Payoff- and sex-biased social learning interact in a wild primate population
| Autor: | Axelle E. J. Bono, Carel P. van Schaik, Andrew Whiten, Franca Eichenberger, Michael Krützen, Alessandra Schnider, Erica van de Waal |
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| Přispěvatelé: | University of St Andrews. School of Psychology and Neuroscience, University of Zurich, van de Waal, Erica |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Male
10207 Department of Anthropology 0301 basic medicine BF Psychology Foraging Population NDAS Captivity BF Animals Wild Genetics and Molecular Biology 1100 General Agricultural and Biological Sciences Social learning in animals Social learning strategy General Biochemistry Genetics and Molecular Biology Developmental psychology 03 medical and health sciences 1300 General Biochemistry Genetics and Molecular Biology biology.animal Chlorocebus aethiops Sex differences Animals Attention 0501 psychology and cognitive sciences Primate 050102 behavioral science & comparative psychology Social Behavior education Cultural transmission in animals education.field_of_study QL biology Cercopithecus aethiops/physiology Female Social Learning/physiology cultural transmission field experiment sex differences social learning strategy vervet monkeys 300 Social sciences sociology & anthropology 05 social sciences Stochastic game QL Zoology Social learning Social Learning Field experiment 030104 developmental biology Vervet monkeys General Biochemistry General Agricultural and Biological Sciences Cultural transmission |
| Zdroj: | Current biology, vol. 28, no. 17, pp. 2800-2805.e4 |
| Popis: | This study was financed by grants to E.v.d.W. from the Swiss National Science Foundation (31003A_159587 and PP03P3_170624) and the Branco Weiss Fellowship – Society in Science. Social learning in animals is now well documented, but few studies have determined the contexts shaping when social learning is deployed. Theoretical studies predict copying of conspecifics gaining higher payoffs [1, 2, 3, 4], a bias demonstrated in primates only in captivity [5]. In the wild, research has shown selective attention toward the philopatric sex, a group’s stable core [6]. Here, we report the first rigorous experimental test of the existence of a payoff bias in wild primates and its interaction with the sex of the model. We created a payoff bias in which an immigrant alpha male in each of three groups of wild vervet monkeys received five times more food upon opening a foraging box than did the philopatric alpha female, whereas in two control groups, male and female models received the same amount of food. We tested whether this payoff asymmetry would override the previously documented selective learning from resident females. Group members were tested after having watched both models. When both models received the same amount of food, audience members copied the female model significantly more than the male model, confirming previous findings. However, when a marked payoff bias was introduced, male, but not female, vervet monkeys significantly more often copied the male model receiving a higher payoff. These results demonstrate behavioral flexibility in the dispersing sex in these primates and suggest that the philopatric sex can afford to be more conservative in their social learning. Our findings show that multiple social-learning biases can coexist and interact within the same species. Postprint |
| Databáze: | OpenAIRE |
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