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Exploring Diachronic Change in the Population-Specific Vocalizations of Chimpanzees (Pan troglodytes).

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Date Issued:
2007
Abstract/Description:
Chimpanzees have long been documented as using population-specific vocalizations, implying learning rather than just genetics in chimpanzee calls. In order for population-specific vocalizations to arise, diachronic change, or evolution, of the various features of the vocalizations must occur. When a population is split, as they were in the current study, there are changes of social structure, environment, and emotional stress (all factors which can lead to rapid phonological change in humans). These factors can act as a catalyst for punctuated diachronic change. A vocal survey was performed on two groups of chimpanzees who had been separated from each other two years prior to the research. The results of the survey revealed significant differences between the two groups' vocalizations. These results make a case for diachronic change in chimpanzee vocalizations, the seed of population-specific calls.
Title: Exploring Diachronic Change in the Population-Specific Vocalizations of Chimpanzees (Pan troglodytes).
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Name(s): Halloran, Andrew R.
Broadfield, Douglas C., Thesis advisor
Florida Atlantic University, Degree grantor
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Date Created: 2007
Date Issued: 2007
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 445 p.
Language(s): English
Abstract/Description: Chimpanzees have long been documented as using population-specific vocalizations, implying learning rather than just genetics in chimpanzee calls. In order for population-specific vocalizations to arise, diachronic change, or evolution, of the various features of the vocalizations must occur. When a population is split, as they were in the current study, there are changes of social structure, environment, and emotional stress (all factors which can lead to rapid phonological change in humans). These factors can act as a catalyst for punctuated diachronic change. A vocal survey was performed on two groups of chimpanzees who had been separated from each other two years prior to the research. The results of the survey revealed significant differences between the two groups' vocalizations. These results make a case for diachronic change in chimpanzee vocalizations, the seed of population-specific calls.
Identifier: FA00000982 (IID)
Degree granted: Dissertation (Ph.D.)--Florida Atlantic University, 2007.
Collection: FAU Electronic Theses and Dissertations Collection
Note(s): Dorothy F. Schmidt College of Arts and Letters
Subject(s): Chimpanzees--Vocalization
Auditory perception
Linguistic change--Study and teaching
Vocalization, Animal
Held by: Florida Atlantic University Libraries
Sublocation: Digital Library
Persistent Link to This Record: http://purl.flvc.org/fau/fd/FA00000982
Use and Reproduction: Copyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.