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Central Washington University

Mommy Issues: Do Differential Rearing Histories Affect the Social Behavior of Captive Chacma Baboons (<i>Papio ursinus</i>)

Abstract

dc:description.abstract

<p>I observed the behavior of 17 chacma baboons (<em>Papio ursinus</em>) in order to understand the relationship between rearing history, dominance hierarchy, and social behavior. The Centre for Animal Rehabilitation and Education (C.A.R.E.) has utilized hand-rearing in the past and is currently using a surrogate-rearing method. Hand-rearing involves one or more primary caregivers attending to an infant for 6 – 12 months. Surrogate-rearing involves one individual being the primary surrogate for the first 3 months of the infant’s life prior to bonding her or him to an adult female baboon before integrating both back into the surrogate’s troop. Mother-reared individuals were also observed in this study. Mother-reared individuals are individuals who were born into the troop and raised by their mothers. I used a David’s Score to assess rank and generalized linear mixed models to assess the effects that rearing history, rank, sex, age, and presence of kin in the troop, have on each individual’s behaviors. I found no difference in rank between rearing history. Moreover, rearing history did not affect the rate at which individuals participated in species-typical behaviors. Individuals of different rearing histories developed appropriate behaviors that mirror a wild troop based on their position in the dominance hierarchy, sex, and presence of kin in the troop. While my results suggest that both methods are successful for a rehabilitation setting, if resources are available, surrogate-rearing should be used as it replaces the lost mother figure and reduces human dependency earlier in life.</p>

Degree

thesis:*
Name thesis:degree_name
Master of Science (MS)
Discipline thesis:degree_discipline
Primate Behavior
Year dc:date.available
2020

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Spencer, Madeleine
Contributors dc:contributor
  • Sofia K. Blue
  • Lori Sheeran
  • Jessica Mayhew

Subjects

dc:subject × 11

Identifiers

dc:identifier.*
Repository record dc:identifier
https://digitalcommons.cwu.edu/etd/1378
OAI identifier oai:identifier
oai:digitalcommons.cwu.edu:etd-2403

Chain of custody

source
Harvested from
Central Washington University
Base URL
digitalcommons.cwu.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Spencer, Madeleine. Mommy Issues: Do Differential Rearing Histories Affect the Social Behavior of Captive Chacma Baboons (<i>Papio ursinus</i>). 2020. https://digitalcommons.cwu.edu/etd/1378