Collaborative Research: Ecomorphological diversification and the origin of phenotypic disparity in crocodile-line archosaurs

合作研究：鳄鱼系祖龙的生态形态多样化和表型差异的起源

• 批准号: 1754596
• 负责人: Alan Turner
• 金额: $ 41.84万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-05-01 至 2023-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1754596&HistoricalAwards=false
• 关键词: Collaborative; Research; Ecomorphological; diversification; origin

Species morphology typically evolves to meet the demands of the environment. In the fossil record, and among existing species, large morphological changes are frequently associated with changes in habitat or ecology. However, there remains little understanding of the general rules that govern morphological change associated with ecological change. This project will use skeletal and soft-tissue anatomy as well as detailed 3D shape data to study closely-related, transitional species to investigate the evolution of morphology and ecology in the long-lived and fossil-rich group Crocodylomorpha (crocodiles, alligators, and their extinct relatives). The project will exploit the group's multiple natural experimentation with extreme environments to develop detailed conceptual models for major ecological and morphological transitions that will inform on the rules underlying morphological change. These models will then serve as predictors for how and why transformations occur, which can be tested in other groups with similar narratives. Important examples include the initial emergence of four-limbed vertebrates onto land, how birds took the sky, and the first steps in the reign of mammals. The innovative technologies, techniques, and widely applicable conclusions from this research will promote interdisciplinary work among paleontologists, biomechanists, ecologists, and evolutionary biologists. The researchers will make their data, digital models, analytical tools, and essential supplementary files available for wide access. Furthermore, this project will support associated PhD and Postdoctoral research as well as foster access to higher education for substantially underrepresented groups.This project will use integrative approaches to reveal the complexities of ecomorphological changes across major evolutionary transitions. The study will examine how novel environments put new, often extreme demands on historical phenotypes by addressing how large-scale habitat and ecological transitions drive evolution across multiple integrated anatomical systems. The research will test hypotheses about phenotypic integration on an evolutionary scale to determine whether developmental rates, sequence heterochrony, and/or patterns of modularity determine if consistently applied rules of ecomorphological diversification underlie adaptive radiations. The outcome will be an unprecedented database of crocodylomorph cranial and post-cranial diversity that includes contrast-enhanced neural and skeletal tissues, raw and partitioned CT stacks, and 3D digital models as well as comparative, intra-clade conceptual models for how predatory vertebrates shift to lives on the shoreline, within the sea, and toward herbivory. The microCT and cutting-edge, diffusible iodine-based contrast-enhanced computed tomography imaging, in addition to a robust morphological phylogeny for analysis of evolutionary trends using the latest phylogenetic methods, represent potentially transformative methodologies developed by this research group.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

物种形态通常会发展以满足环境的需求。在化石记录中以及现有物种中，巨大的形态变化经常与栖息地或生态学的变化有关。但是，对控制与生态变化相关的形态变化的一般规则的一般规则几乎没有理解。该项目将使用骨骼和软组织解剖结构以及详细的3D形状数据来研究密切相关的过渡物种，以研究长期且富含化石的crococodylomorpha（鳄鱼，鳄鱼，远小虎和灭绝的亲戚）中形态和生态学的演变）。该项目将利用该小组的多个自然实验，并为极端环境开发详细的概念模型，以用于主要的生态和形态过渡，这些模型将为形态学变化的基本规则提供信息。然后，这些模型将作为如何以及为什么发生转化的预测指标，可以在其他具有相似叙述的群体中进行测试。重要的例子包括最初出现四束脊椎动物到陆地上，鸟类如何占据天空以及哺乳动物统治时期的第一步。这项研究的创新技术，技术和广泛适用的结论将促进古生物学家，生物力学主义者，生态学家和进化生物学家之间的跨学科工作。 研究人员将制作其数据，数字模型，分析工具和基本补充文件，可用于广泛访问。此外，该项目将支持相关的博士学位和博士后研究，并为基本代表性不足的群体促进获得高等教育的机会。该项目将采用综合方法来揭示主要进化过渡过程中生态形态变化的复杂性。该研究将通过解决多个综合解剖系统的大规模栖息地和生态过渡如何推动发展的大规模栖息地和生态过渡如何推动进化的大规模栖息地和生态转变，从而研究新的环境如何对历史表型提出了新的，极端的需求。该研究将在进化量表上检验有关表型整合的假设，以确定发展速率，序列异缘和/或模块化模式是否确定生态形态多样化的规则是否始终如一地基于适应性辐射。 The outcome will be an unprecedented database of crocodylomorph cranial and post-cranial diversity that includes contrast-enhanced neural and skeletal tissues, raw and partitioned CT stacks, and 3D digital models as well as comparative, intra-clade conceptual models for how predatory vertebrates shift to lives on the shoreline, within the sea, and toward herbivory. The microCT and cutting-edge, diffusible iodine-based contrast-enhanced computed tomography imaging, in addition to a robust morphological phylogeny for analysis of evolutionary trends using the latest phylogenetic methods, represent potentially transformative methodologies developed by this research group.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review 标准。

项目成果

A unique predator in a unique ecosystem: modelling the apex predator within a Late Cretaceous crocodyliform‐dominated fauna from Brazil

独特生态系统中的独特捕食者：对白垩纪晚期巴西鳄形动物群中的顶级捕食者进行建模

• DOI: 10.1111/joa.13192
• 发表时间: 2020
• 期刊: Journal of Anatomy
• 影响因子: 2.4
• 作者: Montefeltro, Felipe C.;Lautenschlager, Stephan;Godoy, Pedro L.;Ferreira, Gabriel S.;Butler, Richard J.
• 通讯作者: Butler, Richard J.

Crocodylomorph cranial shape evolution and its relationship with body size and ecology

• DOI: 10.1111/jeb.13540
• 发表时间: 2019-09-30
• 期刊: JOURNAL OF EVOLUTIONARY BIOLOGY
• 影响因子: 2.1
• 作者: Godoy, Pedro L.

A synthetic approach for assessing the interplay of form and function in the crocodyliform snout

• DOI: 10.1093/zoolinnean/zlz081
• 发表时间: 2019-01-01
• 期刊: Zool. J. Linn. Soc
• 作者: Drumheller, S. K.;Wilberg, E. W.
• 通讯作者: Wilberg, E. W.

Inner ear sensory system changes as extinct crocodylomorphs transitioned from land to water

• DOI: 10.1073/pnas.2002146117
• 发表时间: 2020-05-12
• 期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• 影响因子: 11.1
• 作者: Schwab, Julia A.;Young, Mark T.;Brusatte, Stephen L.
• 通讯作者: Brusatte, Stephen L.

A new early diverging thalattosuchian (Crocodylomorpha) from the Early Jurassic (Pliensbachian) of Dorset, U.K. and implications for the origin and evolution of the group

来自英国多塞特郡早侏罗世（普林斯巴赫阶）的一种新的早期分化海鳄目（鳄形目）及其对该类群起源和进化的影响

• DOI: 10.1080/02724634.2022.2161909
• 发表时间: 2022
• 期刊: Journal of Vertebrate Paleontology
• 影响因子: 1.4
• 作者: Wilberg, Eric W.;Godoy, Pedro L.;Griffiths, Elizabeth F.;Turner, Alan H.;Benson, Roger B.
• 通讯作者: Benson, Roger B.