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A Common Marmoset Model of Mother-Infant Intervention for Breastfeeding Disorders in the Presence of Paternal Inhibition and Maternal Neglect

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Maternal subgrouping in lowland gorillas.

¹Department of Psychological Science, Ball State University, Muncie, IN 47306 U.S.A.

Behavioural Processes

|June 14, 2014

Summary

Gorilla mothers with infants did not seek out the dominant male. Instead, female gorillas preferred interacting with other mothers, forming subgroups independent of the male.

Area of Science:

Primate behavior
Ethology
Mammalian social structures

Background:

Previous research suggested female gorillas seek dominant males when with infants.
The role of the dominant male in female social dynamics requires further investigation.

Purpose of the Study:

To examine the subgrouping phenomenon in captive lowland gorilla mothers.
To investigate female gorilla proximity-seeking behavior towards the dominant male, particularly when infants are present.

Main Methods:

Observational study of a captive lowland gorilla group.
Analysis of interaction scores and proximity data among females and the dominant male.

Main Results:

Interaction data did not support the hypothesis that males are attractive to mothers.

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Female gorillas actively avoided interacting with the dominant male and rarely initiated contact.

Observed social clustering and subgrouping were primarily among mothers.

Conclusions:

Female lowland gorillas with infants do not seek proximity to the dominant male.
Preferential social contact among mothers explains observed subgrouping patterns.