Paleoenvironments and Cenozoic Radiation of Tropical American Vegetation

美洲热带植被的古环境和新生代辐射

• 批准号: 9206743
• 负责人: Alan Graham
• 金额: $ 10万
• 依托单位: Kent State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-15 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9206743&HistoricalAwards=false
• 关键词: Paleoenvironments; Cenozoic; Radiation; Tropical; American

This research, with work completed earlier, will provide a detailed analysis of the paleoecology of Cenozoic Central America using a series of fossil beds that are extremely rich in pollen. Cores will be sampled from each of two sites---one in southern Mexico and one on Puerto Rico. This study will complement data collected from other sites in the Caribbean and Isthmus regions. The data and the derived inferences will have great implications for understanding the effect of large-scale global change on the dynamics of vegetation, and the effects of those changes on animal populations and climate itself. Specifically, the results will be instrumental in understanding the origin and migration of floras during the closure of the Pan-American land mass. This event is crucial to comprehending the modern floras and faunas of the New World, and it has significance for biogeography, systematics, ecology, etc.

早些时候完成的这项研究，将利用一系列富含花粉的化石床，对中美洲新生代的古生态进行详细的分析。岩芯将分别从两个地点取样-一个在墨西哥南部，一个在波多黎各。这项研究将补充从加勒比和地峡地区其他地点收集的数据。这些数据和推论将对理解大规模全球变化对植被动态的影响，以及这些变化对动物种群和气候本身的影响具有重要意义。具体地说，这些结果将有助于理解泛美陆块闭合期间植物群的起源和迁移。这一事件对了解新大陆的现代植物群和动物群至关重要，对生物地理学、系统学、生态学等都具有重要意义。