OOIR: Observatory of International Research

Papers

(The TQCC of Primates is 3. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-06-01 to 2025-06-01.)

Article	Citations
Friends in high places: Interspecific grooming between chimpanzees and primate prey species in Budongo Forest	22
Temporal variation and age influence activity budget more than sex and reproductive status in wild brown howler monkeys (Alouatta guariba clamitans) inhabiting a large, continuous forest	19
Distribution and habitat suitability of the endangered lion-tailed macaque Macaca silenus and other primate species in the Kodagu region of the Western Ghats, India	15
Through cross-disciplinary collaboration	11
Adult–adult play in captive lowland gorillas (Gorilla gorilla gorilla)	11
Age, sex, and inflammatory markers predict chronic conditions, cardiac disease, and mortality among captive western lowland gorillas (Gorilla gorilla gorilla)	10
Precursors and aftermath of severe targeted aggression in captive cotton-top tamarins	10
Population size and habitat preference of the Omo River guereza (Colobus guereza guereza) in a multi-habitat matrix in the central highlands of Ethiopia	10
Long-term observations in the Ndoki forest resolve enduring questions about truffle foraging by western lowland gorillas	9
Metacognition in nonhuman primates: a review of current knowledge	9
First record of the southern muriqui (Brachyteles arachnoides) in the state of Minas Gerais, Brazil	8
Correction: Owl monkeys: biology, adaptive radiation, and behavioral ecology of the only nocturnal primate in the Americas, edited by Eduardo Fernandez-Duque	8
Factors influencing establishment success in reintroduced black-faced spider monkeys Ateles chamek	8
Partner choice in genito-genital rubbing among female bonobos (Pan paniscus) is highly dependent on physical proximity	8
An evaluation of thermal imaging as a welfare monitoring tool for captive chimpanzees	8
Portrayals of wild primates in documentary films: reason for concern?	7
Behavioral responses to riparian and anthropogenic edge effects in mantled howler monkeys (Alouatta palliata) in a disturbed riverine forest	7
Different: What apes can teach us about gender, by Frans de Waal	7
Genetic characterization of Macaca arctoides: A highlight of key genes and pathways	7
Notes on the conservation threats to the western lesser spot-nosed monkey (Cercopithecus petaurista buettikoferi) in the Bijagós Archipelago (Guinea-Bissau, West Africa)	7
Comparative analysis of intragroup intermale relationships: a study of wild bonobos (Pan paniscus) in Wamba, Democratic Republic of Congo and chimpanzees (Pan troglodytes) in Kalinzu Forest Reserve, U	7
Geographic, climatic, and phylogenetic drivers of variation in colobine activity budgets	7
Parallel lasers and digital photography to estimate limb size of chimpanzees (Pan troglodytes) at Ngogo, Kibale National Park, Uganda	7
Primate tales: memoirs from leaders in primatology	7
New records of the southern muriqui (Brachyteles arachnoides) in Serra da Mantiqueira through thermal drones	7

A case of suspected chimpanzee scavenging in the Issa Valley, Tanzania	7
Reactions to a dead adult female in Japanese macaques at Arashiyama: Why did a non-affiliated female groom the corpse?	7
Sketches of chimpanzee (Pan troglodytes) hoo’s: vowels by any other name?	6
Primate population dynamics in Ngogo, Kibale National Park, Uganda, over nearly five decades	6
Correction: Path To Acceptance and Refined Practices for Habituating Western Lowland Gorillas	6
Correction: A cooperation experiment with white-handed gibbons (Hylobates lar)	6
Pattern and pace of morphological change due to variable human impact: the case of Japanese macaques	6
A report of stillbirth and subsequent maternal cannibalism observed in a free-ranging group of Japanese macaques at Awajishima, Japan	6
Black capuchin monkeys dynamically adjust group spread throughout the day	6
Treatment of hepatitis in ex-biomedical chimpanzees at a Japanese sanctuary thanks to support from the general public	6
The relationship of coping style and social support variation to glucocorticoid metabolites in wild olive baboons (Papio anubis)	6
Acknowledgements	6
Correction to: Roadside monkeys: anthropogenic effects on moor macaque (Macaca maura) ranging behavior in Bantimurung Bulusaraung National Park, Sulawesi, Indonesia	6
Correction to: My path to primatology: some stories from the field	5
Acknowledgements	5
Mixed-species association and a record of a hybrid offspring between Trachypithecus pileatus and Trachypithecus phayrei in Bangladesh	5
Analysis of palmprints and soleprints of black-tufted marmosets (Callithrix penicillata): are there similarities to humans?	5
Population differences in putty-nosed monkey (Cercopithecus nictitans) call order	5
Correction to: Fission–fusion dynamics in a wild group of Japanese macaques (Macaca fuscata) on Kinkazan Island caused by the repeated separation of an alpha male being followed by females	5
Acknowledgements	5
Correction: Primate population dynamics in Ngogo, Kibale National Park, Uganda, over nearly five decades	5
The Primates 2021 Social Impact Award	4
Great apes’ understanding of biomechanics: eye-tracking experiments using three-dimensional computer-generated animations	4
Monitoring the population and distribution of the proboscis monkey (Nasalis larvatus) in the Klias Peninsula, Sabah, Borneo, Malaysia: insights from an 18-year study	4
The Primates 2024 most-cited paper award	4
Wild geladas (Theropithecus gelada) in crops—more than in pasture areas—reduce aggression and affiliation	4
More than a simple fixed action pattern: Yawning in drills	4
Mantled howler monkey males assess their rivals through formant spacing of long-distance calls	4
A prosocial function of head-gaze aversion and head-cocking in common marmosets	4
From stones to sketches: investigating tracing behaviours in Japanese macaques	4
Raising the level: orangutans solve the floating peanut task without visual feedback	4
Kinematic adjustments to arboreal locomotion in Japanese macaques (Macaca fuscata)	4
New records of the white-cheeked macaque provide range extension for the endangered primate in Gaoligong Mountains	4
Architectural properties of the musculoskeletal system in the shoulder of two callitrichid primate species derived from virtual dissection	4
Opossums. An adaptive radiation of New World marsupials, by Robert S. Voss & Sharon A. Jansa	4
Genetic analysis of hybridization between white-handed (Hylobates lar) and pileated (Hylobates pileatus) gibbons in a contact zone in Khao Yai National Park, Thailand	4
Leopard predation on wild Sichuan snub-nosed monkeys	3
Professor Masao Kawai, a pioneer and leading scholar in primatology and writer of animal stories for children	3
Chimpanzees employ context-specific behavioral strategies within fission–fusion societies	3
Predatory attack on a bearded capuchin monkey by a Boa constrictor	3
Carrying the dead: behavior of a primiparous capuchin monkey mother and other individuals towards a dead infant	3
Well-digging in a community of forest-living wild East African chimpanzees (Pan troglodytes schweinfurthii)	3
Assessing the effects of survey-inherent disturbance on primate detectability: Recommendations for line transect distance sampling	3
Conservation and evolution: Inbreeding, small populations, and sex differences in life history	3
Less bins, less baboons: reducing access to anthropogenic food effectively decreases the urban foraging behavior of a troop of chacma baboons (Papio hamadryas ursinus) in a peri-urban area	3
Fragmented forest affects the southern black-horned capuchin (Sapajus nigritus cucullatus) in the Argentinean Atlantic Forest	3
Mothers stick together: how the death of an infant affects female social relationships in a group of wild bonobos (Pan paniscus)	3
Death of a one-armed blackback male due to severe injuries in a group of wild western lowland gorillas (Gorilla gorilla gorilla) in Moukalaba-Doudou National Park, Gabon	3
Reduction of bitter taste receptor gene family in folivorous colobine primates relative to omnivorous cercopithecine primates	3
Extending the conservation impact of great ape research: Flagship species sites facilitate biodiversity assessments and land preservation	3

Male adoption in the black and gold howler monkey (Alouatta caraya)	3
The Primates 2023 Social Impact Award	3
A cooperation experiment with white-handed gibbons (Hylobates lar)	3
A three-dimensional kinematic analysis of bipedal walking in a white-handed gibbon (Hylobates lar) on a horizontal pole and flat surface	3
Seasonal variation in the behavioural ecology of samango monkeys (Cercopithecus albogularis schwarzi) in a southern latitude montane environment	3
Urinary health indicators in folivorous-frugivorous primates with and without food supplementation	3
Attitudes towards urban howler monkeys (Alouatta caraya) in Paraguay	3
Habitat suitability modeling for the endangered Bengal slow loris (Nycticebus bengalensis) in the Indo-Chinese subregion of India: a case study from southern Assam (India)	3
Thanatology in the northern muriqui (Brachyteles hypoxanthus)	3
Primates and elephants in East Asia: from Neolithic to rural depopulation	3
My life with primates	3
Good case studies reveal something important	3