J M Setchell
Biographic Data
| ID | 56143 |
|---|---|
| NAME | J M Setchell |
| GIVEN NAMES | J M |
| FAMILY NAME | Setchell |
| SIGNATURE | SETCHELL J M |
| AFFILIATIONS | Durham University |
| ORCID | 0000-0002-5782-1235 |
| VERIFIED | Yes |
| TOTAL WORKS | 40 |
| TOTAL CITATIONS | 234 |
| AUTHOR COUNT | 40 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2001 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 9 |
Promoting Equitable Research Partnerships in Primatology
News and Perspectives: Words matter in primatology
Postings on social media on Twitter (now X), BioAnthropology News (Facebook), and other venues, as well as recent publications in prominent journals, show that primatologists, ecologists, and other researchers are questioning the terms “Old World” and “New World” due to their colonial implications and history. The terms are offensive if they result in erasing Indigenous voices and history, ignoring the fact that Indigenous peoples were in the Ame…
Identification of potentially zoonotic parasites in captive orangutans and semi‐captive mandrills: Phylogeny and morphological comparison
Cysts and trophozoites of vestibuliferid ciliates and larvae of Strongyloides were found in fecal samples from captive orangutans Pongo pygmaeus and P. abelii from Czech and Slovak zoological gardens. As comparative material, ciliates from semi‐captive mandrills Mandrillus sphinx from Gabon were included in the study. Phylogenetic analysis of the detected vestibuliferid ciliates using ITS1‐5.8s‐rRNA‐ITS2 and partial 18S ribosomal deoxyribonucleic…
Mental health and well‐being in primatology: Breaking the taboos
We hope to raise awareness of mental health and well‐being among primatologists. With this aim in mind, we organized a workshop on mental health as part of the main program of the Winter meeting of the Primate Society of Great Britain in December 2021. The workshop was very well received. Here, we review the main issues raised in the workshop, and supplement them with our own observations, reflections, and reading. The information we gathered dur…
Chemical cues of identity and reproductive status in Japanese macaques
Olfactory communication plays an important role in the regulation of socio‐sexual interactions in mammals. There is growing evidence that both human and nonhuman primates rely on odors to inform their mating decisions. Nevertheless, studies of primate chemical ecology remain scarce due to the difficulty of obtaining and analyzing samples. We analyzed 67 urine samples from five captive female Japanese macaques ( Macaca fuscata ) and 30 vaginal swa…
Decolonizing Primate Conservation Practice: A Case Study from North Morocco
Understanding the historical context of an area enables an incoming conservationist to reflect on their role in communities and to better position themselves both politically and socially within them. Here, we explore how outside agencies and institutions, including a former colonial power, have affected and influenced local communities who share their landscape with Barbary macaques ( Macaca sylvanus ) in Bouhachem forest, north Morocco. In the …
Seasonal variation in the behavioural ecology of samango monkeys (Cercopithecus albogularis schwarzi) in a southern latitude montane environment
Dental microstructure records life history events: A histological study of mandrills (Mandrillus sphinx) from Gabon
A new identification of the monkeys depicted in a Bronze Age wall painting from Akrotiri, Thera
Aegean monkeys and the importance of cross-disciplinary collaboration in archaeoprimatology: A reply to Urbani and Youlatos
The occurrence of the red‐handed howler monkey ( Alouatta belzebul ) in amazonian savannas is related to forest patch area and density of flooded area palms
All Neotropical primates are arboreal and thus depend on forests for their survival. Arboreality puts many Neotropical primates at risk of extinction due to the high rates of deforestation in the tropics. We assessed the influence of vegetation structure and forest patch attributes on the occurrence of the threatened red‐handed howler monkey ( Alouatta belzebul ) in an Amazonian savanna. Using a sample of 38 forest patches in a region of approxim…
Odontochronologies in male and female mandrills ( Mandrillus sphinx ) and the development of dental sexual dimorphism
OBJECTIVES: We examine how dental sexual dimorphism develops in mandrills, an extremely sexually dimorphic primate. We aimed to (a) establish the chronology of dental development (odontochronology) in male and female mandrills, (b) understand interindividual and intersex variation in odontochronologies, and (c) determine how dental sexual dimorphism is achieved. MATERIALS AND METHODS: We prepared histological ground sections from the permanent te…
Introduction to the Special Section on Equity and Inclusion in Primatology
Interpreting People’s Behavior Toward Primates Using Qualitative Data: A Case Study from North Morocco
People’s perceptions of primates vary across and within cultures and may not be consistent with their behavior toward the primates themselves. We used qualitative data from semistructured and unstructured interviews with shepherds from 10 villages around Bouhachem oak forest in Morocco to describe and discuss shepherds’ behavior when they encounter Barbary macaques (Macaca sylvanus). When macaques enter agricultural fields to feed on crops, matur…
Primate Society of Great Britain Spring Meeting 2018: Cognition and communication
Biosocial Conservation: Integrating Biological and Ethnographic Methods to Study Human–Primate Interactions
Biodiversity conservation is one of the grand challenges facing society. Many people interested in biodiversity conservation have a background in wildlife biology. However, the diverse social, cultural, political, and historical factors that influence the lives of people and wildlife can be investigated fully only by incorporating social science methods, ideally within an interdisciplinary framework. Cultural hierarchies of knowledge and the hege…
Towards a Best Practice for the Use of Active Non-contact Surface Scanning to Record Human Skeletal Remains from Archaeological Contexts
Active surface scanners emit light or a laser stripe to record the exterior surface of an object or landscape, providing results in three dimensions. The use of active surface scanners to record anthropological and archaeological contexts has increased within the last few years, creating a number of sub-contexts within these disciplines and allowing a further development of certain applications, such as quantitative analysis, the use of replicas …
Sexual Selection and the differences between the sexes in M andrills ( M andrillus sphinx )
Sexual selection has become a major focus in evolutionary and behavioral ecology. It is also a popular research topic in primatology. I use studies of mandrills ( Mandrillus sphinx ), a classic example of extravagant armaments and ornaments in animals, to exemplify how a long‐term, multidisciplinary approach that integrates field observations with laboratory methods can contribute to on‐going theoretical debates in the field of sexual selection. …
Darting Primates in the Field: A Review of Reporting Trends and a Survey of Practices and Their Effect on the Primates Involved
Testing for post‐copulatory selection for major histocompatibility complex genotype in a semi‐free‐ranging primate population
A large body of evidence suggests that major histocompatibility complex (MHC) genotype influences mate choice. However, few studies have investigated MHC-mediated post-copulatory mate choice under natural, or even semi-natural, conditions. We set out to explore this question in a large semi-free-ranging population of mandrills (Mandrillus sphinx) using MHC-DRB genotypes for 127 parent-offspring triads. First, we showed that offspring MHC heterozy…
Maternal Effects and the Endocrine Regulation of Mandrill Growth
Maternal effects can influence offspring growth and development, and thus fitness. However, the physiological factors mediating these effects in nonhuman primates are not well understood. We investigated the impact of maternal effects on variation in three important components of the endocrine regulation of growth in male and female mandrills ( M andrillus sphinx ), from birth to 9 years of age. Using a mixed longitudinal set ( N = 252) of plasma…
On Editing the International Journal of Primatology
Just how flexible is behavior
Human Ability to Recognize Kin Visually Within Primates
The assessment of relatedness is a key determinant in the evolution of social behavior in primates. Humans are able to detect kin visually in their own species using facial phenotypes, and facial resemblance in turn influences both prosocial behaviors and mating decisions. This suggests that cognitive abilities that allow facial kin detection in conspecifics have been favored in the species by kin selection. We investigated the extent to which hu…
Is Brightest Best? Testing the Hamilton-Zuk Hypothesis in Mandrills
Growth and ontogeny of sexual size dimorphism in the mandrill ( Mandrillus sphinx )
We present body mass (N = 419) and crown‐rump length (CRL, N = 210) measurements from 38 male and 49 female mandrills born into a semifree‐ranging colony in order to describe growth from birth to adulthood, and to investigate maternal influences upon growth. Adult male mandrills are 3.4 times the body mass, and 1.3 times the CRL, of adult females. Body mass dimorphism arises from a combination of sex differences in length of the growth period (fe…
Reproductive Parameters and Maternal Investment in Mandrills (Mandrillus sphinx)
Biosocial Conservation: Integrating Biological and Ethnographic Methods to Study Human–Primate Interactions
Biodiversity conservation is one of the grand challenges facing society. Many people interested in biodiversity conservation have a background in wildlife biology. However, the diverse social, cultural, political, and historical factors that influence the lives of people and wildlife can be investigated fully only by incorporating social science methods, ideally within an interdisciplinary framework. Cultural hierarchies of knowledge and the hege…
Canine tooth size and fitness in male mandrills (Mandrillus sphinx)
Arrested development of secondary sexual adornments in subordinate adult male mandrills ( Mandrillus sphinx )
Previous studies of semifree‐ranging mandrills identified two morphological and social variants of the adult male, based on behavioral and secondary sexual characteristics. “Fatted” males are social, with highly developed sex skin coloration, large testes, high plasma testosterone levels, and fat rumps; while “nonfatted” males are peripheral or solitary, with paler sex skin, smaller testes, lower plasma testosterone, and slimmer rumps. We present…
Do Female Mandrills Prefer Brightly Colored Males
Ontogenetic bases of canine dimorphism in anthropoid primates
This study tests hypotheses regarding the ontogeny of canine tooth size dimorphism in five anthropoid primate species (Saguinus fuscicollis, Macaca mulatta, Cercocebus atys, Papio hamadryas, and Mandrillus sphinx). Canine measurements and chronological age data are analyzed to determine if bimaturism, a sex difference in the age at which eruption ceases, accounts for canine tooth sexual dimorphism. Canine height measurements are evaluated through…
Life history in male mandrills (Mandrillus sphinx): Physical development, dominance rank, and group association
We assess life history from birth to death in male mandrills (Mandrillus sphinx) living in a semifree-ranging colony in Gabon, using data collected for 82 males that attained at least the age of puberty, including 33 that reached adulthood and 25 that died, yielding data for their entire lifespan. We describe patterns of mortality and injuries, dominance rank, group association, growth and stature, and secondary sexual character expression across…
Social and seasonal influences on the reproductive cycle in female mandrills ( Mandrillus sphinx )
We present 12 years of perineal swelling data for a semifree‐ranging colony of mandrills ( Mandrillus sphinx ), and evaluate the influence of rank, parity, and seasonality on reproductive parameters. Female sexual swellings showed a seasonal pattern, with August the median month of ovulation. Overlapping periovulatory periods did not decrease the likelihood of conception. Females showed their first genital swelling at age 3.6 years (n = 28; range…
Parasite Prevalence, Abundance, and Diversity in a Semi-free-ranging Colony of Mandrillus sphinx
Decolonizing Primate Conservation Practice: A Case Study from North Morocco
Understanding the historical context of an area enables an incoming conservationist to reflect on their role in communities and to better position themselves both politically and socially within them. Here, we explore how outside agencies and institutions, including a former colonial power, have affected and influenced local communities who share their landscape with Barbary macaques ( Macaca sylvanus ) in Bouhachem forest, north Morocco. In the …
Is Brightest Best? Testing the Hamilton-Zuk Hypothesis in Mandrills
Sexual Selection and the differences between the sexes in M andrills ( M andrillus sphinx )
Sexual selection has become a major focus in evolutionary and behavioral ecology. It is also a popular research topic in primatology. I use studies of mandrills ( Mandrillus sphinx ), a classic example of extravagant armaments and ornaments in animals, to exemplify how a long‐term, multidisciplinary approach that integrates field observations with laboratory methods can contribute to on‐going theoretical debates in the field of sexual selection. …
Towards a Best Practice for the Use of Active Non-contact Surface Scanning to Record Human Skeletal Remains from Archaeological Contexts
Active surface scanners emit light or a laser stripe to record the exterior surface of an object or landscape, providing results in three dimensions. The use of active surface scanners to record anthropological and archaeological contexts has increased within the last few years, creating a number of sub-contexts within these disciplines and allowing a further development of certain applications, such as quantitative analysis, the use of replicas …
Introduction to the Special Section on Equity and Inclusion in Primatology
Interpreting People’s Behavior Toward Primates Using Qualitative Data: A Case Study from North Morocco
People’s perceptions of primates vary across and within cultures and may not be consistent with their behavior toward the primates themselves. We used qualitative data from semistructured and unstructured interviews with shepherds from 10 villages around Bouhachem oak forest in Morocco to describe and discuss shepherds’ behavior when they encounter Barbary macaques (Macaca sylvanus). When macaques enter agricultural fields to feed on crops, matur…
Odontochronologies in male and female mandrills ( Mandrillus sphinx ) and the development of dental sexual dimorphism
OBJECTIVES: We examine how dental sexual dimorphism develops in mandrills, an extremely sexually dimorphic primate. We aimed to (a) establish the chronology of dental development (odontochronology) in male and female mandrills, (b) understand interindividual and intersex variation in odontochronologies, and (c) determine how dental sexual dimorphism is achieved. MATERIALS AND METHODS: We prepared histological ground sections from the permanent te…
On Editing the International Journal of Primatology
Human Ability to Recognize Kin Visually Within Primates
The assessment of relatedness is a key determinant in the evolution of social behavior in primates. Humans are able to detect kin visually in their own species using facial phenotypes, and facial resemblance in turn influences both prosocial behaviors and mating decisions. This suggests that cognitive abilities that allow facial kin detection in conspecifics have been favored in the species by kin selection. We investigated the extent to which hu…
Hematology of a Semi-Free-Ranging Colony of Mandrills (Mandrillus sphinx)
Circannual changes in the secondary sexual adornments of semifree-ranging male and female mandrills (Mandrillus sphinx)
Male mandrills (Mandrillus sphinx) have spectacular secondary sexual adornments. These include red and blue sexual skin on the face, rump, and genitalia; a sternal scent-marking gland; and a "fatted" rump. Mandrills are seasonal breeders, and in other seasonally-breeding primate species members of both sexes may show increased expression of secondary sexual characteristics during the mating season. We examined changes in male secondary sexual ado…
Growth and ontogeny of sexual size dimorphism in the mandrill ( Mandrillus sphinx )
We present body mass (N = 419) and crown‐rump length (CRL, N = 210) measurements from 38 male and 49 female mandrills born into a semifree‐ranging colony in order to describe growth from birth to adulthood, and to investigate maternal influences upon growth. Adult male mandrills are 3.4 times the body mass, and 1.3 times the CRL, of adult females. Body mass dimorphism arises from a combination of sex differences in length of the growth period (fe…
Arrested development of secondary sexual adornments in subordinate adult male mandrills ( Mandrillus sphinx )
Previous studies of semifree‐ranging mandrills identified two morphological and social variants of the adult male, based on behavioral and secondary sexual characteristics. “Fatted” males are social, with highly developed sex skin coloration, large testes, high plasma testosterone levels, and fat rumps; while “nonfatted” males are peripheral or solitary, with paler sex skin, smaller testes, lower plasma testosterone, and slimmer rumps. We present…
Developmental variables and dominance rank in adolescent male mandrills ( Mandrillus sphinx )
Previous research on semifree‐ranging mandrills has shown that the degree of secondary sexual development differs among adult males. While some males are social, brightly colored, and have large testes and high levels of plasma testosterone, other males are peripheral or solitary, and lack fully developed secondary sexual features. In order to determine how these differences among males arise, and to investigate the influence of social factors, w…
Reproductive Parameters and Maternal Investment in Mandrills (Mandrillus sphinx)
Successful reproduction in wild-released orphan chimpanzees (Pan troglodytes troglodytes)
Social and seasonal influences on the reproductive cycle in female mandrills ( Mandrillus sphinx )
We present 12 years of perineal swelling data for a semifree‐ranging colony of mandrills ( Mandrillus sphinx ), and evaluate the influence of rank, parity, and seasonality on reproductive parameters. Female sexual swellings showed a seasonal pattern, with August the median month of ovulation. Overlapping periovulatory periods did not decrease the likelihood of conception. Females showed their first genital swelling at age 3.6 years (n = 28; range…
Do Female Mandrills Prefer Brightly Colored Males
Ontogenetic bases of canine dimorphism in anthropoid primates
This study tests hypotheses regarding the ontogeny of canine tooth size dimorphism in five anthropoid primate species (Saguinus fuscicollis, Macaca mulatta, Cercocebus atys, Papio hamadryas, and Mandrillus sphinx). Canine measurements and chronological age data are analyzed to determine if bimaturism, a sex difference in the age at which eruption ceases, accounts for canine tooth sexual dimorphism. Canine height measurements are evaluated through…
Violent coalitionary attack by female mandrills against an injured alpha male
Female contact aggression against males is relatively rare in species in which the adult males are larger than the females, but it has the potential to influence group structure, male group membership, tenure, and dominance rank. We report an incident in which female mandrills living in a semi‐free‐ranging group in Franceville, Gabon, attacked a male that was apparently incapacitated after a fight with another male and was unable to escape. The a…
Hematology of a Semi-Free-Ranging Colony of Mandrills (Mandrillus sphinx)
Life history in male mandrills (Mandrillus sphinx): Physical development, dominance rank, and group association
We assess life history from birth to death in male mandrills (Mandrillus sphinx) living in a semifree-ranging colony in Gabon, using data collected for 82 males that attained at least the age of puberty, including 33 that reached adulthood and 25 that died, yielding data for their entire lifespan. We describe patterns of mortality and injuries, dominance rank, group association, growth and stature, and secondary sexual character expression across…
Parasite Prevalence, Abundance, and Diversity in a Semi-free-ranging Colony of Mandrillus sphinx
Factors affecting fecal glucocorticoid levels in semi‐free‐ranging female mandrills ( Mandrillus sphinx )
Subordinate female cercopithecine primates often experience decreased reproductive success in comparison with high‐ranking females, with a later age at sexual maturity and first reproduction and/or longer interbirth intervals. One explanation that has traditionally been advanced to explain this is high levels of chronic social stress in subordinates, resulting from agonistic and aggressive interactions and leading to higher basal levels of glucoc…
Canine tooth size and fitness in male mandrills (Mandrillus sphinx)
Human Ability to Recognize Kin Visually Within Primates
The assessment of relatedness is a key determinant in the evolution of social behavior in primates. Humans are able to detect kin visually in their own species using facial phenotypes, and facial resemblance in turn influences both prosocial behaviors and mating decisions. This suggests that cognitive abilities that allow facial kin detection in conspecifics have been favored in the species by kin selection. We investigated the extent to which hu…
Is Brightest Best? Testing the Hamilton-Zuk Hypothesis in Mandrills
Maternal Effects and the Endocrine Regulation of Mandrill Growth
Maternal effects can influence offspring growth and development, and thus fitness. However, the physiological factors mediating these effects in nonhuman primates are not well understood. We investigated the impact of maternal effects on variation in three important components of the endocrine regulation of growth in male and female mandrills ( M andrillus sphinx ), from birth to 9 years of age. Using a mixed longitudinal set ( N = 252) of plasma…
On Editing the International Journal of Primatology
Just how flexible is behavior
Testing for post‐copulatory selection for major histocompatibility complex genotype in a semi‐free‐ranging primate population
A large body of evidence suggests that major histocompatibility complex (MHC) genotype influences mate choice. However, few studies have investigated MHC-mediated post-copulatory mate choice under natural, or even semi-natural, conditions. We set out to explore this question in a large semi-free-ranging population of mandrills (Mandrillus sphinx) using MHC-DRB genotypes for 127 parent-offspring triads. First, we showed that offspring MHC heterozy…
Darting Primates in the Field: A Review of Reporting Trends and a Survey of Practices and Their Effect on the Primates Involved
Sexual Selection and the differences between the sexes in M andrills ( M andrillus sphinx )
Sexual selection has become a major focus in evolutionary and behavioral ecology. It is also a popular research topic in primatology. I use studies of mandrills ( Mandrillus sphinx ), a classic example of extravagant armaments and ornaments in animals, to exemplify how a long‐term, multidisciplinary approach that integrates field observations with laboratory methods can contribute to on‐going theoretical debates in the field of sexual selection. …
Biosocial Conservation: Integrating Biological and Ethnographic Methods to Study Human–Primate Interactions
Biodiversity conservation is one of the grand challenges facing society. Many people interested in biodiversity conservation have a background in wildlife biology. However, the diverse social, cultural, political, and historical factors that influence the lives of people and wildlife can be investigated fully only by incorporating social science methods, ideally within an interdisciplinary framework. Cultural hierarchies of knowledge and the hege…
Towards a Best Practice for the Use of Active Non-contact Surface Scanning to Record Human Skeletal Remains from Archaeological Contexts
Active surface scanners emit light or a laser stripe to record the exterior surface of an object or landscape, providing results in three dimensions. The use of active surface scanners to record anthropological and archaeological contexts has increased within the last few years, creating a number of sub-contexts within these disciplines and allowing a further development of certain applications, such as quantitative analysis, the use of replicas …
Biology (35 works) · Primate Behavior and Ecology (33 works) · Zoology (19 works) · Ecology (18 works) · Animal Behavior and Reproduction (17 works) · Animal ecology (15 works) · Sociology (15 works) · Wildlife Ecology and Conservation (15 works) · Demography (12 works) · Anthropology (10 works)