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Université de Neuchâtel

Partner control mechanisms in repeated social interactions

Wubs, Matthias ; Bshary, Redouan (Dir.) ; Lehmann, Laurent (Codir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

Les individus qui interagissent socialement doivent souvent décider entre aider leur prochain, en leur procurant un bénéfice a un possible cout, ou pas. Tandis qu'une paire d'individus s'en sort mieux si les deux s'entraident, un individu peut tirer un bénéfice relatif s'il se décide à ne pas aider tandis que l'autre l'aide. Cette situation crée un dilemme social. Parce que les...

Université de Neuchâtel

Conflict management in free-ranging wolves, Canis lupus

Baan, Candice ; Bergmüller, Ralph ; Smith, Douglas W ; Molnar, Barbara

In: Animal Behaviour, 2014, vol. 90, p. 327-334

Individuals should invest in conflict management when the costs of conflicts outweigh their benefits. We investigated whether free-ranging wolves engage in conflict resolution. We predicted that reconciliation and consolation should occur because pack members are highly interdependent upon each other owing to the benefits that group members derive from cooperative breeding, cooperative hunting...

Université de Neuchâtel

Strategic social behaviour in wild vervet monkeys

Borgeaud, Christèle ; Bshary, Redouan (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2016.

In comparison to other vertebrates, primates have a large brain in relation to their body size. It has been hypothesised that the degree of social complexity is the major predictor for such variation. In group living species, individuals face various social challenges which can include finding the right balance between cooperation and competition with other group members. Thus to survive and...

Université de Neuchâtel

The ecology underlying decision rules of bluestreak cleaner wrasse during client interactions

McAfoose, Sharon ; Bshary, Redouan (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2017.

La coopération est définie comme un «comportement d'aide» qui offre des avantages directs à d'autres individus. Un tel comportement a longtemps intrigué les biologistes car il pose un problème pour la théorie évolutive classique : pourquoi un individu devrait-il effectuer un comportement qui bénéficie un autre individu plutôt que lui-même? En effet, un vaste ensemble de travaux sur...

Université de Neuchâtel

Variation in Cleaner Wrasse Cooperation and Cognition: Influence of the Developmental Environment?

Wismer, Sharon ; Pinto, Ana I ; Vail, Alex L ; Grutter, Alexandra S ; Bshary, Redouan

In: Ethology, 2014, vol. 120, no. 6, p. 519-531

Deviations from model-based predictions of strategies leading to stable cooperation between unrelated individuals have raised considerable debate in regards to decision- making processes in humans. Here, we present data on cleaner wrasse (Labroides dimidiatus) that emphasize the importance of generalizing this discussion to other species, with the aim to develop a coherent theoretical...

Université de Neuchâtel

Indo-Pacific parrotfish exert partner choice in interactions with cleanerfish but Caribbean parrotfish do not

Soares, Marta C ; Cardoso, Sónia C ; Nicolet, Katia J ; Côté, Isabelle M ; Bshary, Redouan

In: Animal Behaviour, 2013, vol. 86, no. 3, p. 611-615

Cooperation theory puts a strong emphasis on partner control mechanisms that have evolved to stabilize cooperation against the temptation of cheating. The marine cleaning mutualism between the Indo-Pacific bluestreack cleaner wrasse, Labroides dimidiatus, and its reef fish ‘clients’ has been a model system to study partner control mechanisms and counterstrategies. These cleaners...

Université de Neuchâtel

Social games between bonobos and humans: evidence for shared intentionality?

Pika, Simone ; Zuberbühler, Klaus

In: American Journal of Primatology, 2008, vol. 70, no. 3, p. 207-210

"Triadic social games are interesting from a cognitive perspective because they require a high degree of mutual social awareness. They consist of two agents incorporating an object in turn-taking sequences and require individuals to coordinate their attention to the task, the object, and to one another. Social games are observed commonly in domesticated dogs interacting with humans, but they have...

Université de Neuchâtel

Vocal, gestural and locomotor responses of wild chimpanzees to familiar and unfamiliar intruders : a playback study

Herbinger, Ilka ; Papworth, Sarah ; Boesch, Christophe ; Zuberbühler, Klaus

In: Animal behaviour, 2009, vol. 78, no. 6, p. 1389-1396

Wild chimpanzees can be dangerously violent against individuals that do not belong to their community, indicating a strong selection pressure on decision-making abilities in this context. The presence of a neighbouring male indicates a serious threat, although encountering an unfamiliar male is potentially even more dangerous because it indicates the arrival of a new group with whom the subjects...

Université de Neuchâtel

Social strategies and tool use in wild corvids

Di Lascio, Felice Elias ; Bshary, Redouan (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2014.

Les corvidés ont suscité un intérêt croissant ces dernières années à cause des capacités cognitives très développées que ces oiseaux semblent posséder. Ceci leur a valu le surnom de « singes à plumes ». En effet, les travaux de recherches menés ces deux dernières décennies ont montré que les corvidés possèdent des capacités cognitives qui pourraient rivaliser avec celles de...

Université de Neuchâtel

Distinguishing four fundamental approaches to the evolution of helping

Bshary, Redouan ; Bergmüller, Ralph

In: Journal of Evolutionary Biology, 2008, vol. 21, no. 2, p. 405–420

The evolution and stability of helping behaviour has attracted great research efforts across disciplines. However, the field is also characterized by a great confusion over terminology and a number of disagreements, often between disciplines but also along taxonomic boundaries. In an attempt to clarify several issues, we identify four distinct research fields concerning the evolution of helping:...