Vocal behavior of black-fronted titi monkeys (Callicebus nigrifrons): Acoustic properties and behavioral contexts of loud calls
Loud calls can be heard over long distances due to their high amplitude and low frequency. These calls are commonly used for both within‐ and between‐group communication in many bird and primate species. In the Neotropics, mated pairs of socially monogamous titi monkeys (genus Callicebus) emit consp...
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Published in | American journal of primatology Vol. 76; no. 8; pp. 788 - 800 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
United States
Blackwell Publishing Ltd
01.08.2014
Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Loud calls can be heard over long distances due to their high amplitude and low frequency. These calls are commonly used for both within‐ and between‐group communication in many bird and primate species. In the Neotropics, mated pairs of socially monogamous titi monkeys (genus Callicebus) emit conspicuous, coordinated loud calls. These vocalizations appear to play a role in territorial defense, a hypothesis derived from studies of only three of the 31 recognized Callicebus species. Here, we describe the acoustic properties and organization of the loud calls of black‐fronted titi monkeys (Callicebus nigrifrons). We compare the behavioral and ecological contexts associated with these vocalizations to investigate their role in within‐ and between‐group communication, resource defense, and mate defense. Black‐fronted titi monkeys create loud calls by combining a finite number of syllables to form more complex phrases, which are assembled to compose long sequences of loud calls. Bioacoustic features distinguish the loud calls used in different contexts, involving communication within‐ and between‐groups. We found support for the hypothesis that vocalizations used for between‐group communication are cooperative displays used by the mated pair and other group members to regulate access to important food resources, such as fruits. On the other hand, we only found weak support for the mate defense hypothesis. Am. J. Primatol. 76:788–800, 2014. © 2014 Wiley Periodicals, Inc. |
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Bibliography: | Natural Sciences and Engineering Research Council of Canada (NSERC) (partial support) ark:/67375/WNG-CT0X5VW4-9 istex:14BFCD4CE7D9851FDACD022994AB03B47AFDDD70 ArticleID:AJP22270 Canada Foundation for Innovation The Government of Ontario CAPES - No. BEX 5637/11-2 Brazilian National Research Council - No. CNPq #303154/2009-8 FAPESP - No. 2008/05127-0 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
ISSN: | 0275-2565 1098-2345 |
DOI: | 10.1002/ajp.22270 |