Jeffrey A French
Biographic Data
| ID | 3528755 |
|---|---|
| NAME | Jeffrey A French |
| GIVEN NAMES | Jeffrey A |
| FAMILY NAME | French |
| SIGNATURE | FRENCH J A |
| AFFILIATIONS | University of Nebraska at Omaha |
| ORCID | 0000-0001-5304-1592 |
| VERIFIED | Yes |
| TOTAL WORKS | 36 |
| TOTAL CITATIONS | 36 |
| AUTHOR COUNT | 36 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1981 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 4 |
Biological and behavioral predictors of relative energy intake after acute exercise
Oxytocin regulates reunion affiliation with a pairmate following social separation in marmosets
While separation from significant social partners produces a host of neurobiological and behavioral perturbations, including behavioral distress and increased glucocorticoid production, positive social interactions upon reunion are critical for the reestablishment of normative relationship dynamics and the attenuation of the biobehavioral stress response. The hormone oxytocin has critical and pervasive roles in reproductive and behavioral process…
Social Monogamy in Nonhuman Primates
Monogamy as a social system has been both a scientific puzzle and a sociocultural issue for decades. In this review, we examine social monogamy from a comparative perspective with a focus on primates, our closest genetic relatives. We break down monogamy into component elements, including pair-bonding and partner preference, mate guarding or jealousy, social attachment, and biparental care. Our survey of primates shows that not all features are p…
Prenatal androgen exposure and parental care interact to influence timing of reproductive maturation in marmosets
The timing of reproductive maturation is susceptible to hormonal and environmental influences, and variation in this timing can be partially attributed to the prenatal and post-natal environment. We examined associations between prenatal steroid exposure and the post-natal family environment on the variability in reproductive maturation timing in young marmosets (Callithrix geoffroyi). Urine samples from pregnant females were analyzed for cortiso…
Behavioral responses to social separation stressor change across development and are dynamically related to HPA activity in marmosets
Psychosocial stressors activate two distinct stress-response systems, a central, behavioral response, and a peripheral, endocrine response. Both behavioral and endocrine responses to stressors are subject to individual and developmental variables, but it is not known whether stressor induced behaviors are stable across development, and how they correspond with changes in the endocrine component of the stress response. We characterized the develop…
Hybridization effects and genetic diversity of the common and black‐tufted marmoset ( C allithrix jacchus and C allithrix penicillata ) mitochondrial control region
Hybridization is continually documented in primates, but effects of natural and anthropogenic hybridization on biodiversity are still unclear and differentiating between these contexts remains challenging in regards to primate evolution and conservation. Here, we examine hybridization effects on the mitochondrial DNA (mtDNA) control region of Callithrix marmosets, which provide a unique glimpse into interspecific mating under distinct anthropogen…
Describing Ovarian Cycles, Pregnancy Characteristics, and the Use of Contraception in Female White‐Faced Marmosets, Callithrix geoffroyi
Endocrine data and characteristics of nonconceptive ovarian cycling and pregnancy are limited within the genus Callithrix to the common marmoset ( C. jacchus ) and Wied's black tufted‐ear marmoset ( C. kuhlii ). This article presents patterns of urinary pregnanediol‐3‐glucuronide (PdG) excretion, as determined by enzyme immunoassay, throughout the course of ovarian cycling and pregnancy in white‐faced marmosets ( C. geoffroyi ). Furthermore, char…
Social and developmental influences on urinary androgen levels in young male white‐faced marmosets ( Callithrix geoffroyi )
Callitrichine primates (marmosets and tamarins) often remain in their natal groups beyond the time of sexual maturity. Although studies have characterized the development of female reproductive function in callitrichine offspring, less is known about the male reproductive development. To document reproductive development in male marmosets, we monitored urinary androgen (uA) excretion in males housed in a captive colony of white‐faced marmosets ( …
Female marmosets' behavioral and hormonal responses to unfamiliar intruders
The endocrine control mechanisms for female mammalian aggression have been largely unstudied. Although it has been proposed that androgens may modulate female aggressive behavior in a similar manner to males, very little conclusive evidence exists. Previous work in male marmosets found that post‐encounter increases in testosterone (T) were dependent on the intensity of aggression displayed during the aggressive encounter. We exposed female marmos…
Production and perception of sex differences in vocalizations of Wied's black‐tufted‐ear marmosets ( Callithrix kuhlii )
Males and females from many species produce distinct acoustic variations of functionally identical call types. Social behavior may be primed by sex‐specific variation in acoustic features of calls. We present a series of acoustic analyses and playback experiments as methods for investigating this subject. Acoustic parameters of phee calls produced by Wied's black‐tufted‐ear marmosets ( Callithrix kuhlii ) were analyzed for sex differences. Discri…
Demographic review of a captive colony of callitrichids ( Callithrix kuhlii )
Although reports on colony demographics for a variety of callitrichid species are available in the literature, to date there has not been a detailed examination of Wied's black tufted‐ear marmoset ( Callithrix kuhlii ). The purpose of this study is to present colony demographics for C. kuhlii from the University of Nebraska at Omaha's Callitrichid Research Center from 1991 to 2002. C. kuhlii are currently held in a number of zoological parks in t…
Treatment with CRH‐1 antagonist antalarmin reduces behavioral and endocrine responses to social stressors in marmosets ( Callithrix kuhlii )
Corticotropin‐releasing hormone (CRH) has multiple roles in coordinating the behavioral and endocrine responses to a host of environmental challenges, including social stressors. In the present study we evaluated the role of CRH in mediating responses to a moderate social stressor in Wied's black tufted‐eared marmosets ( Callithrix kuhlii ). Male and female marmosets (n=14) were administered antalarmin (a selective CRH‐1 receptor antagonist; 50μg…
Serotonin function is associated with behavioral response to a novel conspecific in marmosets
The function of the central nervous system neurotransmitter serotonin (5-HT) contributes to individual differences in impulsive behavior in humans and nonhuman primates. We investigated the relationship between 5-HT function and behavioral responses to a novel social scenario in marmosets. In the first study, marmosets (n=10) were treated orally with fluoxetine HCl (FLX) or vehicle for two trial periods and exposed to a novel conspecific for a 20…
Social and reproductive factors affecting cortisol levels in wild female golden lion tamarins ( Leontopithecus rosalia )
The steroid hormone cortisol has been associated with different levels of “stress” as well as different reproductive conditions in many primates. In callitrichids, cortisol has more often been reflective of female reproductive status than of chronic stress. In this study, we addressed the hypothesis that wild golden lion tamarin ( Leontopithecus rosalia ) females, whose social structure is characterized by low aggression and high social support, …
Opportunistic mothers
Influence of the mother's reproductive state on the hormonal status of daughters in marmosets ( Callithrix kuhlii )
Behavioral and endocrine suppression of reproduction in subordinate females produces the high reproductive skew that characterizes callitrichid primate mating systems. Snowdon et al. [American Journal of Primatology 31:11–21, 1993] reported that the eldest daughters in tamarin families exhibit further endocrinological suppression immediately following the birth of siblings, and suggested that dominant females exert greater control over subordinat…
Behavioral and Endocrine Responses in Male Marmosets to the Establishment of Multimale Breeding Groups
Endocrine Monitoring of Wild Dominant and Subordinate Female Leontopithecus rosalia
Nighttime Wakefulness Associated with Infant Rearing in Callithrix kuhlii
Variation in circulating and excreted estradiol associated with testicular activity in male marmosets
Concentrations of estradiol (E 2 ) are high in the urine of male marmosets, and links between E 2 and paternal behavior have been proposed in black tufted‐ear marmosets, Callithrix kuhlii . However, it is not clear whether urinary E 2 in male marmosets: 1) represents production of E 2 associated with testicular activity, 2) is associated with adrenal steroid production, or 3) merely reflects peripheral conversion of T to E 2 prior to excretion. W…
Hormonal Mechanisms Underlying Aberrant Sexual Differentiation in Male Rats Prenatally Exposed to Alcohol, Stress, or Both
Social and reproductive conditions modulate urinary cortisol excretion in black tufted-ear marmosets (Callithrix kuhli)
The links between psychosocial stress, social status, reproductive function, and urinary cortisol were assessed in social groups of black tufted-ear marmosets (Callithrix kuhli). Urinary cortisol excretion was monitored in cases of intrafamily conflict ("sibling fights") and in daughters in four distinct social contexts: in the family group, while housed singly or in same-sex pairs, and while paired with a male pairmate. Cortisol excretion was el…
Infant Carrying Behavior in Callitrichid Primates
Urinary steroid and gonadotropin excretion across the reproductive cycle in female Wied's black tufted‐ear marmosets (Callithrix kuhli)
Details of the endocrinology of reproduction in the genus Callithrix are known only for the common marmoset, C. jacchus. This paper presents the patterns of urinary pregnandiol-3-glucuronide (PdG), urinary estrone conjugates (E1C), and gonadotropin excretion throughout the reproductive cycle of Wied's black tufted-ear marmoset (C. kuhli) as determined via steroid conjugate enzyme immunoassays (EIA) and gonadotropin radioimmunoassays (RIA). Postpa…
Reproduction in captive lion tamarins (Leontopithecus)
Diversity in reproductive and social systems characterizes the primate family Callitrichidae. This paper contributes to our appreciation of this diversity by presenting the first detailed comparative analysis of captive breeding in three species of lion tamarins (Leontopithecus chrysomelas, L. chrysopygus, and L. rosalia) housed at the Centro de Primatologia do Rio de Janeiro. The annual pattern of reproduction in all three species of Leontopithe…
Opportunistic mothers
Infant Carrying Behavior in Callitrichid Primates
Behavioral and Endocrine Responses in Male Marmosets to the Establishment of Multimale Breeding Groups
Social Monogamy in Nonhuman Primates
Monogamy as a social system has been both a scientific puzzle and a sociocultural issue for decades. In this review, we examine social monogamy from a comparative perspective with a focus on primates, our closest genetic relatives. We break down monogamy into component elements, including pair-bonding and partner preference, mate guarding or jealousy, social attachment, and biparental care. Our survey of primates shows that not all features are p…
Hybridization effects and genetic diversity of the common and black‐tufted marmoset ( C allithrix jacchus and C allithrix penicillata ) mitochondrial control region
Hybridization is continually documented in primates, but effects of natural and anthropogenic hybridization on biodiversity are still unclear and differentiating between these contexts remains challenging in regards to primate evolution and conservation. Here, we examine hybridization effects on the mitochondrial DNA (mtDNA) control region of Callithrix marmosets, which provide a unique glimpse into interspecific mating under distinct anthropogen…
Individual differences in play inMacaca fuscata
Endocrine Monitoring of Wild Dominant and Subordinate Female Leontopithecus rosalia
Nighttime Wakefulness Associated with Infant Rearing in Callithrix kuhlii
Hormonal Mechanisms Underlying Aberrant Sexual Differentiation in Male Rats Prenatally Exposed to Alcohol, Stress, or Both
Individual differences in play inMacaca fuscata
Reproduction and behavior in marmosets and tamarins
The effect of social environment on estrogen excretion, scent marking, and sociosexual behavior in tamarins ( Saguinus oedipus )
The influence of various social environments on estrogen excretion, scent marking, and the expression of sociosexual behavior was examined in cotton‐top tamarins ( Sanguinus o. oedipus ). Behavioral observations and urine collections were conducted on five females while first housed in their natal family group or in the presence of another cycling adult female and then while housed with an unrelated adult male in a separate cage. Behavioral obser…
Synchronization of ovarian cycles within and between social groups in golden lion tamarins ( Leontopithecus rosalia )
Synchronization of ovarian events has been reported in a number of primate species, with the temporal resolution of synchrony ranging from the occurrence of seasonal breeding within the annual cycle to a close matching of ovarian events within a single ovarian cycle. However, ovarian synchrony has not been reported in a New World primate. The temporal association of ovarian events was examined in female golden lion tamarins ( Leontopithecus rosal…
The reproductive status of nonbreeding group members in captive golden lion tamarin social groups
Reproductive activity is limited to only one female in many species of callitrichid primates (marmosets and tamarins): daughters and subordinate females do not produce offspring. A suppression of ovulatory cyclicity is responsible for the lack of reproductive activity in three species of callitrichids studied to date. This study evaluated the endocrine status of golden lion tamarins ( Leontopithecus rosalia ) housed as daughters or sons in family…
Sex differences in vocal structure in a callitrichid primate, Leontopithecus rosalia
Four types of calls (long calls, chirps, chucks, and trills) from Golden Lion Tamarins ( Leontopithecus rosalia ) were analyzed for sex differences in structure. Six or more acoustic variables were analyzed for each call type. One or more variables from each call category differed significantly between the sexes. In addition, discriminant function analyses were conducted on male vs. female data for each call type. Long calls, chirps, and chucks f…
Urinary and plasma gonadotropin concentrations in golden lion tamarins ( Leontopithecus r. rosalia )
This paper describes the development and validation of a plasma and urinary gonadotropin immunoassay for golden lion tamarins ( Leontopithecus rosalia ), an endangered New World callitrichid primate. The assay is derived from a macaque chorionic gonadotropin assay and was validated for both plasma and urine samples in L. rosalia . Levels of immunoreactive LH/CG in lion tamarin urine were highly correlated ( r = + 0.98) with gonadotropin bioactivi…
A demographic analysis of the membership of the American Society of Primatologists
Development of heterosexual relationships in wied's black tufted‐ear marmosets ( Callithrix kuhli )
In tamarins and marmosets, long‐term stable sociosexual relationships are formed between heterosexual adults, but these “monogamous” relationships are often formed in groups that contain multiple adults of both sexes. The patterning of interactions during pair formation may therefore be shaped by this demographic profile. We evaluated the development of sociosexual relationships in six captive pairs of Wied's black tufted‐ear marmosets ( Callithr…
Urinary steroid and gonadotropin excretion across the reproductive cycle in female Wied's black tufted‐ear marmosets (Callithrix kuhli)
Details of the endocrinology of reproduction in the genus Callithrix are known only for the common marmoset, C. jacchus. This paper presents the patterns of urinary pregnandiol-3-glucuronide (PdG), urinary estrone conjugates (E1C), and gonadotropin excretion throughout the reproductive cycle of Wied's black tufted-ear marmoset (C. kuhli) as determined via steroid conjugate enzyme immunoassays (EIA) and gonadotropin radioimmunoassays (RIA). Postpa…
Reproduction in captive lion tamarins (Leontopithecus)
Diversity in reproductive and social systems characterizes the primate family Callitrichidae. This paper contributes to our appreciation of this diversity by presenting the first detailed comparative analysis of captive breeding in three species of lion tamarins (Leontopithecus chrysomelas, L. chrysopygus, and L. rosalia) housed at the Centro de Primatologia do Rio de Janeiro. The annual pattern of reproduction in all three species of Leontopithe…
Urinary steroid and gonadotropin excretion across the reproductive cycle in female Wied's black tufted-ear marmosets (Callithrix kuhli)
Details of the endocrinology of reproduction in the genus Callithrix are known only for the common marmoset, C. jacchus. This paper presents the patterns of urinary pregnandiol-3-glucuronide (PdG), urinary estrone conjugates (E1C), and gonadotropin excretion throughout the reproductive cycle of Wied's black tufted-ear marmoset (C. kuhli) as determined via steroid conjugate enzyme immunoassays (EIA) and gonadotropin radioimmunoassays (RIA). Postpa…
Forthcoming inAmerican Journal of Primatology
Social and reproductive conditions modulate urinary cortisol excretion in black tufted-ear marmosets (Callithrix kuhli)
The links between psychosocial stress, social status, reproductive function, and urinary cortisol were assessed in social groups of black tufted-ear marmosets (Callithrix kuhli). Urinary cortisol excretion was monitored in cases of intrafamily conflict ("sibling fights") and in daughters in four distinct social contexts: in the family group, while housed singly or in same-sex pairs, and while paired with a male pairmate. Cortisol excretion was el…
Infant Carrying Behavior in Callitrichid Primates
Variation in circulating and excreted estradiol associated with testicular activity in male marmosets
Concentrations of estradiol (E 2 ) are high in the urine of male marmosets, and links between E 2 and paternal behavior have been proposed in black tufted‐ear marmosets, Callithrix kuhlii . However, it is not clear whether urinary E 2 in male marmosets: 1) represents production of E 2 associated with testicular activity, 2) is associated with adrenal steroid production, or 3) merely reflects peripheral conversion of T to E 2 prior to excretion. W…
Hormonal Mechanisms Underlying Aberrant Sexual Differentiation in Male Rats Prenatally Exposed to Alcohol, Stress, or Both
Endocrine Monitoring of Wild Dominant and Subordinate Female Leontopithecus rosalia
Nighttime Wakefulness Associated with Infant Rearing in Callithrix kuhlii
Influence of the mother's reproductive state on the hormonal status of daughters in marmosets ( Callithrix kuhlii )
Behavioral and endocrine suppression of reproduction in subordinate females produces the high reproductive skew that characterizes callitrichid primate mating systems. Snowdon et al. [American Journal of Primatology 31:11–21, 1993] reported that the eldest daughters in tamarin families exhibit further endocrinological suppression immediately following the birth of siblings, and suggested that dominant females exert greater control over subordinat…
Behavioral and Endocrine Responses in Male Marmosets to the Establishment of Multimale Breeding Groups
Social and reproductive factors affecting cortisol levels in wild female golden lion tamarins ( Leontopithecus rosalia )
The steroid hormone cortisol has been associated with different levels of “stress” as well as different reproductive conditions in many primates. In callitrichids, cortisol has more often been reflective of female reproductive status than of chronic stress. In this study, we addressed the hypothesis that wild golden lion tamarin ( Leontopithecus rosalia ) females, whose social structure is characterized by low aggression and high social support, …
Opportunistic mothers
Serotonin function is associated with behavioral response to a novel conspecific in marmosets
The function of the central nervous system neurotransmitter serotonin (5-HT) contributes to individual differences in impulsive behavior in humans and nonhuman primates. We investigated the relationship between 5-HT function and behavioral responses to a novel social scenario in marmosets. In the first study, marmosets (n=10) were treated orally with fluoxetine HCl (FLX) or vehicle for two trial periods and exposed to a novel conspecific for a 20…
Demographic review of a captive colony of callitrichids ( Callithrix kuhlii )
Although reports on colony demographics for a variety of callitrichid species are available in the literature, to date there has not been a detailed examination of Wied's black tufted‐ear marmoset ( Callithrix kuhlii ). The purpose of this study is to present colony demographics for C. kuhlii from the University of Nebraska at Omaha's Callitrichid Research Center from 1991 to 2002. C. kuhlii are currently held in a number of zoological parks in t…
Biology (31 works) · Primate Behavior and Ecology (27 works) · Animal Behavior and Reproduction (22 works) · Medicine (20 works) · Callithrix (19 works) · Endocrinology (17 works) · Psychology (17 works) · Zoology (17 works) · Callitrichidae (15 works) · Ecology (14 works)