Dissertation Research : Anterior Dental Microwear and Tooth Use Among Sumatran Anthropoid Primates

论文研究：苏门答腊类人灵长类动物的前牙微磨损和牙齿使用

• 批准号: 9009046
• 负责人: John Fleagle
• 金额: $ 1.17万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-07-01 至 1992-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9009046&HistoricalAwards=false
• 关键词: Dissertation; Research; Anterior; Dental; Microwear

In recent years microscopic study of wear patterns on molar teeth has provided useful inferences on the diet of fossil hominoids. This is the first attempt to reconstruct dietary information from the analysis of anterior (incisor) teeth. Central incisors of four sympatric primate species form Sumatra (Macaca fascicularis, Presbytis thomasi, Hylobates lar, and Pongo pygmaeus) will be examined by scanning electron microscopy. Features will be quantified using a semi-automated image analysis procedure, and species will be compared on the basis of revealed dental microwear patterns. These patterns will be use to generate predictions concerning degree of incisor use, items contracting these teeth, and type of ingestive behavior. Resulting predictions will be evaluated by observing the same four living primate species in their natural habitat at Ketambe, in northern Sumatra. The proposed research will (1) introduce a precise an rapid procedure for the quantification of dental microwear, (2) provide data on incisor microwear and tooth use among Sumatran primates, and (3) determine associations between incisor use and microwear so that the former may be predicted for the latter. Such associations will facilitate dietary inferences for fossil incisors.

近年来，对臼齿磨损模式的显微研究为类人猿化石的饮食提供了有用的推论。 这是通过前牙（切牙）分析来重建饮食信息的首次尝试。 苏门答腊岛四种同域灵长类动物（食蟹猴、Presbytis thomasi、Hylobates lar 和 Pongo pygmaeus）的中切牙将通过扫描电子显微镜进行检查。 将使用半自动图像分析程序对特征进行量化，并根据显示的牙齿微磨损模式对物种进行比较。 这些模式将用于生成有关门牙使用程度、收缩这些牙齿的物品以及摄入行为类型的预测。 将通过观察苏门答腊岛北部 Ketambe 自然栖息地中的四种现存灵长类动物来评估最终的预测。 拟议的研究将（1）引入一种精确快速的程序来量化牙齿微磨损，（2）提供苏门答腊灵长类动物门牙微磨损和牙齿使用的数据，以及（3）确定门牙使用和微磨损之间的关联，以便前者可以预测后者。 这种关联将有助于对化石门牙的饮食推断。