ADVANCE Fellows Award: Egg Size Evolution of Free-Spawning Marine Invertebrates in Neogene Tropical America

高级研究员奖：美洲热带新近纪自由产卵海洋无脊椎动物的卵尺寸演变

• 批准号: 0603755
• 负责人: Amy Moran
• 金额: --
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-15 至 2007-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0603755&HistoricalAwards=false
• 关键词: ADVANCE; Fellows; Award; Egg; Size

This award provides funding for the PI to study life history evolution in marine systems by combining biogeographical, biochemical, morphological and paleontological approaches to examining egg size evolution in a family of marine bivalves relative to a major biogeographic event, the rise of the Central American Isthmus (CAI) at 2.8-3.1 million years ago. The rise of the CAI separated the Atlantic and Pacific oceans and isolated populations of previously-continuous species (known as geminate species pairs). The presence of multiple closely-related species offers a unique, replicated natural experiment that can shed light on evolutionary forces. The PI will study the egg size evolution of bivalves in the family Arcidae to determine the rate and timing of the evolution relative to the rise of the CIA. This research will provide the first descriptive data on egg size in the past, and will add a new approach for exploration of oceanic change and evolutionary response to geologic events. In addition, funding will support research experience for five undergraduate students.

该奖项为PI提供资金，通过结合地理学，生物化学，形态学和古生物学方法来研究海洋系统中的生活史进化，以研究海洋双壳类家族中相对于重大地理事件的卵大小进化，即中美洲地峡（CAI）在280 - 310万年前的崛起。CAI的兴起分隔了大西洋和太平洋，并隔离了以前连续物种的种群（称为双生物种对）。多个密切相关的物种的存在提供了一个独特的，可复制的自然实验，可以揭示进化的力量。PI将研究Arabiae家族中双壳类的卵大小进化，以确定相对于CIA崛起的进化速度和时间。这项研究将提供过去第一个关于卵大小的描述性数据，并将为探索海洋变化和对地质事件的演化响应提供新的方法。此外，资金将支持五名本科生的研究经验。