Acoustic Properties of Affiliative Vocalizations That Promote Individual Recognition in Squirrel Monkeys
Abstract
Adult female squirrel monkeys (Saimiri spp.) that are socially familiar are known to exchange the "chuck" vocalization in antiphonal sequences. Previous observations and playback experiments in captivity show that females can discriminate between the chucks of conspecific individuals. The chucks of closely affiliated partners are answered more than those of nonaffiliated group members; the chucks of (affiliated and nonaffiliated) familiar group members are answered more than unfamiliar chucks from strangers; unfamiliar chucks from strangers are most likely answered if they are acoustically similar to familiar group chucks; and all chuck stimulus classes are usually answered more than silent controls. In this study, we analyze the acoustic properties of chucks and perform additional playback experiments to determine those acoustic properties that foster individual recognition.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2003
- Accession Number
- ADP022995
Entities
People
- Atiya Stancil
- Deborah Bernhards
- John D. Newman
- Joseph Soltis
- Karen Ladd
Organizations
- Eunice Kennedy Shriver National Institute of Child Health and Human Development