Josep Call & Michael Tomasello
2006. Chimpanzees (Pan troglodytes) conceal visual and auditory information from others.. Journal of Comparative Psychology 120:2 ► pp. 154 ff.
Meredith, Stephanie L.
2015. Comparative perspectives on human gender development and evolution. American Journal of Physical Anthropology 156:S59 ► pp. 72 ff.
2020. Measures of inhibitory control correlate between different tasks but do not predict problem-solving success in a fish, Poecilia reticulata. Intelligence 82 ► pp. 101486 ff.
O'Bryan, Lisa R., Susan P. Lambeth, Steven J. Schapiro & Michael L. Wilson
2020. Unpacking chimpanzee (Pan troglodytes) patch use: Do individuals respond to food patches as predicted by the marginal value theorem?. American Journal of Primatology 82:12
Owren, Michael J., R. Toby Amoss & Drew Rendall
2011. Two organizing principles of vocal production: Implications for nonhuman and human primates. American Journal of Primatology 73:6 ► pp. 530 ff.
O’Bryan, Lisa R., Susan P. Lambeth, Steven J. Schapiro & Michael L. Wilson
2021. Playbacks of food-associated calls attract chimpanzees towards known food patches in a captive setting. Primates 62:6 ► pp. 905 ff.
Pedersen, Janni
2020. Nonhuman Primates and Language: Vocal Communication. In The International Encyclopedia of Linguistic Anthropology, ► pp. 1 ff.
Perrett, David
2010. Fish Face. In In Your Face, ► pp. 7 ff.
Pollick, Amy S., Harold Gouzoules & Frans B.M. de Waal
2005. Audience effects on food calls in captive brown capuchin monkeys, Cebus apella. Animal Behaviour 70:6 ► pp. 1273 ff.
Semple, Stuart, Melissa S. Gerald & Dianne N. Suggs
2009. Bystanders affect the outcome of mother–infant interactions in rhesus macaques. Proceedings of the Royal Society B: Biological Sciences 276:1665 ► pp. 2257 ff.
Slocombe, Katie E, Nicole J Lahiff, Claudia Wilke & Simon W Townsend
2022. Chimpanzee vocal communication: what we know from the wild. Current Opinion in Behavioral Sciences 46 ► pp. 101171 ff.
Slocombe, Katie E. & Klaus Zuberbühler
2007. Chimpanzees modify recruitment screams as a function of audience composition. Proceedings of the National Academy of Sciences 104:43 ► pp. 17228 ff.
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