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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Age-related tooth wear differs between forest and savanna primates
PLoS ONE, Volume 9, No. 4, Article e94938, Year 2014
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Description
Tooth wear in primates is caused by aging and ecological factors. However, comparative data that would allow us to delineate the contribution of each of these factors are lacking. Here, we contrast age-dependent molar tooth wear by scoring percent of dentine exposure (PDE) in two wild African primate populations from Gabonese forest and Kenyan savanna habitats. We found that forest-dwelling mandrills exhibited significantly higher PDE with age than savanna yellow baboons. Mandrills mainly feed on large tough food items, such as hard-shell fruits, and inhabit an ecosystem with a high presence of mineral quartz. By contrast, baboons consume large amounts of exogenous grit that adheres to underground storage organs but the proportion of quartz in the soils where baboons live is low. Our results support the hypothesis that not only age but also physical food properties and soil composition, particularly quartz richness, are factors that significantly impact tooth wear. We further propose that the accelerated dental wear in mandrills resulting in flatter molars with old age may represent an adaptation to process hard food items present in their environment. © 2014 Galbany et al.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC3986402/bin/pone.0094938.s001.doc
Authors & Co-Authors
Galbany, Jordi
United States, Washington, D.c.
Center for the Advanced Study of Human Paleobiology
Spain, Barcelona
Universitat de Barcelona
Romero-Rameta, Alejandro
Spain, Alicante
Universitat D'alacant
Mayo-Alesón, Mercedes
Spain, Barcelona
Universitat de Barcelona
Itsoma, Fiacre
Gabon
Sodepal Société du Parc D'exploitation de la Lékédi
Gamarra, Beatriz
Spain, Barcelona
Universitat de Barcelona
Pérez-Pérez, Alejandro
Spain, Barcelona
Universitat de Barcelona
Willaume, Eric
Gabon
Sodepal Société du Parc D'exploitation de la Lékédi
Kappeler, Peter M.
Germany, Gottingen
Deutsches Primatenzentrum
Charpentier, Marie J.E.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Statistics
Citations: 54
Authors: 9
Affiliations: 6
Identifiers
Doi:
10.1371/journal.pone.0094938
e-ISSN:
19326203
Research Areas
Food Security
Health System And Policy