Differences in molar wear gradient between juvenile macaques and langurs

M. F. Teaford

Research output: Contribution to journalArticle

Abstract

Interspecific differences in the amount and form of molar wear in nonhuman primates are only beginning to be documented and understood. The purpose of this study was to look at the wear gradient between M1 and dm2 in a sample of macaques and langurs to determine if differences in wear gradient could be related to differences in diet. A skeletal collection of wild shot Presbytis cristatus and Macaca fascicularis from the Museum of Comparative Zoology at Harvard University was examined using stereophotogrammetic techniques. X, Y, and Z coordinates were used to compute the areas of dentin exposure on the buccal cusps of M1 and the buccal cusps of dm2. The relationship between these variables was examined using Bartlett's three group method and least squares regression. Intergeneric comparisons of the resultant y-intercepts indicate that the macaques have more dentin exposed on dm2 when there is none exposed on M1. Factors that might be responsible for this difference include differences in dentin/enamel structure, differences in molar eruption timing, and differences in behavior. At the present time, behavioral differences between the genera appear to be the most likely cause of the difference in wear gradient.

Original languageEnglish (US)
Pages (from-to)323-330
Number of pages8
JournalAmerican Journal of Physical Anthropology
Volume57
Issue number3
StatePublished - 1982

Fingerprint

Cercopithecidae
Macaca
Dentin
museum
teeth
Cheek
regression
cause
present
Zoology
Presbytis
Museums
Macaca fascicularis
Group
enamel
zoology
Dental Enamel
Least-Squares Analysis
Primates
least squares

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Anthropology

Cite this

Differences in molar wear gradient between juvenile macaques and langurs. / Teaford, M. F.

In: American Journal of Physical Anthropology, Vol. 57, No. 3, 1982, p. 323-330.

Research output: Contribution to journalArticle

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