Document Detail

Barbary macaques categorize shrill barks into two call types.
MedLine Citation:
PMID:  9632468     Owner:  NLM     Status:  Publisher    
In response to disturbances in their surroundings, Barbary macaques, Macaca sylvanus, utter a distinctive call, the 'shrill bark'. Differences within this call type correlate with the stimulus eliciting the calling. I tested whether monkeys categorized calls according to the eliciting stimulus and whether their perception of calls coincided with the classification derived from the acoustic analysis. Different playback designs using the habituation-dishabituation paradigm were created in which calls exhibiting varying degrees of acoustic difference were paired. I conducted experiments in two populations of semi-free ranging Barbary macaques. The results suggest that subjects categorized calls according to the eliciting stimulus. In addition, subjects from the population in which the recordings were made were significantly better than subjects from the other population at discriminating between calls with small acoustic differences. The results suggest that call categorization is influenced by experience, mediated by individual knowledge of the caller or common call characteristics within the population. Copyright 1998 The Association for the Study of Animal Behaviour. Copyright 1998 The Association for the Study of Animal Behaviour.
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Publication Detail:
Journal Detail:
Title:  Animal behaviour     Volume:  55     ISSN:  0003-3472     ISO Abbreviation:  Anim Behav     Publication Date:  1998 Apr 
Date Detail:
Created Date:  1998-06-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376746     Medline TA:  Anim Behav     Country:  -    
Other Details:
Languages:  ENG     Pagination:  799-807     Citation Subset:  -    
Institut für Verhaltensbiologie, Freie Universität Berlin, Germany
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