J C Mitani
Biographic Data
| ID | 13495 |
|---|---|
| NAME | J C Mitani |
| GIVEN NAMES | J C |
| FAMILY NAME | Mitani |
| SIGNATURE | MITANI J C |
| AFFILIATIONS | University of Michigan |
| ORCID | 0000-0001-7042-5854 |
| VERIFIED | Yes |
| TOTAL WORKS | 67 |
| TOTAL CITATIONS | 248 |
| AUTHOR COUNT | 67 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1979 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 8 |
Removing snares is an effective conservation intervention
Future coexistence with great apes will require major changes to policy and practice
Primate population dynamics in Ngogo, Kibale National Park, Uganda, over nearly five decades
White sclera is present in chimpanzees and other mammals
Primate tales
I remember Africa
Viruses associated with ill health in wild chimpanzees
Viral infection is a major cause of ill health in wild chimpanzees ( Pan troglodytes ), but most evidence to date has come from conspicuous disease outbreaks with high morbidity and mortality. To examine the relationship between viral infection and ill health during periods not associated with disease outbreaks, we conducted a longitudinal study of wild eastern chimpanzees ( P. t. schweinfurthii ) in the Kanyawara and Ngogo communities of Kibale …
My life among the apes
I have spent over 40 years studying the behavior of our closest living relatives, the apes. In this paper, I review my research on the spacing, mating, and vocal behavior of gibbons and orangutans ( Pongo pygmaeus ) and the vocal and social behavior of chimpanzees ( Pan troglodytes ). I devote special attention to results derived from a 25‐year‐long study of a remarkable and extraordinarily large group of chimpanzees that has recently fissioned a…
A chimpanzee enamel-diet δ13C enrichment factor and a refined enamel sampling strategy
Social Network Predicts Exposure to Respiratory Infection in a Wild Chimpanzee Group
Adolescent male chimpanzees ( Pan troglodytes ) form social bonds with their brothers and others during the transition to adulthood
Social relationships play an important role in animal behavior. Bonds with kin provide indirect fitness benefits, and those with nonkin may furnish direct benefits. Adult male chimpanzees ( Pan troglodytes ) exhibit social bonds with maternal brothers as well as unrelated adult males, facilitating cooperative behavior, but it is unclear when these bonds develop. Prior studies suggest that social bonds emerge during adolescence. Alternatively, bon…
Adolescent and young adult male chimpanzees form affiliative, yet aggressive, relationships with females
Social relationships and caregiving behavior between recently orphaned chimpanzee siblings
Adolescent male chimpanzees do not form a dominance hierarchy with their peers
Favorable ecological circumstances promote life expectancy in chimpanzees similar to that of human hunter-gatherers
Remembering Jerry Lwanga
Long bone cross‐sectional properties reflect changes in locomotor behavior in developing chimpanzees
OBJECTIVES: Recent studies indicate that the locomotor behavior of wild chimpanzees changes during development. Before transitioning to quadrupedal knuckle-walking in adulthood, young chimpanzees engage in a significant amount of upper limb loading suspensory behavior. We investigated whether these dramatic changes in locomotion influence the strength and shape of chimpanzee long bones. MATERIALS AND METHODS: We examined changes in chimpanzee arb…
Assessing sources of error in comparative analyses of primate behavior
Hunting and Prey Switching by Chimpanzees (Pan troglodytes schweinfurthii) at Ngogo
Lethal aggression in Pan is better explained by adaptive strategies than human impacts
Data Quality and the Comparative Method
Locomotor and postural development of wild chimpanzees
Ranging behavior of Mahale chimpanzees
Female parity, male aggression, and the Challenge Hypothesis in wild chimpanzees
Bernard Chapais
Hunting Behavior of Chimpanzees at Ngogo, Kibale National Park, Uganda
Locomotor and postural development of wild chimpanzees
General Gregariousness and Specific Social Preferences among Wild Chimpanzees
Long bone cross‐sectional properties reflect changes in locomotor behavior in developing chimpanzees
OBJECTIVES: Recent studies indicate that the locomotor behavior of wild chimpanzees changes during development. Before transitioning to quadrupedal knuckle-walking in adulthood, young chimpanzees engage in a significant amount of upper limb loading suspensory behavior. We investigated whether these dramatic changes in locomotion influence the strength and shape of chimpanzee long bones. MATERIALS AND METHODS: We examined changes in chimpanzee arb…
Primate Community Dynamics in Old Growth Forest over 23.5 Years at Ngogo, Kibale National Park, Uganda
Taphonomic Aspects of Crowned Hawk-Eagle Predation on Monkeys
Favorable ecological circumstances promote life expectancy in chimpanzees similar to that of human hunter-gatherers
Demography of agile gibbons (Hylobates agilis)
Data Quality and the Comparative Method
Taphonomic analysis of skeletal remains from chimpanzee hunts at Ngogo, Kibale National Park, Uganda
Assessing sources of error in comparative analyses of primate behavior
Selection for acoustic individuality within the vocal repertoire of wild chimpanzees
Experimental field studies of Asian ape social systems
Species and sex differences in the screams of chimpanzees and bonobos
Adolescent and young adult male chimpanzees form affiliative, yet aggressive, relationships with females
Hunting and Prey Switching by Chimpanzees (Pan troglodytes schweinfurthii) at Ngogo
Future coexistence with great apes will require major changes to policy and practice
White sclera is present in chimpanzees and other mammals
A chimpanzee enamel-diet δ13C enrichment factor and a refined enamel sampling strategy
Territoriality
Physical
Species discrimination of male song in gibbons
Acoustic analyses and field playback experiments were conducted to investigate interspecific song differences and discrimination in male gibbons. Songs were recorded and analyzed from males of three populations: agile gibbons ( Hylobates agilis ) in West Kalimantan and South Sumatra and Müller's gibbons ( Hylobates muelleri ) in East Kalimantan. Male songs from each of the three populations were played back to West Kalimantan agile gibbons. Acous…
Orangutan activity budgets
The activity budgets of individual orangutans were investigated at the Kutai Reserve, Indonesia. Activity profiles within and between individuals were compared to examine monthly variations in feeding patterns, potential energetic constraints imposed by large body size and parturition, and the costs of sociality. Animals showed monthly changes in travelling, feeding, and resting patterns. Monthly increases in travelling and feeding were associate…
Demography of agile gibbons (Hylobates agilis)
Experimental field studies of Asian ape social systems
Dialects in wild chimpanzees
Chimpanzees emit a loud, species‐typical long distance call known as the pant hoot. Geographic variation between the pant hoots of chimpanzees living in two neighboring populations, the Mahale Mountains and Gombe Stream National Parks, Tanzania, was examined. Analysis of six acoustic features revealed subtle differences in the way chimpanzees from the two populations called. Individuals from the Mahale study site uttered one section of their pant…
Species and sex differences in the screams of chimpanzees and bonobos
Sexual Dimorphism, the Operational Sex Ratio, and the Intensity of Male Competition in Polygynous Primates
Male mating competition is generally regarded to account for sexual dimorphism in body size, but levels of sexual dimorphism do not appear to be associated with the intensity of intrasexual selection in polygynous mammals. In contrast, observations of accentuated dimorphism in certain taxa and in large species are consistent with nonadaptive explanations for the evolution of sexual size dimorphism based on phylogenetic inertia and allometry. Here…
Number of males in primate groups
Primate social groups frequently contain multiple males. Male group size has been hypothesized to result from male mating competition, but the selective factors responsible for the evolution of multimale groups are unclear. Short breeding seasons create situations that are not conducive for single males to monopolize mating access to females, and may therefore favor the formation of large male groups. Alternatively, since the costs of mate defens…
Current topics in primate vocal communication
Selection for acoustic individuality within the vocal repertoire of wild chimpanzees
The evolution of nonhuman primate loud calls
Geographic variation in the calls of wild chimpanzees
Male chimpanzees produce a species-typical call, the pant hoot, to communicate to conspecifics over long-distances. Calls given by males from the well-known Gombe and Mahale populations typically consist of four different phases: an introduction, build-up, climax, and let-down. Recent observations suggest that chimpanzees living in the Kibale National Park, Uganda, consistently give calls that lack a build-up and are thus qualitatively distinguis…
General Gregariousness and Specific Social Preferences among Wild Chimpanzees
Demographic influences on the hunting behavior of chimpanzees
We investigated hunting in an unusually large community of wild chimpanzees at Ngogo in the Kibale National Park, Uganda. Aspects of predation were recorded with respect to the prey, the predators, and hunting episodes. During 23 months of observation, the Ngogo chimpanzees caught 128 prey items from four primate and three ungulate species. Chimpanzees preyed selectively on immature red colobus primarily during group hunts, with adult males makin…
Infanticide and cannibalism by male chimpanzees at Ngogo, Kibale National Park, Uganda
Primate Community Dynamics in Old Growth Forest over 23.5 Years at Ngogo, Kibale National Park, Uganda
Why do chimpanzees hunt and share meat?
Boundary Patrols and Intergroup Encounters in Wild Chimpanzees
Chimpanzees are among the few mammals that engage in lethal coalitionary aggression between groups. Most attacks on neighbors occur when parties made up mostly of adult males patrol boundaries of their community's range. Patrols have time, energy, and opportunity costs, and entail some risks despite the tendency of males to attack only when they greatly outnumber their targets. These factors may lead to a collective action problem. Potential bene…
New cases of inter-community infanticide by Male Chimpanzees at Ngogo, Kibale National Park, Uganda
Recent developments in the study of wild chimpanzee behavior
Hunting Behavior of Chimpanzees at Ngogo, Kibale National Park, Uganda
Meat-Eating and Human Evolution
Meat-Eating and Human Evolution. Craig B. Stanford and Henry T. Bunn. eds. New York: Oxford University Press, 2001.384 pp
Demography, female life history, and reproductive profiles among the chimpanzees of Mahale
Demography provides critical data to increase our understanding of the evolution, ecology, and conservation of primate populations. 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. From this long‐term study, we derived the following demographic data: The major cause of death was disease (48%), followed by senescence…
Biology (61 works) · Primate Behavior and Ecology (60 works) · Animal Vocal Communication and Behavior (36 works) · Zoology (34 works) · Ecology (33 works) · Demography (30 works) · Animal Behavior and Reproduction (29 works) · Animal ecology (29 works) · Ecology (26 works) · Geography (24 works)