Unconfounded evidence of sex-biased, postnatal maternal effort by Mongolian gerbil dams.


Journal Article

In previous studies of effects of offspring sex on postnatal maternal effort there has often been unintentional confounding of the sex ratio of the pups that a dam reared with the sex ratio of the litter that she gestated. By controlling the sex ratio of litters that female subjects gestated, we showed that (1) the probability of dams retrieving pups was influenced by the sex ratio of the litters dams gestated, not by the sex of litters that dams reared and (2) both frequency of nursing and duration of vaginal closure were influenced by the sex of litters that dams reared, not by the sex ratios of litters that dams gestated.

Full Text

Cited Authors

  • Clark, MM; Galef, BG

Published Date

  • December 1991

Published In

Volume / Issue

  • 24 / 8

Start / End Page

  • 539 - 546

PubMed ID

  • 1773912

Pubmed Central ID

  • 1773912

Electronic International Standard Serial Number (EISSN)

  • 1098-2302

International Standard Serial Number (ISSN)

  • 0012-1630

Digital Object Identifier (DOI)

  • 10.1002/dev.420240802


  • eng