Book contents
- The Chimpanzees of the Taï Forest
- The Chimpanzees of the Taï Forest
- Copyright page
- Dedication
- Contents
- Contributors
- Preface
- Acknowledgements
- 1 War and peace in the Taï chimpanzee forest: running a long-term chimpanzee research project
- 2 Developments in statistical methods applied over four decades of research in the Taï Chimpanzee Project
- 3 Observation protocol and long-term data collection in Taï
- 4 The Wild Chimpanzee Foundation (WCF) and the Taï Chimpanzee Project (TCP)
- 5 Insights from genetic analyses of the Taï chimpanzees
- 6 Endocrinological analyses at Taï
- 7 Chimpanzee behavioural diversity and the contribution of the Taï Chimpanzee Project
- 8 An energetic model of foraging optimization: wild chimpanzee hammer selection for nut-cracking
- 9 Demography and life history of five chimpanzee communities in Taï National Park
- 10 Adoption in the Taï chimpanzees: costs, benefits and strong social relationships
- 11 Spatial integration of unusually high numbers of immigrant females into the South Group: further support for the bisexually bonded model in Taï chimpanzees
- 12 Forty years striving to capture culture among the Taï chimpanzees
- 13 Cultural diversity of nut-cracking behaviour between two populations of wild chimpanzees (Pan troglodytes verus) in the Côte d’Ivoire
- 14 Ecological and social influences on rates of social play in immature wild chimpanzees (Pan troglodytes verus)
- 15 Long-term diet of the chimpanzees (Pan troglodytes verus) in Taï National Park: interannual variations in consumption
- 16 Why Taï mangabeys do not use tools to crack nuts like sympatric-living chimpanzees: a cognitive limitation on monkey feeding ecology
- 17 Providing research for conservation from long-term field sites
- 18 Rank changes in female chimpanzees in Taï National Park
- 19 Effects of large-scale knockouts on chimpanzee association networks
- 20 Why do the chimpanzees of the Taï Forest share meat? The value of bartering, begging and hunting
- 21 Group-specific social dynamics affect urinary oxytocin levels in Taï male chimpanzees
- 22 The chimpanzees of the Taï Forest as models for hominine microorganism ecology and evolution
- 23 Acute infectious diseases occurring in the Taï chimpanzee population: a review
- 24 Why does the chimpanzee vocal repertoire remain poorly understood and what can be done about it?
- 25 Evidence for sexual dimorphism in chimpanzee vocalizations: a comparison of male and female call production and acoustic parameters
- 26 Gestural usage and development in two chimpanzee groups of different subspecies (Pan troglodytes verus/P.t. schweinfurthii)
- 27 Spatial cognitive abilities in foraging chimpanzees
- 28 Temporal cognition in Taï chimpanzees
- Index
- References
20 - Why do the chimpanzees of the Taï Forest share meat? The value of bartering, begging and hunting
Published online by Cambridge University Press: 25 November 2019
Book contents
- The Chimpanzees of the Taï Forest
- The Chimpanzees of the Taï Forest
- Copyright page
- Dedication
- Contents
- Contributors
- Preface
- Acknowledgements
- 1 War and peace in the Taï chimpanzee forest: running a long-term chimpanzee research project
- 2 Developments in statistical methods applied over four decades of research in the Taï Chimpanzee Project
- 3 Observation protocol and long-term data collection in Taï
- 4 The Wild Chimpanzee Foundation (WCF) and the Taï Chimpanzee Project (TCP)
- 5 Insights from genetic analyses of the Taï chimpanzees
- 6 Endocrinological analyses at Taï
- 7 Chimpanzee behavioural diversity and the contribution of the Taï Chimpanzee Project
- 8 An energetic model of foraging optimization: wild chimpanzee hammer selection for nut-cracking
- 9 Demography and life history of five chimpanzee communities in Taï National Park
- 10 Adoption in the Taï chimpanzees: costs, benefits and strong social relationships
- 11 Spatial integration of unusually high numbers of immigrant females into the South Group: further support for the bisexually bonded model in Taï chimpanzees
- 12 Forty years striving to capture culture among the Taï chimpanzees
- 13 Cultural diversity of nut-cracking behaviour between two populations of wild chimpanzees (Pan troglodytes verus) in the Côte d’Ivoire
- 14 Ecological and social influences on rates of social play in immature wild chimpanzees (Pan troglodytes verus)
- 15 Long-term diet of the chimpanzees (Pan troglodytes verus) in Taï National Park: interannual variations in consumption
- 16 Why Taï mangabeys do not use tools to crack nuts like sympatric-living chimpanzees: a cognitive limitation on monkey feeding ecology
- 17 Providing research for conservation from long-term field sites
- 18 Rank changes in female chimpanzees in Taï National Park
- 19 Effects of large-scale knockouts on chimpanzee association networks
- 20 Why do the chimpanzees of the Taï Forest share meat? The value of bartering, begging and hunting
- 21 Group-specific social dynamics affect urinary oxytocin levels in Taï male chimpanzees
- 22 The chimpanzees of the Taï Forest as models for hominine microorganism ecology and evolution
- 23 Acute infectious diseases occurring in the Taï chimpanzee population: a review
- 24 Why does the chimpanzee vocal repertoire remain poorly understood and what can be done about it?
- 25 Evidence for sexual dimorphism in chimpanzee vocalizations: a comparison of male and female call production and acoustic parameters
- 26 Gestural usage and development in two chimpanzee groups of different subspecies (Pan troglodytes verus/P.t. schweinfurthii)
- 27 Spatial cognitive abilities in foraging chimpanzees
- 28 Temporal cognition in Taï chimpanzees
- Index
- References
Summary
Meat sharing is common in chimpanzees. While being well-studied, it is still unclear what drives meat owners to relinquish nutritional benefits in favour of group members. The topic is rich in theoretical models, with support for different hypotheses coming from various chimpanzee populations. Few studies have considered several alternative hypotheses simultaneously, which provides insight into how multiple mechanisms interact to enable meat sharing. We investigated whether Reciprocal Altruism, Sharing-under-pressure, Mutualism, or Costly Signalling can explain meat sharing in Taï chimpanzees. We found evidence that chimpanzees exchange meat for support in aggressive interactions, supporting Reciprocal Altruism. We found partial support for Mutualism, as individuals who caught the prey ate more than others, and hunters who begged were more likely to receive meat than others. Finally, we found that begging led to sharing, possibly supporting the Sharing-under-pressure hypothesis. Various mechanisms can lead to meat sharing; the prevalence of one mechanism over another might result from their ability to adapt to the specific environmental and social conditions of the population.
Keywords
- Type
- Chapter
- Information
- The Chimpanzees of the Taï Forest40 Years of Research, pp. 316 - 338Publisher: Cambridge University PressPrint publication year: 2019
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