After short interbirth intervals, captive callitrichine monkeys have higher infant mortality.
Animal physiology
Animals
Biological sciences
Zoology
Journal
iScience
ISSN: 2589-0042
Titre abrégé: iScience
Pays: United States
ID NLM: 101724038
Informations de publication
Date de publication:
21 Jan 2022
21 Jan 2022
Historique:
received:
08
07
2021
revised:
29
10
2021
accepted:
30
12
2021
entrez:
24
1
2022
pubmed:
25
1
2022
medline:
25
1
2022
Statut:
epublish
Résumé
Life history theory predicts a trade-off between the quantity and quality of offspring. Short interbirth intervals-the time between successive births-may increase the quantity of offspring but harm offspring quality. In contrast, long interbirth intervals may bolster offspring quality while reducing overall reproductive output. Further research is needed to determine whether this relationship holds among primates, which have intensive parental investment. Using Cox proportional hazards models, we examined the effects of interbirth intervals (short, normal, or long) on infant survivorship using a large demographic dataset (n = 15,852) of captive callitrichine monkeys (marmosets, tamarins, and lion tamarins). In seven of the nine species studied, infants born after short interbirth intervals had significantly higher risks of mortality than infants born after longer interbirth intervals. These results suggest that reproduction in callitrichine primates may be limited by physiologic constraints, such that short birth spacing drives higher infant mortality.
Identifiants
pubmed: 35072012
doi: 10.1016/j.isci.2021.103724
pii: S2589-0042(21)01694-1
pmc: PMC8762461
doi:
Types de publication
Journal Article
Langues
eng
Pagination
103724Subventions
Organisme : NIH HHS
ID : P51 OD011133
Pays : United States
Informations de copyright
© 2021 The Author(s).
Déclaration de conflit d'intérêts
The authors declare no competing interests.
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