Maternal death and offspring fitness in multiple wild primates.
intergenerational effects
maternal condition
maternal death
maternal effects
maternal grief
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
05 01 2021
05 01 2021
Historique:
entrez:
14
1
2021
pubmed:
15
1
2021
medline:
15
5
2021
Statut:
ppublish
Résumé
Primate offspring often depend on their mothers well beyond the age of weaning, and offspring that experience maternal death in early life can suffer substantial reductions in fitness across the life span. Here, we leverage data from eight wild primate populations (seven species) to examine two underappreciated pathways linking early maternal death and offspring fitness that are distinct from direct effects of orphaning on offspring survival. First, we show that, for five of the seven species, offspring face reduced survival during the years immediately preceding maternal death, while the mother is still alive. Second, we identify an intergenerational effect of early maternal loss in three species (muriquis, baboons, and blue monkeys), such that early maternal death experienced in one generation leads to reduced offspring survival in the next. Our results have important implications for the evolution of slow life histories in primates, as they suggest that maternal condition and survival are more important for offspring fitness than previously realized.
Identifiants
pubmed: 33443206
pii: 2015317118
doi: 10.1073/pnas.2015317118
pmc: PMC7821045
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : NICHD NIH HHS
ID : P2C HD065563
Pays : United States
Déclaration de conflit d'intérêts
The authors declare no competing interest.
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