• Publications
  • Influence
Male chimpanzees form enduring and equitable social bonds
  • J. Mitani
  • Psychology, Biology
    Animal Behaviour
  • 1 March 2009
Why do chimpanzees hunt and share meat?
TLDR
Although several factors are likely to affect chimpanzee hunting decisions and meat sharing, results indicate that primary causes will not be found through invoking simple energetic or reproductive considerations.
Generation times in wild chimpanzees and gorillas suggest earlier divergence times in great ape and human evolution
TLDR
The human–chimpanzee split is dated to at least 7–8 million years and the population split between Neanderthals and modern humans to 400,000–800,000 y ago, which suggests that molecular divergence dates may not be in conflict with the attribution of 6- to 7-million-y-old fossils to the human lineage and 400,,000-Y-old bones to the Neanderthal lineage.
Hunting Behavior of Chimpanzees at Ngogo, Kibale National Park, Uganda
  • D. Watts, J. Mitani
  • Environmental Science
    International Journal of Primatology
  • 5 February 2002
TLDR
The first quantitative support for the argument that variation in canopy structure influences decisions to hunt red colobus is provided, and implies that the chimpanzees hunt most when they can easily meet energy needs from other sources.
Territoriality: The relation of ranging pattern and home range size to defendability, with an analysis of territoriality among primate species
  • J. Mitani, P. Rodman
  • Environmental Science
    Behavioral Ecology and Sociobiology
  • 1 September 1979
TLDR
It is argued that defendability depends on the ability of an animal to monitor the boundaries of its range in order to detect potential intruders and introduces an index of defendability (D) which is the ratio of observed daily path length to an area equal to the diameter of a circle with areaequal to home range area of the animal.
The Chimpanzees of the Budongo Forest
  • J. Mitani
  • Biology
    International Journal of Primatology
  • 13 October 2006
TLDR
In The Chimpanzees of the Budongo Forest, Reynolds reviews the results of 15 yr of behavioral research on chimpanzees and the efforts that he and others have made to protect them and it is curious and disappointing that Reynolds does not provide any comparative data to support the hypothesis that Budongo is an exceptional site in terms of fruit availability.
The limited impact of kinship on cooperation in wild chimpanzees
TLDR
It is shown that male chimpanzees clearly prefer to affiliate and cooperate with their maternal brothers in several behavioral contexts, adding to a growing body of research that indicates that animals cooperate with each other to obtain both direct and indirect fitness benefits and that complex cooperation can occur between kin and nonkin alike.
Demography, female life history, and reproductive profiles among the chimpanzees of Mahale
TLDR
The chimpanzees of the Mahale Mountains National Park, Tanzania, have been studied for more than 34 yr on the basis of individual identification and standardized attendance records to derive demographic data on disease, death, and female transfer.
Recent developments in the study of wild chimpanzee behavior
TLDR
Results from field research conducted in the Kibale National Park, Uganda are focused on, giving special emphasis to five areas: social organization, genetics and behavior, hunting and meat-eating, inter-group relationships, and behavioral endocrinology.
Kinship and social bonds in female chimpanzees (Pan troglodytes)
TLDR
The results show that, as in males, kinship plays a limited role in structuring the intrasexual social relationships of female chimpanzees, and it is demonstrated that party association is as good a predictor of spatial proximity and grooming in females as it is in males.
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