Doctoral Dissertation Research: Dental Topography in Primate and Rodent Radiations

博士论文研究：灵长类动物和啮齿类动物辐射中的牙齿地形图

基本信息

批准号：
1824745
负责人：
John Fleagle
金额：
$ 1.36万
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：
2018
资助国家：
美国
起止时间：
2018-09-01 至 2020-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1824745&HistoricalAwards=false
关键词：
Doctoral Dissertation Research Dental Topography

项目摘要

Understanding how patterns of primate adaptation relate to ecological opportunity and competition is important for reconstructing primate and hominin biodiversity through time. This doctoral dissertation project will advance knowledge about primate adaptation using a quantitative and comparative framework to examine ecological pressures on skeletal shape and diversity for Eocene and Miocene fossil primates, with comparison to fossil rodent taxa. This project involves training and mentoring of undergraduate students, including from groups underrepresented in STEM research, outreach activities to high school students, and public sharing of scanned data through Morphosource.This project will examine the adaptive variability and morphological diversity of primate clades broadly (comparing primates to rodents) and specifically (comparing different primate clades). Disparity and morphotype will be quantified using dental topography of middle Eocene - middle Miocene endemic primates and rodents from both continents. Dental topography will be reconstructed through time and analyzed using phylogenetic comparative methods, allowing for the statistical comparison of disparity and morphotype between different clades and landmasses through time at set intervals. Specifically, this project will 1) test whether the diversification patterns of anthropoid primates differ significantly through time between Afro-Arabia and South America, and compare these patterns to those of hystricognath rodents on the same continents, and 2) identify shifts in dental topographic morphotype throughout the primate and rodent lineages of both continents and assess whether these shifts share similarities and/or differences in timing, degree, and magnitude.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

了解灵长类动物适应的模式如何与生态机会和竞争有关，对于随着时间的推移重建灵长类动物和人类生物多样性至关重要。该博士学位论文项目将使用定量和比较的框架来提高人们对灵长类动物适应的知识，以检查与化石啮齿动物类群相比，始新世和中新世化石灵长类动物的骨骼形状和多样性的生态压力。该项目涉及培训和指导本科生的培训和指导，包括来自STEM研究的人数不足的小组，向高中生的外展活动以及通过Morphosource公开共享扫描数据。该项目将研究灵长类动物的适应性变化和形态学多样性（比较广泛（比较）灵长类动物至啮齿动物），特别是（比较不同的灵长类动物进化枝）。将使用始新世中期中期中期灵长类动物和来自两大洲的中新世中期灵长类动物和啮齿动物的牙齿形态来定量差异和形态。牙齿地形将通过时间进行重建，并使用系统发育比较方法进行分析，从而可以在不同的进化枝和陆地之间的统计比较，并以设定的时间间隔对不同的进化枝和陆地之间进行统计比较。具体而言，该项目将1）测试在非洲 - 阿拉比亚和南美之间的时间之间，人类动物灵长类动物的多元化模式是否有很大差异，并将这些模式与同一大陆上的Hystricognath啮齿动物的模式进行比较，以及2）确定牙齿形态的变化在两大洲的整个灵长类动物和啮齿动物的谱系中，并评估了这些转变是否具有相似性和/或差异，该奖项反映了NSF的法定任务，并被认为是值得通过基金会的智力优点和更广泛的评估来支持的。影响审查标准。