Incisor microwear and feeding behavior in Alouatta seniculus and Cebus olivaceus

American Journal of Primatology - Tập 20 Số 1 - Trang 43-50 - 1990
Peter S. Ungar1
1Doctoral Program in Anthropological Sciences, State University of New York at Stony Brook, Stony Brook.

Tóm tắt

AbstractDental microwear features on the labial surfaces of maxillary central incisors of wild‐shot museum specimens of Cebus olivaceus (n = 11) and Alouatta seniculus (n = 7) were examined at 200 × by polarized light microscopy. While wear scratch orientation patterns do not differ between the two samples, Cebus has a significantly higher density of wear features, and displays scratches that extend further cervically. Preliminary observations (n = 50 hours) on anterior tooth use in these species at Hato Masaguaral, in the Llanos of Venezuela, provide suggestions regarding how foraging patterns reported in the literature relate to these microwear differences. Cebus uses its front teeth more frequently in the manipulation of a greater variety of objects than does Alouatta.

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Tài liệu tham khảo

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American Journal of Primatology

Tập 20 Số 1

43-50

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