Reproductive energetics in free-living female chimpanzees (Pan troglodytes schweinfurthii)


Journal Article

Mammalian females generally carry the bulk of reproductive costs. They gestate for relatively long periods of time and provide the majority of parental care for dependent offspring. For this reason, many studies have examined how females deal with the energetic costs of reproduction. Here, we examine the influence of reproductive state on activity budgets, diet quality, and sociality in free-living female chimpanzees (Pan troglodytes) at Gombe National Park, Tanzania. After controlling for dominance rank, we found that pregnant and lactating females consumed higher quality foods than nonpregnant, nonlactating females. However, pregnant females also traveled less. This result did not reflect differences in sociality, as the pregnant female group sizes included in our analyses were comparable to those in other reproductive categories.

Full Text

Duke Authors

Cited Authors

  • Murray, CM; Lonsdorf, EV; Eberly, LE; Pusey, AE

Published Date

  • November 30, 2009

Published In

Volume / Issue

  • 20 / 6

Start / End Page

  • 1211 - 1216

Electronic International Standard Serial Number (EISSN)

  • 1465-7279

International Standard Serial Number (ISSN)

  • 1045-2249

Digital Object Identifier (DOI)

  • 10.1093/beheco/arp114

Citation Source

  • Scopus