Mating Systems and Female–Female Competition in the Common Marmoset, Callithrix jacchus

Yamamoto, Maria Emília; Arruda, Maria de Fátima; Alencar, Anuska Irene de; Sousa, Maria Bernardete Cordeiro de; Araújo, Arrilton

doi:10.1007/978-1-4419-0293-1_6

Cited by 44 publications

(46 citation statements)

References 38 publications

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“…In captivity, females may conceive as early as one year of age, when they are sexually mature, and recommendations of initiating breeding at 18 months of age are common [9]. In the wild, however, there are many constraints on breeding, and marmoset females, although able to conceive, may not find a suitable partner, find a breeding vacancy or overcome competition with other breeding females [36,[38][39]. Accordingly, we found that first parturition occurred at a much later age in wild females.…”

Section: Evidence Of Age Effects On Reproduction In the Wildmentioning

confidence: 99%

Reproduction and Aging in Marmosets and Tamarins

Tardif

Araújo

Arruda

et al. 2008

Interdisciplinary Topics in Gerontology

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This chapter presents data on the relations between reproduction and aging in both captive and free-ranging marmosets and tamarins. The relationship is examined from two perspectives. First, the relation of age to physiological impairments in reproductive function is explored. Callitrichid females, in common with many other nonhuman primates, begin to display anovulation associated with follicular depletion at a point relatively close to the maximum life span. Unlike Old World primates, however, they continued to display significant steroidogenic activity in the ovary. There are age effects on some reproductive output variables, such as litter size and inter-birth interval, though the effects are often small. Like other mammals, male marmosets display a change in levels of androgens with age, although the magnitude of the decrease is not large and they actually mount an elevated response to GnRH challenge as they age. We also examined whether age affects either the establishment or maintenance of a breeding position, the factors most important in determining lifetime reproductive success. Infant mortality did increase with increasing parturitions, suggesting that there may have been aging or parturition effects on lactation. Generally, marmoset females were well past the age of sexual maturity at the beginning of the tenure and approaching 8-9 years at the end of it. Reproductive decline did not appear to be a gradual process, but a rather abrupt one, often causing the dismantling of the group. There are potentially interesting relations among maternal age, mass and declining reproductive performance, given the known importance of mass as a determinant of reproductive success in female callitrichids.

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Section: Evidence Of Age Effects On Reproduction In the Wildmentioning

confidence: 99%

Reproduction and Aging in Marmosets and Tamarins

Tardif

Araújo

Arruda

et al. 2008

Interdisciplinary Topics in Gerontology

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“…Furthermore, infant-carrying rates may also be influenced and biased by other social constraints, e.g. female breeders could be protective and restrict the access to infants (mostly towards female helpers), arguably to minimize the risk of infanticide (Albuquerque, 1999;Digby, 1995;Yamamoto et al, 2010;Yamamoto et al, 2009). Finally, older and more mobile infants play an increasingly active role in choosing their carriers.…”

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confidence: 99%

Oxytocin is associated with infant-care behavior and motivation in cooperatively breeding marmoset monkeys

Finkenwirth

Martins

Deschner

et al. 2016

Hormones and Behavior

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The neurohormone oxytocin (OT) is positively involved in the regulation of parenting and social bonding in mammals, and may thus also be important for the mediation of alloparental care. In cooperatively breeding marmosets, infants are raised in teamwork by parents and adult and subadult non-reproductive helpers (usually older siblings). Despite high intrinsic motivation, which may be mediated by hormonal priming, not all individuals are always equally able to contribute to infant-care due to competition among care-takers. Among the various care-taking behaviors, proactive food sharing may reflect motivational levels best, since it can be performed ad libitum by several individuals even if competition among surplus care-takers constrains access to infants. Our aim was to study the link between urinary OT levels and care-taking behaviors in group-living marmosets, while taking affiliation with other adults and infant age into account. Over eight reproductive cycles, 26 individuals were monitored for urinary baseline OT, care-taking behaviors (baby-licking, -grooming, -carrying, and proactive food sharing), and adult-directed affiliation. Mean OT levels were generally highest in female breeders and OT increased significantly in all individuals after birth. During early infancy, high urinary OT levels were associated with increased infant-licking but low levels of adult-affiliation, and during late infancy, with increased proactive food sharing. Our results show that, in marmoset parents and alloparents, OT is positively involved in the regulation of care-taking, thereby reflecting the changing needs during infant development. This particularly included behaviors that are more likely to reflect intrinsic care motivation, suggesting a positive link between OT and motivational regulation of infant-care. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Email: christa.finkenwirth@uzh.ch A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT AbstractThe neurohormone oxytocin (OT) is positively involved in the regulation of parenting and social bonding in mammals, and may thus also be important for the mediation of alloparental care. In cooperatively breeding marmosets, infants are raised in teamwork by parents and adult and subadult non-reproductive helpers (usually older siblings). Despite high intrinsic motivation, which may be mediated by hormonal priming, not all individuals are always equally able to contribute to infant-care due to competition among care-takers. Among the various care-taking behaviors, proactive food sharing may reflect motivational levels best, since it can be performed ad libi...

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“…Common to both wild and captivity, adult breeding pairs and their offspring form the family. While departure from the family group does occur in the wild, family groups are most common [Yamamoto et al 2009]. These species have a high reproductive rate consisting of twin and triplet births as well as postpartum ovulations occurring within 10 to 20 days following birth [Lunn and McNeilly 1982; Ziegler et al 1987a].…”

Section: Introductionmentioning

confidence: 99%

Social Effects via Olfactory Sensory Stimuli on Reproductive Function and Dysfunction in Cooperative Breeding Marmosets and Tamarins

Ziegler

2012

American J Primatol

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Most primates are social species whose reproduction is influenced by their social relationships. The cotton-top tamarin, Saguinus oedipus, and the common marmoset, Callithrix jacchus, are cooperative breeding species where the family structure alters reproductive function in many ways. While primates receive social effects on reproduction via all sensory stimuli, the marmosets and tamarins are particularly influenced by olfactory/chemosensory stimuli. The olfactory sensory processing is the ‘social glue’ that keeps the family together. This review describes a number of studies using the marmosets and tamarins at the University of Wisconsin to demonstrate how odor cues are used for altering reproductive function and dysfunction. Several key studies will be discussed to show the role of odor signaling of the female reproductive state. The suppressive effects of odors are mediated by priming odors and can cause a suppressive influence on ovulation in young females via their mother’s scents. Additionally, odor cues from the infant function as priming odors to ensure that fathers and mothers are present and receptive to their parental care duties. Neural pathways occur via the processing of priming odors that consequently stimulate alterations in the behavioral and endocrine response to the stimuli. The dynamics of the cooperative breeding system ensure that offspring have essential needs met and that they develop in a family environment. Olfactory communication plays a key role in maintenance of the social system of Callitrichid monkeys.

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Mating Systems and Female–Female Competition in the Common Marmoset, Callithrix jacchus

Cited by 44 publications

References 38 publications

Reproduction and Aging in Marmosets and Tamarins

Reproduction and Aging in Marmosets and Tamarins

Oxytocin is associated with infant-care behavior and motivation in cooperatively breeding marmoset monkeys

Social Effects via Olfactory Sensory Stimuli on Reproductive Function and Dysfunction in Cooperative Breeding Marmosets and Tamarins

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