Female-committed infanticide followed by juvenile-enacted cannibalism in wild white-faced capuchins.
Cebus imitator
Conspecific necrophagy
Primate thanatology
Social facilitation
Journal
Primates; journal of primatology
ISSN: 1610-7365
Titre abrégé: Primates
Pays: Japan
ID NLM: 0401152
Informations de publication
Date de publication:
Nov 2021
Nov 2021
Historique:
received:
27
07
2021
accepted:
12
09
2021
pubmed:
10
10
2021
medline:
26
11
2021
entrez:
9
10
2021
Statut:
ppublish
Résumé
On 5 February 2021, we observed the first instance of female-committed infanticide followed by cannibalism in a long-studied (> 35 years) population of wild white-faced capuchins (Cebus imitator) in the Santa Rosa Sector of the Área de Conservación Guanacaste, Costa Rica. The events leading up to and including the infanticide and cannibalism were observed and documented ad libitum, with segments digitally recorded, and a post-mortem necropsy performed. Here we detail our observations and evaluate the events within the framework of leading adaptive explanations. The infanticide may have been proximately motivated by resource competition or group instability. The circumstances of the observed infanticide provided support for the resource competition, adoption avoidance, and social status hypotheses of infanticide, but not for the exploitation hypothesis, as neither the perpetrator nor her kin consumed the deceased infant. The subsequent cannibalism was performed by juveniles who observed the infanticide and may have been stimulated by social facilitation and their prior experience of meat consumption as omnivores. To our knowledge, cannibalism has been documented only once before in C. imitator, in an adjacent study group, with the two cases sharing key similarities in the context of occurrence and manner of consumption. These observations add to our growing knowledge of the evolutionary significance of infanticide and its importance as a reproductive strategy in nonhuman primates.
Identifiants
pubmed: 34626294
doi: 10.1007/s10329-021-00949-z
pii: 10.1007/s10329-021-00949-z
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1037-1043Informations de copyright
© 2021. Japan Monkey Centre.
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