Cross‐genus adoption of a marmoset (<i>Callithrix jacchus</i>) by wild capuchin monkeys (<i>Cebus libidinosus</i>): case report

Izar, Patrícia; Verderane, Michele P.; Visalberghi, Elisabetta; Ottoni, Eduardo Β.; Oliveira, M. G. de; Shirley, Jeanne; Fragaszy, Dorothy M.

doi:10.1002/ajp.20259

Cited by 38 publications

(16 citation statements)

References 16 publications

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“…Here, we describe for the first time a lengthy cross‐genus adoption in delphinids, a phenomenon reported only once before in wild mammals (Izar et al, ). A similar case of a female adopting an extra‐group infant alongside her own biological offspring was recently described in black and white colobus monkeys ( Colobus angolensis palliatus ) but the adoptee was of the same species as its foster mother (Dunham & Opere, ).…”

Section: Discussionsupporting

confidence: 58%

“…Complete adoptions (i.e., when alloparents provide exclusive parental care for another’s offspring until death or disappearance of the calf) are poorly documented in non‐human mammals despite several published reports (e.g., Riedman & LeBoeuf, ; Thierry & Anderson, ; Agoramoorthy & Rudran, ; Pluháček, Bartošová, & Bartoš, ) including cetaceans (e.g., Tursiops sp., Howells et al, ). All these reports involved intraspecific adoptions with one exception documented in wild, artificially provisioned capuchin monkeys ([ Cebus libidinosus ] Izar et al, ) where an infant young marmoset ( Callithrix jacchus ) appeared to be socially integrated into the capuchin’s group during a 14‐month period and benefitted from nurturant behaviors displayed by two successive adoptive “mothers” and strong tolerance from all members of the group. One interspecific adoption was also suggested in Indo‐Pacific humpback dolphins ( Sousa chinensis ), where a persistent association between three adult humpback dolphins and an Irrawaddy dolphin ( Orcaella brevirostris ) calf was observed between April 2008 and March 2009 (Kamaruzzan & Jaaman, ).…”

Section: Introductionmentioning

confidence: 99%

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Cross‐genus adoptions in delphinids: One example with taxonomic discussion

et al. 2019

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Although relatively rare, adoptions have been reported in a number of mammals, involving almost exclusively individuals of the same species, and hardly ever between species or across genera. Adoption remains poorly documented and its proximate causes are controversial. Here, we describe a unique case of a cross‐genus adoption within a small community of common bottlenose dolphins (Tursiops truncatus) at Rangiroa Atoll in French Polynesia. It involves a foster female adopting a presumed melon‐headed whale (Peponocephala electra) calf while already mothering its presumed biological offspring. While the inclusive fitness hypothesis can be rejected for this adult female mother, acquisition of parental skills is also unlikely to have driven adoption in parallel to natural motherhood. We argue that the primiparous foster mother’s inexperience and personality may have contributed to factors driving such non‐adaptive behavior. We also propose that the adoptee’s persistence in initiating and maintaining an association with the adult female bottlenose dolphin could have played a major role in the adoption’s ultimate success, as well as the persistence of this cross‐genus adoption after the disappearance of the biological offspring. A brief discussion of adoption and hybridization within the Delphinidae taxon is included to identify how this cross‐genus adoption fits into context of marine mammal parental care.

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Section: Discussionsupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Cross‐genus adoptions in delphinids: One example with taxonomic discussion

et al. 2019

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“…Kidnapping and adoptions have been reported in some mammals (Riedman and Le Bouef 1982), including primates (Clarke 1990;Calegaro-Marques and BiccaMarques 1993;Fortes 2002), and even a cross-genus adoption has been observed (Izar et al 2006). We are not familiar, however, with reports of infant swapping, in which surviving mothers exchange infants for extended periods.…”

Section: Introductionmentioning

confidence: 95%

A case of infant swapping by wild northern muriquis (Brachyteles hypoxanthus)

2007

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Allo-parenting has been observed in a variety of female primates, and typically infants are reunited with their biological mothers assuming that their mothers are alive. We observed an exception to this pattern when two wild northern muriquis (Brachyteles hypoxanthus) exchanged infants of different sexes and then reared their adopted infants through weaning. The process of this exchange began when the infants were 4 and 8 days old, respectively. The mother of a 4-day old female carried and nursed her own daughter and the 8-day old son of a second female. The exchange ended when the second mother was first observed carrying the wrong infant 1.5 days later. This observation raises questions about the age and mechanisms of mother-infant recognition in this species, and about assumptions of mother-infant relatedness based on behavioral observations alone.

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“…Spontaneous adoption of infants in captive primates has also been observed (Fucillo et al 1983). Cases of adoption by primates in the wild are extremely rare (Maestripieri 2001;Izar et al 2006).…”

Section: Introductionmentioning

confidence: 99%

A case of adoption in a wild group of black-fronted titi monkeys (Callicebus nigrifrons)

Cäsar

Young

2007

Primates

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We observed a case of infant adoption in an unprovisioned group of wild black-fronted titi monkeys (Callicebus nigrifrons). During our long-term field study we noticed that an infant had moved from one of our study groups ("Desbotado") to another ("Rio"). Observations of the adoptive group confirm that it was being cared for by the adult male, and initially the group's adult female was nursing the infant alongside her biological infant. Interestingly, the native and adoptive groups have frequent inter-group interactions, but at no point have we observed the native group trying to retrieve its infant. As of April 2007 the infant has been living in its adoptive group for 19 months. These data document the first case of adoption in this genus; they suggest that infant recognition is poorly developed in this species and that under certain circumstances wild groups of C. nigrifrons can successfully rear twins. In our study population reproductive females give birth to one infant every year; the only case when this has not happened is with the group that adopted the infant, suggesting that adoption may generate a reproductive cost.

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Cross‐genus adoption of a marmoset (Callithrix jacchus) by wild capuchin monkeys (Cebus libidinosus): case report

Cited by 38 publications

References 16 publications

Cross‐genus adoptions in delphinids: One example with taxonomic discussion

Cross‐genus adoptions in delphinids: One example with taxonomic discussion

A case of infant swapping by wild northern muriquis (Brachyteles hypoxanthus)

A case of adoption in a wild group of black-fronted titi monkeys (Callicebus nigrifrons)

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