OOIR: Observatory of International Research

Papers

(The median citation count of Primates is 1. 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 2022-05-01 to 2026-05-01.)

Article	Citations
Through cross-disciplinary collaboration	18
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	16
Friends in high places: Interspecific grooming between chimpanzees and primate prey species in Budongo Forest	15
The Primates 2025 social impact award	15
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	13
Evolutionary history of the endangered Sanje mangabey (Cercocebus sanjei) in the Udzungwa Mountains, Tanzania: inferences from phylogeography and historical niche modelling	13
Long-term observations in the Ndoki forest resolve enduring questions about truffle foraging by western lowland gorillas	12
Precursors and aftermath of severe targeted aggression in captive cotton-top tamarins	12
Partner choice in genito-genital rubbing among female bonobos (Pan paniscus) is highly dependent on physical proximity	12
First record of the southern muriqui (Brachyteles arachnoides) in the state of Minas Gerais, Brazil	12
New records of the southern muriqui (Brachyteles arachnoides) in Serra da Mantiqueira through thermal drones	11
Portrayals of wild primates in documentary films: reason for concern?	11
A case of suspected chimpanzee scavenging in the Issa Valley, Tanzania	11
Metacognition in nonhuman primates: a review of current knowledge	11
An overlooked hotspot: persistence of large polyspecific assemblages of threatened primates in the unprotected Yabassi Key Biodiversity Area	10
Changing views of evaluating species differences in comparative psychology	10
Using an ensemble modeling approach to predict the potential distribution for the Kashmir gray langur (Semnopithecus ajax)	10
Correction: Owl monkeys: biology, adaptive radiation, and behavioral ecology of the only nocturnal primate in the Americas, edited by Eduardo Fernandez-Duque	9
Genetic characterization of Macaca arctoides: A highlight of key genes and pathways	9
Notes on the conservation threats to the western lesser spot-nosed monkey (Cercopithecus petaurista buettikoferi) in the Bijagós Archipelago (Guinea-Bissau, West Africa)	9
Sketches of chimpanzee (Pan troglodytes) hoo’s: vowels by any other name?	9
Different: What apes can teach us about gender, by Frans de Waal	9
Reactions to a dead adult female in Japanese macaques at Arashiyama: Why did a non-affiliated female groom the corpse?	7
The relationship of coping style and social support variation to glucocorticoid metabolites in wild olive baboons (Papio anubis)	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

Behavioral responses to riparian and anthropogenic edge effects in mantled howler monkeys (Alouatta palliata) in a disturbed riverine forest	7
Geographic, climatic, and phylogenetic drivers of variation in colobine activity budgets	7
Primate population dynamics in Ngogo, Kibale National Park, Uganda, over nearly five decades	7
Acknowledgements	6
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	6
Analysis of palmprints and soleprints of black-tufted marmosets (Callithrix penicillata): are there similarities to humans?	6
Correction: A cooperation experiment with white-handed gibbons (Hylobates lar)	6
A report of stillbirth and subsequent maternal cannibalism observed in a free-ranging group of Japanese macaques at Awajishima, Japan	6
Treatment of hepatitis in ex-biomedical chimpanzees at a Japanese sanctuary thanks to support from the general public	6
Correction to: My path to primatology: some stories from the field	6
The Primates 2024 most-cited paper award	5
Correction: Path To Acceptance and Refined Practices for Habituating Western Lowland Gorillas	5
Acknowledgements	5
MHC-DRB heterozygosity may increase subordinate but not alpha male siring success in white-faced capuchin monkeys (Cebus imitator)	5
Population differences in putty-nosed monkey (Cercopithecus nictitans) call order	5
Mixed-species association and a record of a hybrid offspring between Trachypithecus pileatus and Trachypithecus phayrei in Bangladesh	5
Of hot springs and holobionts: linking hot spring bathing behavior, parasitism, and gut microbiome in Japanese macaques	5
Acknowledgements	5
New records of the white-cheeked macaque provide range extension for the endangered primate in Gaoligong Mountains	5
A prosocial function of head-gaze aversion and head-cocking in common marmosets	5
Correction: Primate population dynamics in Ngogo, Kibale National Park, Uganda, over nearly five decades	5
Responses of mountain gorillas (Gorilla beringei beringei) to deceased infants	5
Monitoring the population and distribution of the proboscis monkey (Nasalis larvatus) in the Klias Peninsula, Sabah, Borneo, Malaysia: insights from an 18-year study	5
Mantled howler monkey males assess their rivals through formant spacing of long-distance calls	5
Correction: Snapshots: most-cited Primates papers by decade (1950s–2020s)	4
Variation in diurnal primate biomass at different altitudinal levels in the Eastern Andes of Colombia: the role of fruit productivity	4
Multiparous and primiparous mothers partially differ in how they allocate maternal behaviour in captive western lowland gorillas (Gorilla gorilla gorilla)	4
Activity budget and feeding strategies of the San Martin titi monkey (Plecturocebus oenanthe) in large and small forest fragments	4
Seed dispersal by monk sakis (Pithecia monachus)	4
Responses to dying and dead adult companions in a free-ranging, provisioned group of Japanese macaques (Macaca fuscata)	4
Searching for evolutionary perspectives of human sociality through the eyes of gorillas	4
Publisher Correction: Retesting reverse-reward performance in capuchin monkeys (Sapajus apella) after 16 years: evidence of aging-related decline	4
More than a simple fixed action pattern: Yawning in drills	4
A new southern limit for the distribution of African great apes: sympatric western lowland gorilla (Gorilla gorilla gorilla) and central chimpanzee (Pan troglodytes troglodytes) confirmed in Mayombe N	4
From stones to sketches: investigating tracing behaviours in Japanese macaques	4
The perineal organ of male red colobus: its structure and possible social function as a mimic of female genitalia	4
Activity budget and diet of the two groups of olive baboons (Papio anubis) in Chato Natural forest, western Ethiopia	4
First observation of a leucistic bearded capuchin monkey (Sapajus libidinosus)	4
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
Extending the conservation impact of great ape research: Flagship species sites facilitate biodiversity assessments and land preservation	3
Leopard predation on wild Sichuan snub-nosed monkeys	3
Conservation and evolution: Inbreeding, small populations, and sex differences in life history	3
A cooperation experiment with white-handed gibbons (Hylobates lar)	3
Good case studies reveal something important	3
Chimpanzees employ context-specific behavioral strategies within fission–fusion societies	3
Male adoption in the black and gold howler monkey (Alouatta caraya)	3
The Primates 2023 Social Impact Award	3
Greater occupancy of invasive hybrid marmosets compared to a threatened native species in the fragmented Atlantic Forest: implications for conservation	3
Fragmented forest affects the southern black-horned capuchin (Sapajus nigritus cucullatus) in the Argentinean Atlantic Forest	3
Correction: Population genetics of captive spider monkeys in Japan for ex situ conservation	3

Assessing the effects of survey-inherent disturbance on primate detectability: Recommendations for line transect distance sampling	3
Acknowledgements	3
Thanatology in the northern muriqui (Brachyteles hypoxanthus)	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
A three-dimensional kinematic analysis of bipedal walking in a white-handed gibbon (Hylobates lar) on a horizontal pole and flat surface	3
My life with primates	3
Urinary health indicators in folivorous-frugivorous primates with and without food supplementation	3
A case of intercommunity lethal aggression by chimpanzees in an open and dry landscape, Issa Valley, western Tanzania	2
Predatory attack on a bearded capuchin monkey by a Boa constrictor	2
Mantled howler monkeys avoid humans in response to both worker presence and noise intensity in an agroforestry system	2
A simple suitability index to guide site selection for primate translocations: an example from northeastern Brazil	2
Activity budgets and the effect of weather over a 10 year period in Critically Endangered yellow-tailed woolly monkeys (Lagothrix flavicauda) at El Toro, Peru	2
What fieldwork makes possible: perspectives from Japanese primatology in a technological era	2
Hierarchical object combination and tool use in the great apes and human children	2
Predation of Macaca cyclopis on flying bees	2
Characterizing group and individual engagement in intergroup encounters between small groups of ring-tailed lemurs (Lemur catta) on St. Catherines Island, USA	2
Infant adoptions in wild bonnet macaques (Macaca radiata)	2
Nest raiding by bonnet macaques (Macaca radiata) and the response of nest guarding birds in a suburban habitat	2
Carrying the dead: behavior of a primiparous capuchin monkey mother and other individuals towards a dead infant	2
Reduction of bitter taste receptor gene family in folivorous colobine primates relative to omnivorous cercopithecine primates	2
Advancements in comparative omics analysis of human and non-human primate brains and their implications for the evolution of cognitive functions	2
Well-digging in a community of forest-living wild East African chimpanzees (Pan troglodytes schweinfurthii)	2
Cognitive enrichment in a social setting: assessing the use of a novel food maze in sanctuary-housed chimpanzees	2
Food preferences and nutrient composition in captive Southern brown howler monkeys, Alouatta guariba clamitans	2
My path to primatology: some stories from the field	2
Deep learning for automatic facial detection and recognition in Japanese macaques: illuminating social networks	2
First record of albinism in the black-fronted titi monkey using a dual-sensor drone: an unprecedented case in Neotropical primates	2
Correction: Walking with Gorillas: The Journey of an African Wildlife Vet, by Dr Gladys Kalema-Zikusoka	2
Monkey memoirs: wild life in an Amazon wilderness, Thomas R. Defler	2
Spider monkeys (Ateles geoffroyi) are vocally active throughout the night in a human-modified habitat	2
My journey into primatology	2
Primates and elephants in East Asia: from Neolithic to rural depopulation	2
Reflections on connections	2
A new addition to the toolbox: stone tool use in blonde capuchin monkeys (Sapajus flavius)	2
Mantled howler monkeys (Alouatta palliata) alter activity and spatial cohesion across a continuous forest and forest fragment in Costa Rica	2
Life and death of a disabled wild capuchin monkey infant	2
Owl Monkeys: Biology, Adaptive Radiation, and Behavioral Ecology of the Only Nocturnal Primate in the Americas, edited by Eduardo Fernandez-Duque	2
Domestic chicken predation and prey sharing by urban capuchin monkeys (Sapajus sp.)	2
A review of great ape behavioural responses and their outcomes to anthropogenic landscapes	2
Twenty-five years of primate research in the Ndoki forest, Republic of Congo	1
Immunoglobulin heavy constant gamma gene evolution is modulated by both the divergent and birth-and-death evolutionary models	1
Toxic tasting: how capuchin monkeys avoid grasshoppers’ chemical defenses	1
Spatial organization of mantled howler monkeys in relation to dog disturbance	1
Great apes reach momentary altered mental states by spinning	1
Maternal exploitation: impact of maternal food snatching behaviour on the growth of their offspring in Japanese macaques	1
Paternal behavior in captive fat-tailed dwarf lemurs (Cheirogaleus medius) is preserved under socially relevant conditions	1
Correction to: Why bonobos show a high reproductive skew towards high-ranking males: analyses for association and mating patterns concerning female sexual states	1
Chimpanzee memoirs. Stories of studying and saving our closest living relatives, by Stephen Ross & Lydia Hopper (eds.)	1
Rub-thin-fracture-extract: first records of hermit crab predation and non-tool shell processing by coastal long-tailed Macaques at Wat Takiap, Thailand	1
Distribution and diversity of primates and threats to their survival in the Awi Zone, northwestern Ethiopia	1
News and Perspectives: Words matter in primatology	1
The effects of early life rearing experiences and age on sociality in captive olive baboons (Papio anubis)	1
Stillbirth of a mandrill (Mandrillus sphinx) in the wild: perinatal behaviors and delivery sequences	1
Water scooping: tool use by a wild bonobo (Pan paniscus) at LuiKotale, a case report	1
Announcement: ownership of Primates transferred to Primate Society of Japan from Japan Monkey Centre	1
Birth of a wild black howler monkey (Alouatta pigra) at an anthropogenic site	1
Immunohematological features of free-living Alouatta belzebul (Linnaeus, 1766) red-handed howler monkeys in the Eastern Amazon	1
Savanna chimpanzee (Pan troglodytes) crop feeding at Dindefelo, Senegal: challenges and implications for conservation	1
A preliminary study on home range and daily travel distance of François’ langur in a high-altitude area	1
Cover illustration of Primates vol. 67 (2026)	1
Seasonal food changes and feeding behaviour adaptations of savanna chimpanzees at Nguye in Ugalla, Tanzania	1
The Primates 2023 most-cited paper award	1
No systematic difference in obesity susceptibility between two groups of zoo primates with distinct digestive physiologies: hindgut-fermenting lemurs and foregut-fermenting colobines	1
Population densities of black-and-gold howler monkeys (Alouatta caraya) in northeastern Argentina and the possible influence of a yellow fever outbreak	1
Snapshots: most-cited Primates papers by decade (1950s–2020s)	1
Heavy metal ecotoxicology of vervet monkeys (Chlorocebus pygerythrus) across field sites in South Africa	1
Bioacoustic characterization of the black-and-white ruffed lemur (Varecia variegata) vocal repertoire	1
Monkey-deer rodeo: exploring the mounting behaviours of Japanese macaques (Macaca fuscata) on Sika deer (Cervus nippon)	1
Self-interest precludes prosocial juice provisioning in a free choice group experiment in bonobos	1
Late bloomers in play: social isolation and playful skills in an adult bonobo	1
Indigenous names matter, too: Tapanuli orangutan names reflect local community perceptions	1
Correction: A case of suspected chimpanzee scavenging in the Issa Valley, Tanzania	1
Going forward: perceptual bias for forward-facing motion in chimpanzees	1
Introduction to “Evolutionary origins of human language: Hierarchical complexity and communicative signals”	1
I remember Africa: A field biologist’s half-century perspective	1
An unusual association: co-use of mineral licks by howler and spider monkeys (Alouatta sara and Ateles chamek)	1
Social network dynamics, infant loss, and gut microbiota composition in female Colobus vellerosus during time periods with alpha male challenges	1
No food left behind: foraging route choices among free-ranging Japanese macaques (Macaca fuscata) in a multi-destination array at the Awajishima Monkey Center, Japan	1
Sleeping site use of François’ langurs (Trachypithecus francoisi) inhabiting limestone forest of Nonggang, southwest China: the importance of foraging efficiency	1