US-South Africa Planning Visit: The Cape of Good Hope Region as a Model to Understand Marine Speciation

美国-南非计划访问：好望角地区作为了解海洋物种形成的模型

• 批准号: 0117358
• 负责人: Giacomo Bernardi
• 金额: $ 0.59万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-05-01 至 2002-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0117358&HistoricalAwards=false
• 关键词: US; South; Africa; Planning; Visit

0117358BernardiThis award supports a planning visit to South Africa by Professor Giacomo Bernardi, Department of Biology, University of California, Santa Cruz in June 2001. Professor Bernardi will work with Professor Paulette Bloomer, Department of Genetics, University of Pretoria to evaluate the possibility of doing a study on fish species whose populations are found across the Cape of Good Hope region. They will determine whether matching biogeographic and phylogeographic breaks would be found there. The mechanisms involved in the formation of species (speciation) in the marine environment are poorly known. Several models have been proposed to explain the processes of marine speciation. One well-studied system, in the southeastern United States, emphasized the role of genetic partitioning of populations across a defined geographic region (phylogeographic break). This phylogeographic break also matched a region of species discontinuity (biogeographic boundary). This system is now well documented, but so far has not been generalized to other systems. During the planning visit to South Africa, Bernardi and Bloomer will try to collect fishes whose populations are found on both Atlantic and Indian Ocean sides of the Cape Region and that are endemic to Southern Africa. If successful, they will formulate proposals for cooperative research proposals to US and South African funding agencies.

0117358Bernardi 该奖项支持加州大学圣克鲁斯分校生物学系 Giacomo Bernardi 教授计划于 2001 年 6 月访问南非。Bernardi 教授将与比勒陀利亚大学遗传学系 Paulette Bloomer 教授合作评估这样做的可能性一项针对好望角地区鱼类种群的研究。 他们将确定是否会在那里找到匹配的生物地理学和系统地理学断裂。 人们对海洋环境中物种形成（物种形成）的机制知之甚少。 已经提出了几种模型来解释海洋物种形成的过程。 美国东南部的一个经过充分研究的系统强调了特定地理区域（系统发育地理学断裂）中种群遗传划分的作用。 这种系统发育地理断裂也与物种不连续区域（生物地理边界）相匹配。 该系统现已有详细记录，但迄今为止尚未推广到其他系统。 在计划访问南非期间，伯纳迪和布卢默将尝试收集开普地区大西洋和印度洋沿岸的鱼类，以及南部非洲特有的鱼类。 如果成功，他们将向美国和南非资助机构制定合作研究提案。