OOIR: Observatory of International Research

Papers

(The TQCC of American Journal of Primatology is 4. 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 2020-11-01 to 2024-11-01.)

Article	Citations
Studies of aging nonhuman primates illuminate the etiology of early‐stage Alzheimer's‐like neuropathology: An evolutionary perspective	30
Prefrontal cortex and cognitive aging in macaque monkeys	28
Passive acoustic monitoring of the diel and annual vocal behavior of the Black and Gold Howler Monkey	23
Aging‐related Alzheimer's disease‐like neuropathology and functional decline in captive vervet monkeys (Chlorocebus aethiops sabaeus)	23
Social aging in male and female Barbary macaques	22
Tool use behavior in three wild bonobo communities at Kokolopori	19
Age‐ and cognition‐related differences in the gray matter volume of the chimpanzee brain (Pan troglodytes): A voxel‐based morphometry and conjunction analysis	18
Eye‐tracking as a window into primate social cognition	17
Temporal consistency and ecological validity of personality structure in common marmosets (Callithrix jacchus): A unifying field and laboratory approach	17
Automated pose estimation in primates	17
Ontogeny and sex differences in object manipulation and probe tool use by wild tufted capuchin monkeys (Sapajus libidinosus)	16
Age‐related changes in chimpanzee (Pan troglodytes) cognition: Cross‐sectional and longitudinal analyses	15
Opportunities for respiratory disease transmission from people to chimpanzees at an East African tourism site	15
Dramatic decline in a titi monkey population after the 2016–2018 sylvatic yellow fever outbreak in Brazil	14
Viruses associated with ill health in wild chimpanzees	14
Comparative neuropathology in aging primates: A perspective	14
Yawn contagion in bonobos: Another group, another story	14
Pairing a user‐friendly machine‐learning animal sound detector with passive acoustic surveys for occupancy modeling of an endangered primate	13
Nutritional geometry of female chimpanzees (Pan troglodytes)	13
Food availability, plant diversity, and vegetation structure drive behavioral and ecological variation in Endangered Coimbra‐Filho's titi monkeys	12
On the trail of primate scent signals: A field analysis of callitrichid scent‐gland secretions by portable gas chromatography‐mass spectrometry	12
Dental caries in wild primates: Interproximal cavities on anterior teeth	12
Improving rigor and reproducibility in nonhuman primate research	12
The consistency of individual centrality across time and networks in wild vervet monkeys	12
Quantitative estimates of glacial refugia for chimpanzees (Pan troglodytes) since the Last Interglacial (120,000 BP)	12

Filling in the gaps: Acoustic gradation increases in the vocal ontogeny of chimpanzees (Pan troglodytes)	11
The marmoset as an important primate model for longitudinal studies of neurocognitive aging	11
Ranging behavior and the potential for territoriality in pair‐living titi monkeys (Plecturocebus discolor)	11
Connecting primate gesture to the evolutionary roots of language: A systematic review	11
De‐colonizing conservation in a global world	11
Rhesus macaque fetal and placental growth demographics: A resource for laboratory animal researchers	10
Do zoo‐housed primates retreat from crowds? A simple study of five primate species	10
Plant secondary metabolites and primate food choices: A meta‐analysis and future directions	10
Male chimpanzee sexual coercion and mating success at Ngogo	10
Diet, activity patterns, and home range use in forest and cultivated areas for one wild group of endangered crested capuchin monkeys (Sapajus robustus) in Reserva Natural Vale, Espírito Santo,	10
Testing the effect of oxytocin on social grooming in bonobos	10
The factor structure of the macaque social responsiveness scale‐revised predicts social behavior and personality dimensions	10
Social and nonsocial stimuli alter the performance of bonobos during a pictorial emotional Stroop task	10
The effect of pelage, background, and distance on predator detection and the evolution of primate color vision	10
Optional tool use: The case of wild bearded capuchins (Sapajus libidinosus) cracking cashew nuts by biting or by using percussors	10
Best practices are never best: Evaluating primate conservation education programs (PCEPs) with a decolonial perspective	10
Effects of scent enrichment on behavioral and physiological indicators of stress in zoo primates	9
Color‐hierarchies in executive control of monkeys' behavior	9
Primate cognition in zoos: Reviewing the impact of zoo‐based research over 15 years	9
Do Javan gibbons (Hylobates moloch) use fruiting synchrony as a foraging strategy?	9
Factors influencing the survival of wild cotton‐top tamarin (Saguinus oedipus) infants	9
Demographic changes in an Atlantic Forest primate community following a yellow fever outbreak	9
Necropsies disclose a low helminth parasite diversity in periurban howler monkeys	9
Reproductive one health in primates	9
Nonhuman primate abnormal behavior: Etiology, assessment, and treatment	8
Exploratory analysis reveals arthropod consumption in 10 lemur species using DNA metabarcoding	8
The relationship between pinworm (Trypanoxyuris) infection and gut bacteria in wild black howler monkeys (Alouatta pigra)	8
Towards developing a rhesus monkey model of early Alzheimer's disease focusing on women's health	8
Weaning, parturitions and illnesses are recorded in rhesus macaque (Macaca mulatta) dental cementum microstructure	8
Condensed tannins in the diet of folivorous diademed sifakas and the gap between crude and available protein	8
To drum or not to drum: Selectivity in tree buttress drumming by chimpanzees (Pan troglodytes verus) in the Nimba Mountains, Guinea	8
Viruses in sanctuary chimpanzees across Africa	8
Vocal and movement responses of mantled howler monkeys (Alouatta palliata) to natural loud calls from neighbors	8
Human engagement and great ape conservation in Africa	8
Overview of age‐related changes in psychomotor and cognitive functions in a prosimian primate, the gray mouse lemur (Microcebus murinus): Recent advances in risk factors and antiaging intervent	8
Changes in Grauer's gorilla (Gorilla beringei graueri) and other primate populations in the Kahuzi‐Biega National Park and Oku Community Reserve, the heart of Grauer's gorilla global range	8
Great ape health watch: Enhancing surveillance for emerging infectious diseases in great apes	8
The costs and benefits of coexistence: What determines people's willingness to live near nonhuman primates?	7
Maderas Rainforest Conservancy: A One Health approach to conservation	7
Nonhuman primates at the intersection of aging biology, chronic disease, and health: An introduction to the American Journal of Primatology Special Issue on aging, cognitive decline, and neuropatholog	7
Removal from the wild endangers the once widespread long‐tailed macaque	7
Self‐medication in nonhuman primates: A systematic evaluation of the possible function of the use of medicinal plants	7
Self‐Injurious behavior in rhesus macaques: Issues and challenges	7
Variation in predicted COVID‐19 risk among lemurs and lorises	7
Anxiety in Geoffroy's spider monkeys (Ateles geoffroyi): Can scratching be used as an indicator?	7
Identification of potentially zoonotic parasites in captive orangutans and semi‐captive mandrills: Phylogeny and morphological comparison	7
Sensitivity to the communicative partner's attentional state: A developmental study on mother–infant dyads in wild chimpanzees (Pan troglodytes schweinfurthii)	7
High flexibility in diet and ranging patterns in two golden monkey (Cercopithecus mitis kandti) populations in Rwanda	7
Anything for a cheerio: Brown capuchins (Sapajus [Cebus] apella) consistently coordinate in an Assurance Game for unequal payoffs	7
The Gombe Ecosystem Health Project: 16 years of program evolution and lessons learned	7

The role of great ape behavioral ecology in One Health: Implications for captive welfare and re‐habilitation success	7
Captive great apes tend to innovate simple tool behaviors quickly	6
Naïve orangutans (Pongo abelii and Pongo pygmaeus) individually acquire nut‐cracking using hammer tools	6
Mother‐offspring proximity maintenance as an infanticide avoidance strategy in bornean orangutans (Pongo pygmaeus wurmbii)	6
The role of hunting onSapajus xanthosternos'landscape of fear in the Atlantic Forest, Brazil	6
Environmental and anthropogenic effects on the nesting patterns of Nigeria–Cameroon chimpanzees in North‐West Cameroon	6
First observation of a chimpanzee with albinism in the wild: Social interactions and subsequent infanticide	6
Do chimpanzees enjoy a virtual forest? A pilot investigation of the use of interactive art as a form of environmental enrichment for zoo‐housed chimpanzees	6
Not all yawns tell the same story: The case of Tonkean macaques	6
Home range, sleeping site use, and band fissioning in hamadryas baboons: Improved estimates using GPS collars	6
Do zoo animals use off‐exhibit areas to avoid noise? A case study exploring the influence of sound on the behavior, physiology, and space use of two pied tamarins (Saguinus bicolor)	6
Prevalence and diversity of gastrointestinal parasites in free‐ranging rhesus macaques (Macaca mulatta) in different land gradients of Bangladesh	6
What fecal analyses reveal about Manniophyton fulvum consumption in LuiKotale bonobos (Pan paniscus): A medicinal plant revisited	6
Chimpanzee pant‐hoots encode individual information more reliably than group differences	6
Importance of subterranean fungi in the diet of bonobos in Kokolopori	6
Linking howler monkey ranging and defecation patterns to primary and secondary seed dispersal	6
Improving transparency—A call to include social housing information in biomedical research articles involving nonhuman primates	6
Population structure, intergroup interaction, and human contact govern infectious disease impacts in mountain gorilla populations	5
Survey‐rated personality traits and experimentally measured coping style and stress reactivity, in wild baboons	5
Investment in science can mitigate the negative impacts of land use on declining primate populations	5
A decade of proboscis monkey (Nasalis larvatus) population monitoring in Balikpapan Bay: Confronting predictions with empirical data	5
An urgent call‐to‐action to protect the nonhuman primates and Indigenous Peoples of the Brazilian Amazon	5
Range‐wide indicators of African great ape density distribution	5
Reproductive seasonality in two sympatric primates (Ateles belzebuth and Lagothrix lagotricha poeppigii) from Amazonian Ecuador	5
Temperature and exudativory as drivers of the marmoset (Callithrixspp.) daily activity period	5
Manipulative repertoire of bonobos (Pan paniscus) in spontaneous feeding situation	5
Hand preference predicts behavioral responses to threats in Barbary macaques	5
Diet diversity and seasonality of robust capuchins (Sapajus sp.) in a tiny urban forest	5
External environmental conditions impact nocturnal activity levels in proboscis monkeys (Nasalis larvatus) living in Sabah, Malaysia	5
The influence of anthropogenic noise on the behavior of male mantled howler monkeys	5
Socially mediated overlap in vocal interactions between free‐ranging black howler monkeys	5
The potential interplay between the glandular microbiome and scent marking behavior in owl monkeys (Aotus nancymaae)	5
The influence of seasonality, anthropogenic disturbances, and cyclonic activity on the behavior of northern sportive lemurs (Lepilemur septentrionalis) at Montagne des Français, Madagascar	5
Stomach and colonic microbiome of wild Japanese macaques	5
Comprehensive search filters for retrieving publications on nonhuman primates for literature reviews (filterNHP)	4
Reproductive endocrinology of wild female woolly monkeys (Lagothrix lagotricha poeppigii) during puberty, ovarian cyclicity, and pregnancy	4
A natural history of Chlorocebus dryas from camera traps in Lomami National Park and its buffer zone, Democratic Republic of the Congo, with notes on the species status of Cercopithecus salo	4
Social relationships among captive male pygmy slow lorises (Nycticebus pygmaeus): Is forming male same‐sex pairs a feasible management strategy?	4
Quantification of enamel decussation in gracile and robust capuchins (Cebus, Sapajus, Cebidae, Platyrrhini)	4
Factors influencing the success of male introductions into groups of female rhesus macaques: Introduction technique, male characteristics and female behavior	4
Joint intergroup aggression in female colobus monkeys (Colobus vellerosus) is associated with grooming bonds, male participation, and group size	4
Habitat and ecological niche characteristics of the elusive Hairy‐eared Dwarf Lemur (Allocebus trichotis) with updated occurrence and geographic range data	4
Habitat use by the island lemurs of Nosy Be, Madagascar	4
The gut microbiota of gibbons across host genus and captive site in China	4
Disassociation of social and sexual partner relationships in a gibbon population with stable one‐male two‐female groups	4
Mitochondrial genetic diversity and divergence dating of Angolan colobus monkeys (Colobus angolensis) in the eastern forests of Kenya and Tanzania: Implications for subspeciation and reconstruc	4
Dexterity and technique in termite fishing by chimpanzees (Pan troglodytes troglodytes) in the Goualougo Triangle, Republic of Congo	4
Chemical cues of identity and reproductive status in Japanese macaques	4
The 10th anniversary of the scientific description of the black snub‐nosed monkey (Rhinopithecus strykeri): It is time to initiate a set of new management strategies to save this critically end	4
Lemur paparazzi: Arboreal camera trapping and occupancy modeling as conservation tools for monitoring threatened lemur species	4
A habitat stronghold on the precipice: A call‐to‐action for supporting lemur conservation in northeast Madagascar	4
Observational approaches to chimpanzee behavior in an African sanctuary: Implications for research, welfare, and capacity‐building	4
Pathological lesions of the digestive tract in free‐ranging mountain gorillas (Gorilla beringei beringei)	4
Group structure, but not dominance rank, predicts fecal androgen metabolite concentrations of wild male mountain gorillas (Gorilla beringei beringei)	4
Performance of autonomous recorders to detect a cryptic and endangered primate species, the black lion‐tamarin (Leontopithecus chrysopygus)	4
Comparative performance of orangutans (Pongo spp.), gorillas (Gorilla gorilla gorilla), and drills (Mandrillus leucophaeus), in an ephemeral foraging task	4
Grooming site preferences in black capuchin monkeys: Hygienic vs. social functions revisited	4
Dominance and social interaction patterns in brown capuchin monkey (Cebus [Sapajus] apella) social networks	4
Primatology in zoos: Studying behavior, cognition, and welfare	4
What's not to like about Likert? Developing a nonverbal animal preference scale (NAPS)	4
Mobonda Community Conservation Project: Chimpanzees, oysters, and community engagement in Sierra Leone	4
Adult male–female social bond advertising: The primary function of coordinated singing intensity in a small ape	4