Birth seasonality in cotton-top tamarins (saguinus oedipus) despite constant food supply and body weight

McGrew, William C.; Webster, Joanne P.

doi:10.1007/bf02381349

Cited by 8 publications

(7 citation statements)

References 11 publications

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“…One fact that supports this hypotheses is that the captive callitrichid populations which failed to show birth seasonality were those which were partially or totally prevented from being aware of seasonal variations in photoperiod and rainfall (MCGREW & WEBSTER, 1995). Indeed, chronobiological studies carried out in our laboratory demonstrated that although our colony is located near the equator, with an annual variation in day length of only 20-30 min, the rest/activity cycle of the groups showed a circannual variation.…”

Section: Discussionsupporting

confidence: 57%

“…In captivity, the occurrence of birth seasonality seems to depend on the characteristics of colony facilities. In colonies in which the animals are maintained in indoor enclosures no seasonality was detected (Box & HUBRECHT, 1987;POOLE & EVANS, 1982), whereas in colonies which use outdoor cages, the births were seasonally restricted (ZIEGLER & STEIN, 1981;MCGREW & WEBSTER, 1995).…”

Section: Introductionmentioning

confidence: 99%

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Reproductive patterns and birth seasonality in a South-American breeding colony of common marmosets,Callithrix jacchus

et al. 1999

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ABSTRACT. We analyzed data on captive-born and wild-caught females housed under natural conditions in a colony located in northeastern Brazil. No differences in reproductive performance were found between captive-born and wild-caught females. Twins were the most frequent litter size, followed by triplets and singletons. No parity effect was observed, with similar infant survival for nulliparous and multiparous females. No significant departures in sex ratio were detected for births and mortality of the male and female infants. The age of the females at the time of pairing showed a negative correlation with pairing-parturition length, but did not affect infant survival. The prolongation in pairing-parturition interval (PPI) and interbirth interval (IBI) was related to birth seasonality. The births were clustered in the second half of the dry season and the beginning of the wet season (November-March), and the time of pairing and the time of infant birth influenced the PPI and IBI, respectively. The use of outdoor cages, which allowed the animals to be aware of the seasonal variations in photo-period and rainfall seems to be sufficient to time the reproductive activity, even when the animals are maintained on a constant food supply.

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Section: Discussionsupporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Reproductive patterns and birth seasonality in a South-American breeding colony of common marmosets,Callithrix jacchus

et al. 1999

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“…In most captive colonies of marmosets and tamarins there is no seasonality to births Snowdon et al, 1985), although these animals are seasonal breeders in the wild (McGrew and Webster, 1995). Most deliveries occur at night (Stevenson and Poole, 1976).…”

Section: Reproductionmentioning

confidence: 99%

Nonhuman Primates

Magden

Mansfield²,

Simmons

et al. 2015

Laboratory Animal Medicine

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“…This means that a mass of 80 g, which represents the combined body mass of twin newborn cotton-top tamarin infants (Leutenegger 1979;McGrew and Webster 1995), entails a reduction in speed of 6% and 19% relative to noncarrying speed for adults and subadults, respectively. The larger reduction in relative speed in subadults may be explained by the fact that subadults moved faster than adults when not carrying.…”

Section: Discussionmentioning

confidence: 99%

“…For example, infant cotton-top tamarins (Saguinus oedipus) weigh 45-50 g at birth, representing ca. 15% of maternal body mass in the case of twins (Leutenegger 1979;McGrew and Webster 1995). Further, infants double in body mass by weeks 5-6 (Ginther et al 2002;Tardif et al 1993).…”

Section: Introductionmentioning

confidence: 90%

The Effect of Infant Body Mass on Carrier Travel Speed in Cotton-top Tamarins (Saguinus oedipus)

et al. 2012

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Infant carrying is common in primates and may be the second most costly activity related to reproduction, after lactation. In cooperative breeding groups of callitrichids, all group members carry and care for twin infants. Previous studies have described the costs of infant carrying in terms of body mass loss and reduced locomotor capability. However, infant carrying may also influence travel speed, an important potential cost because slower speed may handicap foraging, energetic budgets, and predator avoidance. We evaluated the impact of infant carrying on the travel speed of 27 adult and 9 subadult cottontop tamarins (Saguinus oedipus) of both sexes in large outdoor enclosures. We compared carrier speed to speed when not carrying during the 10 weeks after nine births. Subadult tamarins, which have a lower body mass than adults do, moved faster than adults when not carrying. We found no difference between the mean speeds of subadults and adults while carrying. However, the speed of carriers decreased as infant mass increased, and the slope of this negative relationship was more pronounced in subadult carriers. For every 80 g of extra mass load (the body mass of newborn twins), adults reduced their speed by 6% and subadults by 19% relative to noncarrying speed. We also observed a reduction in speed while carrying two infants in adult tamarins as carrying time increased. Our results contribute to an understanding of the costs of infant carrying, and serve to emphasize the importance of cooperative breeding systems in coping with these costs.

show abstract

Birth seasonality in cotton-top tamarins (saguinus oedipus) despite constant food supply and body weight

Cited by 8 publications

References 11 publications

Reproductive patterns and birth seasonality in a South-American breeding colony of common marmosets,Callithrix jacchus

Reproductive patterns and birth seasonality in a South-American breeding colony of common marmosets,Callithrix jacchus

Nonhuman Primates

The Effect of Infant Body Mass on Carrier Travel Speed in Cotton-top Tamarins (Saguinus oedipus)

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