Thèse de doctorat : Université de Neuchâtel, 2019.
Chimpanzees (Pan troglodytes) often serve as a model species to test socio-ecological theories of foraging behaviour. Due to a high degree of fission-fusion dynamics, essential foraging variables, such as group size, patch size and travel distance, are expected to be more closely linked in chimpanzees than in animals that forage in cohesive groups. While it has been clearly established...
|
In: Behavioral Ecology and Sociobiology, 2014, vol. 68, no. 2, p. 321-331
|
Thèse de doctorat : Université de Neuchâtel, 2018.
The comparative approach aims to understand the uniqueness of human language and how it evolved from primitive communication systems. Black-fronted titi monkeys Callicebus nigrifrons possess two soft alarm calls: A-calls are specific to threats within the canopy while B-calls are general calls emitted to terrestrial predators but also in non-predatory contexts, while moving near the...
|
In: Science, 2019, vol. 363, no. 6434, p. 1453-1455
Chimpanzees possess a large number of behavioral and cultural traits among nonhuman species. The “disturbance hypothesis” predicts that human impact depletes resources and disrupts social learning processes necessary for behavioral and cultural transmission. We used a dataset of 144 chimpanzee communities, with information on 31 behaviors, to show that chimpanzees inhabiting areas with high...
|
Thèse de doctorat : Université de Neuchâtel, 2017.
This thesis examines wild chimpanzee tool use, with a particular focus on the ontogeny of object manipulation, as well as transmission mechanisms and possibility of cultural evolution of tool use in this species. Chimpanzees are known for their tool use proficiency and have been extensively studied regarding these skills. Previous studies on the ontogeny of tool use have focused on the...
|
Thèse de doctorat : Université de Neuchâtel, 2018.
This thesis examines wild chimpanzee mating behaviour, and considers in particular the role of communication during mating. Previous studies have focused on compiling behavioural ethograms, or on a small subset of courtship signals. More generally, research on chimpanzee sexual behaviour has rarely looked at intentional communication, but instead focused on a handful of courtship tactics, such as...
|
In: Revue Tranel, 2018, vol. 68, p. 69-75
Human communication, including language, is the product of underlying intentions that are purposely expressed, epistemically monitored and flexibly interpreted. A main question in science has been about the evolutionary origins of this cognitive capacity. One way to address the problem is by studying the natural communication of animals, particularly nonhuman primates. As everything in biology,...
|
In: International Journal of Primatology, 2013, vol. 34, no. 3, p. 644-645
|
In: International Journal of Primatology, 2011, vol. 32, no. 4, p. 914-923
|
In: Language and Cognition, 2013, vol. 5, no. 2-3, p. 133-143
|