Maternal death and offspring fitness in multiple wild primates.

Journal Article (Journal Article)

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.

Full Text

Duke Authors

Cited Authors

  • Zipple, MN; Altmann, J; Campos, FA; Cords, M; Fedigan, LM; Lawler, RR; Lonsdorf, EV; Perry, S; Pusey, AE; Stoinski, TS; Strier, KB; Alberts, SC

Published Date

  • January 2021

Published In

Volume / Issue

  • 118 / 1

Start / End Page

  • e2015317118 -

PubMed ID

  • 33443206

Pubmed Central ID

  • PMC7821045

Electronic International Standard Serial Number (EISSN)

  • 1091-6490

International Standard Serial Number (ISSN)

  • 0027-8424

Digital Object Identifier (DOI)

  • 10.1073/pnas.2015317118


  • eng