Wear and its effects on dental topography measures in howling monkeys ( Alouatta palliata )
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چکیده
منابع مشابه
Wear and its effects on dental topography measures in howling monkeys (Alouatta palliata).
OBJECTIVES Three dental topography measurements: Dirichlet Normal Energy (DNE), Relief Index (RFI), and Orientation Patch Count Rotated (OPCR) are examined for their interaction with measures of wear, within and between upper and lower molars in Alouatta palliata. Potential inferences of the "dental sculpting" phenomenon are explored. MATERIALS AND METHODS Fifteen occluding pairs of howling m...
متن کاملDental topography and molar wear in Alouatta palliata from Costa Rica.
Paleoprimatologists depend on relationships between form and function of teeth to reconstruct the diets of fossil species. Most of this work has been limited to studies of unworn teeth. A new approach, dental topographic analysis, allows the characterization and comparison of worn primate teeth. Variably worn museum specimens have been used to construct species-specific wear sequences so that m...
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Primate species often eat foods of different physical properties. This may have implications for tooth structure and wear in those species. The purpose of this study was to examine the mechanical defenses of leaves eaten by Alouatta palliata from different social groups at Hacienda La Pacifica in Costa Rica. Leaves were sampled from the home-ranges of groups living in different microhabitats. S...
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The proximate causes of variation in glucocorticoids (GCs) of many free-ranging primates are still unclear, and in some cases, the available evidence is contradictory. Such is the case of mantled howler monkeys. In the present study, we tested whether variation in GC levels in this species could be predicted by energetic challenges or by psychosocial stressors. We focused on two groups living i...
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ژورنال
عنوان ژورنال: American Journal of Physical Anthropology
سال: 2016
ISSN: 0002-9483,1096-8644
DOI: 10.1002/ajpa.23077