NSFGEO-NERC: Ancient life in moving fluids: elucidating the emergence of animal ecosystems

NSFGEO-NERC：流动液体中的古代生命：阐明动物生态系统的出现

• 批准号: NE/V010859/2
• 负责人: Imran Rahman
• 金额: $ 24.91万
• 依托单位: Natural History Museum
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FV010859%2F2
• 关键词: NSFGEO; NERC; Ancient; life; moving

The emergence of animal ecosystems during the late Ediacaran (~571-539 million years ago) was a pivotal episode in the evolutionary history of life. However, most of these Ediacaran organisms disappeared immediately before the Cambrian, in what may represent the first mass extinction of complex life. There are thus two key questions that will provide fundamental insights into the origins of modern ecosystems: 1) where do Ediacaran organisms fit in the tree of life? And, 2) what drove their extinction prior to the onset of the Cambrian? We will address these questions by combining new data collected during fieldwork with computer simulations performed on both individual organisms and whole communities. This project will improve knowledge of the early evolution of complex ecosystems, while at the same time pioneering the development of a rigorous new approach for examining how marine organisms evolved in response to moving fluids. We will work together with local school teachers to produce learning modules focused on 3-D modelling and fluid dynamics, suitable for communicating key evolutionary principals to students (16-18 years old) in the UK and USA.

在埃迪亚卡兰（Ediacaran）已故（约571-5.39亿年前）中，动物生态系统的出现是生命进化史上的关键事件。然而，这些埃迪亚亚族生物中的大多数在寒武纪之前就消失了，这可能代表了复杂生活的第一个巨大灭绝。因此，有两个关键问题将为现代生态系统的起源提供基本见解：1）Ediacaran生物在生命之树中适合何处？ 2）是什么在寒武纪发作之前驱动了他们的灭绝？我们将通过将现场工作期间收集的新数据与对单个生物体和整个社区进行的计算机模拟相结合来解决这些问题。该项目将提高人们对复杂生态系统的早期演变的了解，同时开发一种严格的新方法来研究海洋生物如何响应移动的流体而发展。我们将与当地学校教师合作，生产着针对3D建模和流体动力学的学习模块，适合在英国和美国向学生（16-18岁）传达关键进化校长。

项目成果

Supplementary Data from Raptorial appendages of the Cambrian apex predator

寒武纪顶级捕食者猛禽附肢的补充数据

• DOI: 10.6084/m9.figshare.23557701
• 发表时间: 2023
• 作者: Bicknell R

A new species of Nanhsiungchelys (Testudines: Cryptodira: Nanhsiungchelyidae) from the Upper Cretaceous of Nanxiong Basin, China, and the role of anterolateral processes on the carapace in drag reduction

中国南雄盆地上白垩统南雄龟一新种（龟甲目：隐龟亚科：南雄龟科）及其背甲前外侧突起的减阻作用

• DOI: 10.1101/2022.09.16.506868
• 发表时间: 2022
• 作者: Ke Y

The life and times of Pteridinium simplex

• DOI: 10.1017/pab.2022.2
• 发表时间: 2022-05-17
• 期刊: PALEOBIOLOGY
• 影响因子: 2.7
• 作者: Darroch, Simon A. F.;Gibson, Brandt M.;Laflamme, Marc
• 通讯作者: Laflamme, Marc

SUPPLEMENTAL MATERIALS from Reconstructing the feeding ecology of Cambrian sponge reefs: the case for active suspension feeding in Archaeocyatha

重建寒武纪海绵礁摄食生态的补充材料：古藻主动悬浮摄食的案例

• DOI: 10.6084/m9.figshare.24533974
• 发表时间: 2023
• 作者: Gibson B