Collaborative Research: Graptolite Biogeography, Paleo-GIS, and Evolutionary Dynamics of Early Paleozoic Zooplankton

合作研究：笔石生物地理学、古地理信息系统和早古生代浮游动物的进化动力学

• 批准号: 0957672
• 负责人: H. David Sheets
• 金额: $ 5.86万
• 依托单位: Canisius College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-06-01 至 2012-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0957672&HistoricalAwards=false
• 关键词: Collaborative; Research; Graptolite; Biogeography; Paleo

Collaborative Research: Graptolite Biogeography, Paleo-GIS, and Evolutionary Dynamics of Early Paleozoic ZooplanktonDaniel Goldman, Dayton University, EAR-0958372Charles Mitchell, SUNY, Buffalo, EAR-0958308H. David Sheets, Canisius College, EAR-0957672ABSTRACTDeep-time perspectives on climatic and oceanographic change are critical for understanding the long-term controls on environmental processes. This is particularly the case for the 'tipping points' that lead to episodes of climatic extremes, events that are often associated with episodes of profound biodiversity change. The spatial and temporal distribution of planktic organisms has proven to be critical to the reconstruction of climatic and oceanographic conditions during the Mesozoic and Cenozoic. The oldest geological period for which there is a diverse and abundant record of zooplankton is the Ordovician, and that record is provided by graptolites. PIs objectives are to analyze the changing biogeographic distribution patterns in graptolites from the mid-Ordovician into the lower Silurian using newly developing global databases, ecological modeling, and paleo-GIS techniques. Graptolite spatial distribution patterns should help understand the relationship between ancient ocean structure, climate, and zooplankton biogeography. Strong parallels have recently been drawn between the glacial-interglacial cycles of the Late Ordovician-Early Silurian and those of the late Cenozoic. Therefore, understanding the biogeographic and biodiversity changes associated with these climatic cycles will provide insights relevant to our understanding of biotic response to recent and modern climate change. Although this study will focus on the Ordovician and Early Silurian biosphere and its interconnections, the questions PIs propose to pursue - how range area and spatial patterning of faunas affect or respond to changing environmental history and species evolutionary dynamics - are fundamental questions that biologists and paleobiologists are pursuing across our traditional disciplinary boundaries of taxon, age, and conceptual approach.

合作研究：Graptolite生物地理学，古GIS和早期Zooplanktondaniel Goldman，Dayton University，Dayton University，EAR-0958372Charles Mitchell，Suny，Suny，Buffalo，EAR-0958308H。 David Sheets，Canisius College，EAR-0957672ABSTRACTDEEP时期关于气候和海洋学变化的观点对于理解对环境过程的长期控制至关重要。对于导致气候极端发作的“临界点”的情况尤其如此，这些事件通常与深刻的生物多样性变化有关。事实证明，木板生物的空间和时间分布对于中生代和新生代期间气候和海洋学条件的重建至关重要。奥陶纪的最古老的地质时期是浮游动物的多样化记录，该记录由Graptolites提供。 PIS目标是使用新开发的全球数据库，生态建模和古斯技术来分析从中型人到下志留纪的Graptolites中不断变化的生物地理分布模式。 Graptolite空间分布模式应有助于了解古老的海洋结构，气候和浮游生物地理之间的关系。最近在晚期奥陶纪 - 志留纪的冰川间冰期周期和已故的新生代的冰川冰上循环之间得到了强烈的相似之处。因此，了解与这些气候周期相关的生物地理和生物多样性变化将提供与我们对最近和现代气候变化的生物反应有关的见解。尽管这项研究将重点关注奥陶纪和早期的志留纪生物圈及其相互联系，但PIS提出的问题提出了如何 - 动物群的范围区域和空间模式如何影响或响应环境历史和物种进化动态的变化 - 是生物学家和古生物学家在我们传统的院子里的基本问题中，是在我们传统的院子里的基本问题中，以及分类范围的范围，以及分类范围，概念，概念，概念。