Chuck Vocalizations of Wild Female Squirrel Monkeys (Saimiri sciureus) Contain Information on Caller Identity and Foraging Activity

  title={Chuck Vocalizations of Wild Female Squirrel Monkeys (Saimiri sciureus) Contain Information on Caller Identity and Foraging Activity},
  author={Sue Boinski and Carol L. Mitchell},
  journal={International Journal of Primatology},
Analysis of the acoustic signal of the chuck vocalizations of adult female squirrel monkeys (Saimiri sciureus) in Parque Nacional de Manu, Peru, revealed consistent differences within and between individuals. We quantified four peak frequency parameters: (a) the peak frequency of single chucks, (b) the first and (c) the second peak frequencies of double chucks, and (d) the peak difference: the difference between the first and the second double chuck peaks. One-way ANOVAs and a posteriori… 
Squirrel monkey chuck call: vocal response to playback chucks based on acoustic structure and affiliative relationship with the caller
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The function of loud calls (Hoot Series) in wild western gorillas (Gorilla gorilla).
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Statistical discrimination among vocalizations of individual squirrel monkeys (Saimiri sciureus).
Discriminant analysis was used to distinguish statistically between the chuck vocalizations of individual squirrel monkeys, and it is proposed that this technique be used in retrospective classification of vocalizations by source, when observational identification of the sources of all vocalizations in a rapid sequence is not possible.
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Playback Studies of Affiliative Vocalizing in Captive Squirrel Monkeys: Familiarity as a Cue To Response
Results suggest that playback techniques can be successful with close range affiliative vocalizations like the chuck and that familiarity, species identity, and acoustic structure are all important variables.
Temporal and Structural Analysis of Affiliative Vocal Exchanges in Squirrel Monkeys (Saimiri Sciureus)
Affiliative, aggressive, and vocal behaviors were observed in a group of five adult female squirrel monkeys. Affiliative partner preferences were correlated with use of the chuck vocalization.
Wild squirrel monkey (Saimiri sciureus) “caregiver” calls: Contexts and acoustic structure
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Recognition of order effects in squirrel monkey antiphonal call sequences
  • M. Biben
  • Psychology, Biology
    American journal of primatology
  • 1993
To determine the cues by which animals might identify a chuck that is a request for information from one that is an response, first‐in‐sequence (α) and second‐in-sequence (β) chucks, differing in peak frequency, were recorded from familiar individuals and strangers.