E Jean Wickings
Biographic Data
| ID | 3528785 |
|---|---|
| NAME | E Jean Wickings |
| GIVEN NAMES | E Jean |
| FAMILY NAME | Wickings |
| SIGNATURE | WICKINGS E J |
| AFFILIATIONS | Centre International de Recherches Médicales de Franceville |
| VERIFIED | No |
| TOTAL WORKS | 23 |
| TOTAL CITATIONS | 133 |
| AUTHOR COUNT | 23 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1981 |
| LATEST PUBLICATION YEAR | 2015 |
| H-INDEX | 7 |
Application of DNA Fingerprinting to Familial Studies of Gabonese Primates
Is Brightest Best? Testing the Hamilton-Zuk Hypothesis in Mandrills
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)
Parasite Prevalence, Abundance, and Diversity in a Semi-free-ranging Colony of Mandrillus sphinx
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…
Consequences of a One-male Harem Reproductive System and Inbreeding in a Captive Group of Cercopithecus solatus
Changes in social interactions during adolescence in male mandrills ( Mandrillus sphinx )
The adolescent period in male mandrills extends from the time the testicles descend (at the age of 3–4 years) to the time adult characteristics develop (at the age of 10 years), and is thus one of the longest adolescent periods in cercopithecines. In this short cross‐sectional study of 11 male mandrills (4.7–9.1 years old), we analyzed social behavioral patterns to investigate partner preference and changes in types of interactions throughout pub…
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…
A preliminary study on the social relationships in a semi-free ranging colony of sun-tailed monkeys (Cercopithecus solatus), a species recently discovered in gabon
Reproductive Parameters and Maternal Investment in Mandrills (Mandrillus sphinx)
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…
Ten days in the life of a mandrill horde in the Lopé Reserve, Gabon
Mandrills have long been known to form large aggregations in the wild, but it has proved difficult to obtain detailed information on the socioecology of these groups. An unusually large (>600) horde of mandrills was followed for ten days during the 1995 dry season in Central Gabon, and data were collected on group composition and ecology while the mandrills were in an area of forest-savanna mosaic habitat in the north of the Lopé Reserve. Three s…
Ten days in the life of a mandrill horde in the Lopé Reserve, Gabon
Mandrills have long been known to form large aggregations in the wild, but it has proved difficult to obtain detailed information on the socioecology of these groups. An unusually large (>600) horde of mandrills was followed for ten days during the 1995 dry season in Central Gabon, and data were collected on group composition and ecology while the mandrills were in an area of forest-savanna mosaic habitat in the north of the Lopé Reserve. Three s…
Symposium on genetic markers (DNA-typing, proteins) in sociobiology and population genetics: Introductory remarks
Molecular ecology — The present and the future: Discussion on Part 1
Symposium on genetic markers (DNA-typing, proteins) in sociobiology and population genetics: Introductory remarks
Male dominance and genetically determined reproductive success in the mandrill (Mandrillus sphinx)
Hypervariable single and multi-locus DNA polymorphisms for genetic typing of non-human primates
Characterization and comparison of testicular LH/hCG receptors of rhesus monkeys ( Macaca mulatta ) and green monkeys ( Cercopithecus aethiops )
Testicular luteinizing hormone (LH/hCG) receptors were characterized in seven green monkeys and compared with those of four rhesus monkeys. Testicular tissue showed high binding affinity for 125 I‐hCG, (0.9–2.5 × 10 9 M −1 , and 0.7–1.64 × 10 9 M −1 respectively, for green and rhesus monkeys) and low binding capacity (0.343–0.682 fmol/mg and 0.198–0.355 fmol/mg testicular homogenate, respectively). There was no difference in binding affinity betw…
Seminal parameters in rhesus monkeys under physiological conditions and in studies for male fertility control using FSH antibodies or LH‐RH‐agonists
To characterize the male rhesus monkey as a nonhuman primate model for human testicular functions, parameters of exocrine and endocrine testicular function were monitored in 16 adult male‐rhesus monkeys for 1 and 5 years respectively. Testicular volumes in‐season (October–January) were twice as great as in out‐of‐season animals (March–June). Ejaculations, both spontaneous and electrostimulated, ceased out‐of‐season. In 37 ejaculates obtained by e…
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)
Canine tooth size and fitness in male 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…
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
Is Brightest Best? Testing the Hamilton-Zuk Hypothesis in Mandrills
Hematology of a Semi-Free-Ranging Colony of Mandrills (Mandrillus sphinx)
Consequences of a One-male Harem Reproductive System and Inbreeding in a Captive Group of Cercopithecus solatus
Seminal parameters in rhesus monkeys under physiological conditions and in studies for male fertility control using FSH antibodies or LH‐RH‐agonists
To characterize the male rhesus monkey as a nonhuman primate model for human testicular functions, parameters of exocrine and endocrine testicular function were monitored in 16 adult male‐rhesus monkeys for 1 and 5 years respectively. Testicular volumes in‐season (October–January) were twice as great as in out‐of‐season animals (March–June). Ejaculations, both spontaneous and electrostimulated, ceased out‐of‐season. In 37 ejaculates obtained by e…
Characterization and comparison of testicular LH/hCG receptors of rhesus monkeys ( Macaca mulatta ) and green monkeys ( Cercopithecus aethiops )
Testicular luteinizing hormone (LH/hCG) receptors were characterized in seven green monkeys and compared with those of four rhesus monkeys. Testicular tissue showed high binding affinity for 125 I‐hCG, (0.9–2.5 × 10 9 M −1 , and 0.7–1.64 × 10 9 M −1 respectively, for green and rhesus monkeys) and low binding capacity (0.343–0.682 fmol/mg and 0.198–0.355 fmol/mg testicular homogenate, respectively). There was no difference in binding affinity betw…
Symposium on genetic markers (DNA-typing, proteins) in sociobiology and population genetics: Introductory remarks
Molecular ecology — The present and the future: Discussion on Part 1
Symposium on genetic markers (DNA-typing, proteins) in sociobiology and population genetics: Introductory remarks
Male dominance and genetically determined reproductive success in the mandrill (Mandrillus sphinx)
Hypervariable single and multi-locus DNA polymorphisms for genetic typing of non-human primates
Ten days in the life of a mandrill horde in the Lopé Reserve, Gabon
Mandrills have long been known to form large aggregations in the wild, but it has proved difficult to obtain detailed information on the socioecology of these groups. An unusually large (>600) horde of mandrills was followed for ten days during the 1995 dry season in Central Gabon, and data were collected on group composition and ecology while the mandrills were in an area of forest-savanna mosaic habitat in the north of the Lopé Reserve. Three s…
Ten days in the life of a mandrill horde in the Lopé Reserve, Gabon
Mandrills have long been known to form large aggregations in the wild, but it has proved difficult to obtain detailed information on the socioecology of these groups. An unusually large (>600) horde of mandrills was followed for ten days during the 1995 dry season in Central Gabon, and data were collected on group composition and ecology while the mandrills were in an area of forest-savanna mosaic habitat in the north of the Lopé Reserve. Three s…
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…
A preliminary study on the social relationships in a semi-free ranging colony of sun-tailed monkeys (Cercopithecus solatus), a species recently discovered in gabon
Reproductive Parameters and Maternal Investment in Mandrills (Mandrillus sphinx)
Changes in social interactions during adolescence in male mandrills ( Mandrillus sphinx )
The adolescent period in male mandrills extends from the time the testicles descend (at the age of 3–4 years) to the time adult characteristics develop (at the age of 10 years), and is thus one of the longest adolescent periods in cercopithecines. In this short cross‐sectional study of 11 male mandrills (4.7–9.1 years old), we analyzed social behavioral patterns to investigate partner preference and changes in types of interactions throughout pub…
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…
Consequences of a One-male Harem Reproductive System and Inbreeding in a Captive Group of Cercopithecus solatus
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)
Is Brightest Best? Testing the Hamilton-Zuk Hypothesis in Mandrills
Application of DNA Fingerprinting to Familial Studies of Gabonese Primates
Biology (22 works) · Primate Behavior and Ecology (15 works) · Animal Behavior and Reproduction (13 works) · Demography (13 works) · Population (10 works) · Zoology (10 works) · Animal ecology (8 works) · Genetics (8 works) · Endocrinology (7 works) · Wildlife Ecology and Conservation (7 works)