Document Detail

Age and individual foraging behavior predict tooth wear in Amboseli baboons.
MedLine Citation:
PMID:  20721946     Owner:  NLM     Status:  MEDLINE    
Teeth represent an essential component of the foraging apparatus for any mammal, and tooth wear can have significant implications for survival and reproduction. This study focuses on tooth wear in wild baboons in Amboseli, southern Kenya. We obtained mandibular and maxillary tooth impressions from 95 baboons and analyzed digital images of replicas made from these impressions. We measured tooth wear as the percent dentine exposure (PDE, the percent of the occlusal surface on which dentine was exposed), and we examined the relationship of PDE to age, behavior, and life history variables. We found that PDE increased significantly with age for both sexes in all three molar types. In females, we also tested the hypotheses that long-term patterns of feeding behavior, social dominance rank, and one measure of maternal investment (the cumulative number of months that a female had dependent infants during her lifetime) would predict tooth wear when we controlled for age. The hypothesis that feeding behavior predicted tooth wear was supported. The percent of feeding time spent consuming grass corms predicted PDE when controlling for age. However, PDE was not associated with social dominance rank or maternal investment.
Jordi Galbany; Jeanne Altmann; Alejandro Pérez-Pérez; Susan C Alberts
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2010-08-18
Journal Detail:
Title:  American journal of physical anthropology     Volume:  144     ISSN:  1096-8644     ISO Abbreviation:  Am. J. Phys. Anthropol.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-12-14     Completed Date:  2011-03-03     Revised Date:  2014-09-21    
Medline Journal Info:
Nlm Unique ID:  0400654     Medline TA:  Am J Phys Anthropol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  51-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Wiley-Liss, Inc.
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MeSH Terms
Aging / physiology*
Feeding Behavior / physiology
Papio cynocephalus / physiology*
Social Dominance
Tooth Wear / pathology*
Grant Support
P30 AG024361/AG/NIA NIH HHS; P30 AG024361/AG/NIA NIH HHS; P30 AG024361-05/AG/NIA NIH HHS; R01 AG034513/AG/NIA NIH HHS; R01 AG034513-02/AG/NIA NIH HHS; R24 HD047879/HD/NICHD NIH HHS

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