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Parental reactions to a dying marmoset infant: conditional investment by the mother, but not the father

Brügger, Rahel K; Burkart, Judith M (2021). Parental reactions to a dying marmoset infant: conditional investment by the mother, but not the father. Behaviour, 159(1):89-109.

Abstract

The reproductive costs of cooperatively breeding callitrichid mothers are remarkable, and they have to rely on fathers and other group members to raise their offspring. Consequently, maternal responsiveness to and investment in infants tends to be conditional, and especially sensitive to infant cues and signals of vigour. Since fathers do not bear the same excessive reproductive costs, their threshold to invest in a dying immature may be lower than in mothers. We present an anecdotal report of reactions of a first-time breeding pair of captive common marmosets (Callithrix jacchus) to their dying infant. We found a male bias in all interactions with the dying infant that did not show typical cues of infant vigour. These results show that the dying infant elicited more investment by the father than the mother. Because of this conditional maternal investment, infants of cooperatively breeding primates may be under selection to advertise their viability, in particular to their mothers.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Department of Comparative Language Science
07 Faculty of Science > Institute of Evolutionary Biology and Environmental Studies
07 Faculty of Science > Department of Evolutionary Anthropology
Dewey Decimal Classification:300 Social sciences, sociology & anthropology
Scopus Subject Areas:Life Sciences > Animal Science and Zoology
Life Sciences > Behavioral Neuroscience
Uncontrolled Keywords:Animal Science and Zoology, Behavioral Neuroscience
Language:English
Date:20 July 2021
Deposited On:24 Aug 2021 09:41
Last Modified:26 Oct 2024 01:35
Publisher:Brill
ISSN:0005-7959
OA Status:Green
Publisher DOI:https://doi.org/10.1163/1568539x-bja10108

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