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Université de Neuchâtel

Linguistic prerequisites in the primate lineage

Zuberbühler, Klaus

In: Language origins: Perspectives on evolution, 2005, p. 262-282

Université de Neuchâtel

African Great Apes Are Naturally Infected with Polyomaviruses Closely Related to Merkel Cell Polyomavirus

Leendertz, Fabian H ; Scuda, Nelly ; Cameron, Kenneth N ; Kidega, Tonny ; Zuberbühler, Klaus ; Leendertz, Siv Aina J ; Couacy-Hymann, Emmanuel ; Boesch, Christophe ; Calvignac, Sébastien ; Ehlers, Bernhard ; Leendertz, Fabian H ; Scuda, Nelly ; Cameron, Kenneth N ; Kidega, Tonny ; Zuberbühler, Klaus ; Leendertz, Siv Aina J ; Couacy-Hymann, Emmanuel ; Boesch, Christophe ; Calvignac, Sébastien ; Ehlers, Bernhard

In: Journal of virology, 2011, vol. 85, no. 2, p. 916-924

The oncogenic Merkel cell polyomavirus (MCPyV) infects humans worldwide, but little is known about the occurrence of viruses related to MCPyV in the closest phylogenetic relatives of humans, great apes. We analyzed samples from 30 wild chimpanzees and one captive gorilla and identified two new groups of polyomaviruses (PyVs). These new viruses are by far the closest relatives to MCPyV described...

Université de Neuchâtel

Predator-deterring alarm call sequences in Guereza colobus monkeys are meaningful to conspecifics

Schel, Anne Marijke ; Candiottia, Agnès ; Zuberbühler, Klaus

In: Animal Behaviour, 2010, vol. 80, no. 5, p. 799-808

Guereza colobus monkeys, Colobus guereza, produce acoustically conspicuous vocalizations, the roars, in response to their main predators, leopards, Panthera pardus, and crowned eagles, Stephanoaetus coronatus. Roaring alarm utterances generally consist of the same basic call types but differ in overall structural composition. Leopards trigger roaring alarms containing many...

Université de Neuchâtel

Causal cognition in a non-human primate : field playback experiments with Diana monkeys

Zuberbühler, Klaus

In: Cognition, 2000, vol. 76, no. 3, p. 195-207

Crested guinea fowls (Guttera pucherani) living in West African rainforests give alarm calls to leopards (Panthera pardus) and sometimes humans (Homo sapiens), two main predators of sympatric Diana monkeys (Cercopithecus diana). When hearing these guinea fowl alarm calls, Diana monkeys respond as if a leopard were present, suggesting that by default the monkeys...

Université de Neuchâtel

Répertoire et contextes sociaux des cris unitaires du colobe vert (procolobus verus) dans le Parc National de Taï (PNT), Côte d’Ivoire. = Repertoire and social contexts of Olive Colobus’ (Procolobus verus) unit calls in the Taï National Park(TNP), Ivory Coast.

Bene, Koffi J.-C ; Kone, Inza ; Zuberbühler, Klaus

In: Science & Nature, 2007, vol. 4, no. 2, p. 137-147

Pour caractériser l’environnement social et écologique du Colobe Vert (Procolobus verus), des observations régulières par tranche de 15 minutes d’animaux focaux dans trois groupes ont été menées. Les observations et les enregistrements de cris occasionnels (Ad libitum) ont permis de répertorier huit (8) types de cris unitaires émis par différentes classes de sexes et...

Université de Neuchâtel

A structure-based repertoire of manual gestures in wild chimpanzees : statistical analyses of a graded communication system

Roberts, Anna Ilona ; Vick, Sarah-Jane ; Roberts, Sam George Bradley ; Buchanan-Smith, Hannah M ; Zuberbühler, Klaus

In: Evolution and Human Behavior, 2012, vol. 33, no. 5, p. 578-589

Great ape gestural communication is considered important in understanding the evolution of human language as these share important features, namely, flexible and intentional signal use. Although gestural repertoires have been compiled for captive and wild primates, reports are largely qualitative. We quantify the morphological structure and variation of gestural signals identified in the...

Université de Neuchâtel

The development of a greeting signal in wild chimpanzees

Laporte, Marion N. C ; Zuberbühler, Klaus

In: Developmental Science, 2011, vol. 14, no. 5, p. 1220-1234

Adult chimpanzees produce a unique vocal signal, the pant-grunt, when encountering higher-ranking group members. The behaviour is typically directed to a specific receiver and has thus been interpreted as a ‘greeting’ signal. The alpha male obtains a large share of these calls, followed by the other adult males of the group. In this study, we describe the development of pant-grunting...

Université de Neuchâtel

Vocal greeting behaviour in wild chimpanzee females

Laporte, Marion N. C ; Zuberbühler, Klaus

In: Animal Behaviour, 2010, vol. 80, no. 3, p. 467-473

Chimpanzees, Pan troglodytes, are unusual among primates in that they express their social position with a unique vocal signal, the pant-grunt. The call is only produced when encountering a higher-ranking group member and has thus been interpreted as a ‘greeting’ signal. We monitored the calling behaviour of nine adult females in a group of free-ranging chimpanzees, the Sonso community...

Université de Neuchâtel

Conceptual semantics in a nonhuman primate

Zuberbühler, Klaus ; Cheney, Dorothy L ; Seyfarth, Robert M

In: Journal of comparative psychology, 1999, vol. 113, no. 1, p. 33-42

Some animal vocalizations have been described as referential, or semantic, because individuals respond to them as if they designate some object or event. Alternatively, subjects may simply attend to the acoustic features of calls rather than their meanings. Field playback experiments on diana monkeys (Cercopithecus diana diana) tested these hypotheses using the calls of...