American Journal of Primatology

Article	Citations
Issue Information	32
A composite menstrual cycle of captive orangutans, with associated hormonal and behavioral variability	23
MonkeyMemoirs: Wild Life in an Amazon Wilderness By Thomas R. Defler, Vaupés, Colombia: Huacu Press, 2025. List price $40.00. (Paperback). ISBN: 979‐8‐30‐678374‐1	21
Obituary and tributes: William Alvin Mason (1926−2023)	21
Physiologic Consequences of Housing Adult Male Cynomolgus Monkeys (Macaca fascicularis) in Heterosexual Pairs: A Pilot Study Using Implanted Biotelemetry	20
Best practices are never best: Evaluating primate conservation education programs (PCEPs) with a decolonial perspective	19
Manual preference, performance, and dexterity for bimanual grass‐feeding behavior in wild geladas ( Theropithecus gelada )	17
Rhesus monkey sociality is stable across time and linked to variation in the initiation but not receipt of prosocial behavior	17
First Population Assessment Report, Suitable Habitat and Ecological Corridors of the Endangered Kashmir Gray Langur Morphotype ( Semnopithecus ajax , Poc	17
Developmental and environmental modulation of fecal thyroid hormone levels in wild Assamese macaques (Macaca assamensis)	16
Issue Information	16
Age‐related changes in hematological biomarkers in common marmosets	16
The importance of auditory, olfactory, and visual cues for insect foraging in owl monkeys (Aotus nancymaae)	14
Stone Tool Use by Black‐Horned Capuchin Monkeys (Sapajus nigritus cucullatus) in an Urban Park in Londrina, Brazil	14
A habitat stronghold on the precipice: A call‐to‐action for supporting lemur conservation in northeast Madagascar	14
Observational approaches to chimpanzee behavior in an African sanctuary: Implications for research, welfare, and capacity‐building	13
Radiographic Assessment of Spinal Degeneration in Vervet Monkeys ( Chlorocebus aethiops ): Prevalence, Patterns, and Relevance to Primate Aging Models	13
Issue Information	13
Postural Infant Carrying Adaptations by Wild Eastern Chimpanzees ( Pan troglodytes schweinfurthii ) With Limb Disabilities	13
Assessing Gestation and Fetal Sex in Wild Assamese Macaques Using Urinary Estrogen Analysis	13
Collective Acoustics in Pan: Conserved Roots in the Evolution of Human Musicality	13
Feeding Platforms as an Effective Strategy to Prevent the Consumption of Refuse by Urban Populations of Capuchin Monkeys (Sapajus libidinosus)	12
Influence of Tourist Group Size and Behavior on Indri ( Indri indri ) Responses During Encounters in Analamazaotra Forest, Madagascar	12
Is Extended Lactation Nutritionally Important for the Weaning of Wild Toque Macaques, Macaca sinica? Evidence From Milk Composition	12
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Plant secondary metabolites and primate food choices: A meta‐analysis and future directions	11
Wild Tibetan Macaques Use a Route‐Based Mental Map to Navigate in Large‐Scale Space	11
Dental Fluctuating Asymmetry: Environmental Factors Influencing Cayo Santiago Rhesus Macaque ( Macaca mulatta ) Dental Development	11
The social and defensive function of olfactory behaviors in a pair‐living sexually monogamous primate	11
Habitat Type and Group Identity Influence Activity Budgets in White‐Handed Gibbons ( Hylobates lar ) in Two Habitat Types in Western Thailand	11
Passive acoustic monitoring using smartphones reveals an alarming gibbon decline in a protected area in the central Annamite Mountains, Vietnam	11
Retracted: Tarsier islands: Exploring patterns of variation in tarsier duets from offshore islands of North Sulawesi	10
Impacts of climate change and habitat loss on the distribution of the endangered crested capuchin monkey (Sapajus robustus)	10
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Temperature and Rainfall Associate With Patterns of Parasitism in Free‐Ranging Capuchin Monkeys ( Cebus imitator )	9
Does Knowledge of the Partner's Need Affect Food Sharing in Tufted Capuchin Monkeys?	9
In vitro digestion and fermentation of Japanese macaque (Macaca fuscata) food: The influence of food type and particle size	9
Selectivity in Buttress Drumming Tree Properties Among Chimpanzees (Pan troglodytes schweinfurthii) of the Waibira Community in Budongo Forest, Uganda	8
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Issue Information	8
Bared‐teeth displays in bonobos (Pan paniscus): An assessment of the power asymmetry hypothesis	8
Use of Nonhuman Primates in Periodontal Disease Research: Contribution of the Caribbean Primate Research Center and Cayo Santiago Rhesus Colony	8
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Individual differences in sociocognitive traits in semi‐free‐ranging rhesus monkeys (Macaca mulatta)	8
Developmental milestones in captive Galago moholi	8
Fifty+ years of primate research illustrates complex drivers of abundance and increasing primate numbers	8
Age‐Related Differences in Short Term Spatial Memory in Rhesus Macaques	7
Supplementation With Human Foods Affects the Gut Microbiota of Wild Howler Monkeys	7
Energetic Priorities Across the Stages of Development: Effects of Age, Sex, and Seasonal Reproduction on Activity Budgets in Verreaux's sifaka (Propithecus verreauxi)	7
Carbon and Nitrogen Stable Isotopic Profiling of Chimpanzees and Monkeys in Kalinzu Forest Reserve, Uganda	7
Cortisol levels across the lifespan in common marmosets (Callithrix jacchus)	7
Correction to Naïve orangutans ( Pongo abelii and Pongo pygmaeus ) individually acquire nut‐cracking using	7
Program of the Forty‐Fifth Meeting of The American Society of Primatologists	7
Maternal and offspring behavior in free‐ranging Japanese and moor macaques: A comparative approach	7
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Capuchin monkeys' (Sapajus [Cebus] apella) categorization of photos of unknown male conspecifics suggests attention to fWHR and a dominance bias	7
Masthead	7
Using Deep Learning to Automate Orangutan Nest Detections on Aerial Images Collected With Drones	6
Influence of COVID‐19 on the emergence of stone‐tool use behavior in a population of common long‐tailed macaques (Macaca fascicularis fascicularis) in Thailand	6
Habitual ground nesting in the Bugoma Forest chimpanzees ( Pan troglodytes schweinfurthii ), Uganda	6
Pied tamarins change their vocal behavior in response to noise levels in the largest city in the Amazon	6
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Pigtail Macaque (Macaca nemestrina) Performance Differs Across Multiple Cognitive Domains in Comparison to Rhesus Macaques (Macaca mulatta)	6
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Polyadic Grooming Patterns and Network in a Free‐Ranging Group of Japanese Macaques at Awajishima	6
Application of a parallel laser apparatus to measure forearms and flanges of wild Bornean orangutans (Pongo pygmaeus wurmbii)	6
Teeth Baring as a Model to Understand Complex Facial Signals in a Tolerant Macaque Species	6
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Absence of Blood Chimerism in Twin Goeldi's Monkeys (Callimico goeldii): Implications for Interpreting Callitrichid Phylogeny	6
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From Hotspots to Action: Spatial Risk and Habitat Priorities for Human–Macaque Coexistence in the Hindu Raj Mountains, Pakistan	6
Variation in Maternal Effort, Activity Budgets, and Feeding Behavior in Wild Saddleback Tamarins (Leontocebus weddelli) in Northwestern Bolivia	6
Is the long‐tailed macaque at risk of extinction?	6
Ontogenesis of sociability of wild immature capuchin monkeys (Sapajus libidinosus): Sex more than personality explains interindividual variation	6

Validation of Body Condition Scoring as a Screening Test for Low Body Condition and Obesity in Common Marmosets (Callithrix jacchus)	6
Issue Information	6
Estimation of White‐Handed Gibbon Density and Population Size in Huai Kha Khaeng Wildlife Sanctuary, Western Thailand	6
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How individual, social, and ecological conditions influence dispersal decisions in male vervet monkeys	5
Issue Information	5
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Dietary flexibility of the greater bamboo lemur (Prolemur simus), a specialized feeder, in eastern Madagascar	5
Environmental and Temporal Effects on Vocal Activity in a Nocturnal Primate: Implications for Passive Acoustic Monitoring	5
Investigating infant feeding development in wild chimpanzees using stable isotopes of naturally shed hair	5
Social Rank, Female Competition for Food, and Behavioral Time‐Budgets in the Golden Snub‐Nosed Monkey Rhinopithecus roxellana Multi‐Level Society	5
Issue Information	5
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Unveiling the Evolutionary History of cis‐Andean Alouatta (Atelidae, Alouattinae) Through Mitochondrial Genomes	5
Vocalizations Reveal Species Differences in Endangered Lion Tamarins (Primates, Callitrichidae)	5
Charles T. Snowdon (Chuck) 1941–2023	5
Stable Isotopes Analysis of Black Lion Tamarins Reveals Increasing Arthropod Consumption When Fruit Productivity Decreases in Forest Fragments	5
Increased physical activity is not related to markers of cardiometabolic health in two lemur species	5
Establishment and Validation of Fecal Secretory Immunoglobulin A Measurement for Intestinal Mucosal Health Assessment in Wild Lemurs	5
Yawn Contagion and Modality‐Matching in the Female‐Bonded Society of Geladas (Theropithecus gelada)	5
Avoiding Cognitive Trap in Habitat Restoration: A Case Study of the World's Rarest Primate	5
Assessing color cues of development, breeding status and reproductive condition in captive golden lion tamarins (Leontopithecus rosalia)	5
Trigger of twin‐fights in captive common marmosets	5
CSViewer for Analysts: II. Analytic Tools and Visualization of Founder Lineages, Social Groups, and Reproduction Dynamics of the Cayo Santiago Rhesus Macaque Colony	5
Issue Information	5
Oesophagostomum stephanostomum causing parasitic granulomas in wild chimpanzees (Pan troglodytes verus) of Taï National Park, Côte d'Ivoire	5
Linking glucocorticoid variations to monthly and daily behavior in a wild endangered neotropical primate	5
Temperature‐Related Differences in Hair Cortisol Among Outdoor‐Housed Rhesus Macaques (Macaca mulatta)	5
Quantitative Analysis of the Carpal Tunnel and Its Inner Structures in Primates	5
State‐dependent risky choices in primates: Variation in energy budget does not affect tufted capuchin monkeys' (Sapajus spp.) risky choices	5
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Sexual Signaling and Sociosexual Behaviors in Relation to Rank, Parasites, Hormones, and Age in Male Vervet Monkeys (Chlorocebus pygerythrus) in Uganda	4
Issue Information	4
Influence of landscape structure on previous exposure to Leptospira spp. and Brucella abortus in free‐living neotropical primates from southern Brazil	4
Mitochondrial DNA for Phylogeny Building: Assessing Individual and Grouped mtGenes as Proxies for the mtGenome in Platyrrhines	4
Primate conservation: A public issue?	4
Cover Image	4
An effect of canopy bridges on monkey‐vehicle collision hotspots: Spatial and spatiotemporal analyses	4
Losing lemurs: Declining populations and land cover changes over space and time	4
Landscape Attributes Shape Population Density Patterns of Black and Gold Howler Monkeys ( Alouatta caraya ) Across Their Southern Range	4
Advancing primate surveillance with image recognition techniques from unmanned aerial vehicles	4
Development and assessment of a stair ascension challenge as a measure of aging and physical function in nonhuman primates	4
The Earliest Known Radiation of Pitheciine Primates	4
Review of Primates in Anthropogenic Landscapes: Exploring Primate Behavioural Flexibility Across Human Contexts, Edited by TracieMcKinney, SiânWaters, Michelle A.Rodrigues. Cham, Switzerland: S	4
Variation in monthly and seasonal elevation use impacts behavioral and dietary flexibility in Rhinopithecus bieti	4
Moving	4
Comparing the Performances of Chimpanzees (Pan troglodytes) and Gorillas (Gorilla gorilla gorilla) in Two Self‐Awareness Tasks	4
Cognitive performance of grey mouse lemurs (Microcebus murinus) during a discrimination learning task: Effect of the emotional valence of stimuli	4
A novel methodological approach for group classification during fission of a semi‐free‐ranging group of Japanese macaques (Macaca fuscata)	4
Issue Information	4
Identification of potentially zoonotic parasites in captive orangutans and semi‐captive mandrills: Phylogeny and morphological comparison	4
Effects of Social Pairing on Measurable Disease Outcomes in Hospitalized Rhesus Macaques ( Macaca mulatta )	4
Coming to the Caribbean: Eighty‐five years of rhesus macaques (Macaca mulatta) at Cayo Santiago—A rare nonhuman primate model for the studies of adaptation, diseases, genetics, natural disaster	4
Camera traps unveil demography, social structure, and home range of six unhabituated Western chimpanzee groups in the Moyen Bafing National Park, Guinea	4
Insights Into Variations in the Gut Virome of Tibetan Macaques ( Macaca thibetana ) Across Wild, Captive, and Semi‐Provisioned Environments	4
Masthead	4
Sniffing behavior of semi free‐ranging Barbary macaques ( Macaca sylvanus )	4
Contexts of Anointing Behavior in a Group of Blond Capuchin Monkeys ( Sapajus flavius ) Inhabiting an Atlantic Forest Fragment	4
Taphonomy of harpy eagle predation on primates and other mammals	4
The development of sex differences in play in wild white‐faced capuchins ( Cebus capucinus )	4
Male Infanticide in the Northern Purple‐Faced Langur (Semnopithecus vetulus Philbricki) in the Kaludiyapukuna Forest Reserve, Sri Lanka	4
The Importance of Sociality and Diet in Explaining Variation in the Bonobo Gut Microbiota	4
Issue Information	4
Social and nonsocial stimuli alter the performance of bonobos during a pictorial emotional Stroop task	4
Is Primate Cone Ratio Variation Functional and Adaptive?	4
Diet and seed dispersal of bearded capuchin monkeys (Sapajus libidinosus) in Brasilia National Park	4
A Collaborative, Multi‐Institutional Growth Standard for Dam‐Reared Infant Rhesus and Pigtail Macaques ( Macaca mulatta and Macaca	3
Repeatability of measures of behavioral organization over two years in captive infant rhesus macaques, Macaca mulatta	3
Survey‐rated personality traits and experimentally measured coping style and stress reactivity, in wild baboons	3
Edge effects and social behavior in three platyrrhines	3
Greetings among female chimpanzees in Mahale, Tanzania	3
Zoo studies in primate physiology, health, and welfare	3
Rhesus macaque fetal and placental growth demographics: A resource for laboratory animal researchers	3
Urinary C‐peptide and total triiodothyronine as energetic biomarkers for studies of lemurs	3
Heritability in the Rhesus Macaque (Macaca mulatta) Vertebral Column	3
Food Distribution, But Not Market Forces, Predict Behavioral Social Tolerance in Rhesus Macaques	3
Is it for real? Structural differences between play and real fighting in adult chimpanzees (Pan troglodytes)	3
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Quantifying Dietary Breadth in Howlers: How Much Sampling Is Enough?	3
Issue Information	3

Impact of Environmental and Anthropogenic Factors on Mandrill ( Mandrillus sphinx ) Occupancy and Habitat Use in Monte Alén National Park, Equatorial Gui	3
Detection of Filariid Infections in Mexican Primate Populations Through qPCR	3
Estimating Abundance of Crop‐Foraging Primates in Anthropogenic Landscapes Using Camera Traps	3
Issue Information	3
Performance of autonomous recorders to detect a cryptic and endangered primate species, the black lion‐tamarin (Leontopithecus chrysopygus)	3
Using 3D Photogrammetry to Quantify Usable Space in Zoo‐Housed Primate Habitats	3
Primates and disability: Behavioral flexibility and implications for resilience to environmental change	3
What we know and don't know about great ape cultural communication in the wild	3
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Why Didn't the Sifaka Cross the Road? Divergence of Propithecus edwardsi Gut Microbiomes Across Geographic Barriers in Ranomafana National Park, Madagascar	3
The ability to inhibit impulses is related to social behavior in long‐tailed macaques	3
Erratum to Primate cognition in zoos: Reviewing the impact of zoo‐based research over 15 years	3
A Reassessment of the Genomic Ancestry of the World's Largest Captive Baboon Colony	3
Prosocial or photo preferences? Gorillas' prosocial choices using a touchscreen	3
Re‐Evaluating the Demographic History of, and Inferring the Fine‐Scale Recombination Landscape For, Wild Chinese Rhesus Macaques ( Macaca mulatta )	3
Food availability and male deference in the female‐dominant ring‐tailed lemur, Lemur catta	3
Fruit Availability and Maternal Energy Expenditure Associated With Infant Independence in an Arboreal Primate (Colobus angolensis ruwenzorii)	3
Program of the Forty‐Third Meeting of The American Society of Primatologists	3
Survival rates and mortality risks of Plecturocebus cupreus at the California National Primate Research Center	3
Chimpanzee Activity and Behavioral Diversity Extends Across 24 Hours in Both Captive and Wild Settings	3
Object Manipulation and Tool Use to Access Water by Urban Robust Capuchin Monkeys ( Sapajus sp.) in Southern Brazil	3
The impact of housing on birth outcomes in breeding macaque groups across multiple research centers	3
Effects of forest fragmentation on the dietary ecology and activity of a nocturnal lemur community in North West Madagascar	3
Flexible grouping patterns in a western and eastern chimpanzee community	2
Where the small things are: Modelling edge effects on mouse lemur population density and distribution in northwestern Madagascar	2
Urinary Estradiol in Captive Bonobos: Variation With Reproductive State and Sexual Swelling	2
Alternative reproductive tactics of unflanged and flanged male orangutans revisited	2
Inquiring Pant‐Hoots in Wild Chimpanzees and the Role of Social Bonds and Group Cohesion	2
Issue Information	2
An urgent call‐to‐action to protect the nonhuman primates and Indigenous Peoples of the Brazilian Amazon	2
Mothers of disabled infants had higher cortisol levels in a free‐ranging group of Japanese macaques (Macaca fuscata)	2
Evaluating the impact of environmental education around Ranomafana National Park	2
Social tension after grooming in wild Japanese macaques (Macaca fuscata yakui) is sex specific and sensitive to social relationships	2
Comparative morphofunctional analysis of axial skeleton excluding the skull of primates based on the anatomical, radiographic, and tomographic description of the black‐striped capuchin (Sapajus lib	2
The impacts of seasonal variation and climate on food utilization in a population of critically endangered cotton‐top tamarins (Saguinus oedipus) in Colombia: A 22‐year longitudinal study	2
Behavioral and physiological response to inequity in bonobos (Pan paniscus)	2
Initial compatibility during a “Speed‐Dating” test predicts postpairing affiliation in titi monkeys (Plecturocebus cupreus)	2
Present and Future: Using Ecological Niche Modeling to Understand the Conservation Status of Alouatta caraya (Primates, Atelidae) and Promote Its Protection	2
Beware! Different methods lead to divergent results on yawn contagion modulation in bonobos	2
In memory of our mentor: Frans de Waal (1948–2024)	2
Dental findings in wild great apes from macerated skull analysis	2
Landscape and conservation genetics of western black crested gibbons (Nomascus concolor) in China	2
Correction to “Leopard predation on gelada monkeys at Guassa, Ethiopia”	2
Examining predictive meteorological variables in the singing behavior of northern white‐cheeked gibbons (Nomascus leucogenys) in northern Lao PDR	2
Ecological and genetic variables co‐vary with social group identity to shape the gut microbiome of a pair‐living primate	2
The Ontogeny of “Twitter” Calls in White‐Faced Capuchins (Cebus imitator): Usage, Context, and Acoustic Structure	2
Can we eliminate the primate pet trade in the United States?	2
COVID‐19 in a common woolly monkey (Lagothrix lagothricha): First evidence of fatal outcome in a nonhuman primate after natural SARS‐CoV‐2 infection	2
Obituary: Gary D. Mitchell, Sr	2
Early‐life behavioral features are associated with chronic emesis in rhesus macaques (Macaca mulatta)	2
Activity budget and seasonal activity shifts in sympatric lemurs: Increased lean season effort in a cathemeral frugivore contrasts with energy conservation in a diurnal folivore	2
Examining postmounting grooming in male golden snub‐nosed monkeys to investigate the functions of same‐sex mounts	2
Nutrient balancing in a fruit‐specialist primate, the black‐and‐white ruffed lemur (Varecia variegata)	2
Factors Affecting the Diet and Activity Budget of Wild Tibetan Macaques (Macaca thibetana)	2
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The influence of vegetation structure on sleeping site selection by chimpanzees (Pan troglodytes troglodytes)	2
Age‐Related Changes in Marmoset (Callithrix jacchus) Feeding Behavior and Physiology: Insights of Masticatory and Swallowing Functions	2
Applying collocation and APRIORI analyses to chimpanzee diets: Methods for investigating nonrandom food combinations in primate self‐medication	2
Habitat and ecological niche characteristics of the elusive Hairy‐eared Dwarf Lemur (Allocebus trichotis) with updated occurrence and geographic range data	2
Issue Information	2
Nocturnal Mating Behavior in Tibetan Macaques: The Low‐Ranking Male's Path to Mating Success	2
Phylogeography, genetic diversity, and intraspecific genetic structure of the black‐horned capuchin (Sapajus nigritus)	2
Personality Assessment of Synanthropic Rhesus Macaques: Implications and Challenges	2
Preliminary isotopic assessment of weaning in bonobos shows evidence for extended nursing, sibling competition and invested first‐time mothers	2
Selection and use of Sleeping Sites by Coppery titi Monkeys, Plecturocebus cupreus	2
Eat the fruit earlier: Sakis (Pithecia chrysocephala) show enhanced temporal fruit resource access compared with squirrel monkeys (Saimiri sciureus) in an urban forest fragment in Brazil	2
Issue Information	2
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Estimating the Abundance of Widely Distributed Primates	2
Issue Information	2
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Emotional states following grooming in female mandrills	2
Correction to “Characterization of the Sweet Taste Receptor T1R2/T1R3 From Chimpanzee and Comparison With the Human T1R2/T1R3”	2
Rare Long‐Term Data Reveal the Seasonal Dietary Plasticity of Mandrills (Mandrillus sphinx) in Response to Fruiting Tree Phenology	2
Expanded distribution and predicted suitable habitat for the critically endangered yellow‐tailed woolly monkey ( Lagothrix flavicauda ) in Perú	2
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Chemical cues of identity and reproductive status in Japanese macaques	2
Correction to “Neutrophil to Lymphocyte Ratio in Captive Olive Baboons ( Papio anubis ): The Effects of Age, Sex, Rearing, Stress, and Pregnancy”	2
Evaluating genital skin color as a putative sexual signal in wild saddleback (Leontocebus weddelli) and emperor (Saguinus imperator) tamarins	2
How Do Common Marmosets Maintain the Balance Between Response Execution and Action Inhibition?	2
Highs and Lows of Arboreal Life: Space use and Movement Strategies of Lion‐Tailed Macaques (Macaca silenus) in the Western Ghats of India	2
Issue Information	2
Behavioral adjustments of endangered Barbary macaques (Macaca sylvanus) living at the edge of an agricultural landscape in Morocco	2
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)	2
Continuous Audio‐Visual Sensor Monitoring Is More Effective Than Human Observers for Detecting Moor Macaques	2
Diet diversity and seasonality of robust capuchins (Sapajus sp.) in a tiny urban forest	1
Ultrasound evaluation of normal rhesus macaque fetal biometry and uteroplacental hemodynamics	1
Multiple Motivations: Agonistic Coalitions and Interventions in Blue Monkeys	1
Oxytocin increases during fur‐rubbing regardless of level of social contact in tufted capuchin monkeys	1
The State of Our Knowledge About Social Knowledge in Platyrrhine Primates: Integrating Decades of Behavioral Observation and Captive Experimentation	1
Hand preference in wild crab‐eating capuchin monkeys (Sapajus libidinosus) in the coastal area of Northest Brazil	1
Assessing the Sociodemographic Factors Associated With Mycobacterium tuberculosis Complex Infection Among Free‐Ranging Long‐Tailed Macaques (Macaca fascicularis) in Thailand	1
Host‐related and environmental factors influence long‐term ectoparasite infestation dynamics of mouse lemurs in northwestern Madagascar	1
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First noncontact millimeter‐wave radar measurement of heart rate in great apes: Validation in chimpanzees (Pan troglodytes)	1