DISSERTATION RESEARCH: Five-dimensional Analysis Of Alligator and Bird Encephalization: Integrating Changes in Brain Shape Along Developmental and Evolutionary Timelines
论文研究:鳄鱼和鸟类脑化的五维分析:沿着发育和进化时间线整合大脑形状的变化
基本信息
- 批准号:1406849
- 负责人:
- 金额:$ 2.01万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2014
- 资助国家:美国
- 起止时间:2014-06-01 至 2016-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Taking to the air afforded the ancestors of modern birds access to a previously unheralded range of environments, a fact that underlies their remarkable diversity (10,000 known species). A significant part of this success is thought to have stemmed from the independent evolution of a mammal-like, hyper-inflated brain. Such a brain structure has long been considered necessary for coordinating the many aspects of powered flight, but this hypothesis that has not yet been tested. This study examines evolutionary changes in avian brain development using a wide range of techniques, including high-resolution computed tomography (CT) imaging, 3-D visualization of whole brains, and statistical shape analyses. By digitally sampling developmental series of brains from birds and other vertebrates, this project will test for coordinated shape changes in brain regions that share key functional pathways. This data will be used to determine whether evolutionary shifts in brain development have driven important structural evolution in adult avian brains. Correlation with the early evolution of flight behavior will also be investigated.Data generated for this study will be archived on online repositories and made available to scientific and public spheres. For educational purposes, brain models will be 3-D printed and implemented in museum and school programs. The broader developmental patterns identified here will also be synthesized into the larger findings of the national "BRAIN" initiative, which seeks to greatly enhance the understanding of the complex, inner workings of the brain across all species and through evolutionary history.
现代鸟类的祖先们飞上了天空,进入了一个前所未有的环境范围,这一事实奠定了它们惊人的多样性(已知的物种有1万种)。人们认为,这种成功在很大程度上源于一种类似哺乳动物、高度膨胀的大脑的独立进化。长期以来,这种大脑结构一直被认为是协调动力飞行的许多方面所必需的,但这种假设尚未得到验证。本研究使用广泛的技术,包括高分辨率计算机断层扫描(CT)成像、全脑三维可视化和统计形状分析,研究了鸟类大脑发育的进化变化。通过对鸟类和其他脊椎动物的大脑发育序列进行数字化采样,该项目将测试共享关键功能通路的大脑区域的协调形状变化。这些数据将用于确定大脑发育的进化转变是否驱动了成年鸟类大脑的重要结构进化。与飞行行为早期进化的关系也将被研究。为这项研究产生的数据将存档在在线存储库中,并提供给科学和公共领域。出于教育目的,大脑模型将被3d打印,并在博物馆和学校项目中实施。这里确定的更广泛的发育模式也将被综合到国家“大脑”计划的更大发现中,该计划旨在大大提高对所有物种和进化史中复杂的大脑内部运作的理解。
项目成果
期刊论文数量(0)
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Mark Norell其他文献
'Modern' feathers on a non-avian dinosaur
非鸟类恐龙身上的“现代”羽毛
- DOI:
10.1038/416036a - 发表时间:
2002-03-07 - 期刊:
- 影响因子:48.500
- 作者:
Mark Norell;Qiang Ji;Keqin Gao;Chongxi Yuan;Yibin Zhao;Lixia Wang - 通讯作者:
Lixia Wang
The bony labyrinth of Platecarpus (Squamata: Mosasauria) and aquatic adaptations in squamate reptiles
板甲类(有鳞目:沧龙类)的骨迷路和有鳞爬行动物的水生适应
- DOI:
10.1016/j.palwor.2018.12.001 - 发表时间:
2019-12 - 期刊:
- 影响因子:1.7
- 作者:
Hongyu Yi;Mark Norell - 通讯作者:
Mark Norell
Mark Norell的其他文献
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{{ truncateString('Mark Norell', 18)}}的其他基金
DISSERTATION RESEARCH: Comparative ontogeny: dinosaur growth, development, and intraspecific variation
论文研究:比较个体发育:恐龙生长、发育和种内变异
- 批准号:
1601315 - 财政年份:2016
- 资助金额:
$ 2.01万 - 项目类别:
Standard Grant
Collaborative Research: Unraveling the Deep History of Avian Neurological Complexity: Implications for the Origins of Flight and Organization of the Modern Avian Brain
合作研究:揭开鸟类神经复杂性的深层历史:对飞行起源和现代鸟类大脑组织的影响
- 批准号:
1457295 - 财政年份:2015
- 资助金额:
$ 2.01万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: New Insights on the Evolution of Flight in Dinosaurs Using CT and PET Technology
论文研究:利用 CT 和 PET 技术对恐龙飞行进化的新见解
- 批准号:
1311790 - 财政年份:2013
- 资助金额:
$ 2.01万 - 项目类别:
Standard Grant
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论文研究:利用稳定同位素和牙齿微磨损重建食草恐龙的饮食变化
- 批准号:
1110579 - 财政年份:2011
- 资助金额:
$ 2.01万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: The phylogeny of basal coelurosaurian theropods and large-scale patterns of morphological evolution during the dinosaur-bird transition
论文研究:基础虚骨龙兽脚亚目恐龙的系统发育和恐龙-鸟类过渡期间形态进化的大规模模式
- 批准号:
1110357 - 财政年份:2011
- 资助金额:
$ 2.01万 - 项目类别:
Standard Grant
COLLABORATIVE RESEARCH: EVOLUTION OF THE HADROSAURID DENTITION--HISTOLOGICAL AND BIOMECHANICAL INSIGHTS INTO ADVANCED REPTILIAN HERBIVORY
合作研究:鸭嘴龙牙齿的进化——高级爬行动物食草动物的组织学和生物力学见解
- 批准号:
0958972 - 财政年份:2010
- 资助金额:
$ 2.01万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Phylogeny, Ontogeny, and Endocranial Evolution of Oviraptorosauria (Theropoda: Coelurosauria)
论文研究:偷蛋龙目(兽脚亚目:虚骨龙)的系统发育、个体发育和颅内进化
- 批准号:
0909970 - 财政年份:2009
- 资助金额:
$ 2.01万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Dromaeosaurid Phylogeny, Deinonychosaurian Monophyly, and the Sister Group to Birds
论文研究:驰龙科系统发育、恐爪龙类单系和鸟类姐妹群
- 批准号:
0608003 - 财政年份:2006
- 资助金额:
$ 2.01万 - 项目类别:
Standard Grant
ATOL: Collaborative Research: Archosaur Phylogeny - A Total Evidence Approach at Fine Taxonomic Levels
ATOL:合作研究:祖龙系统发育 - 精细分类水平的全面证据方法
- 批准号:
0228693 - 财政年份:2002
- 资助金额:
$ 2.01万 - 项目类别:
Continuing Grant
Collaborative Research: Life History Strategies, Growth Rates, and Microstructural Character Evolution Across the Coelurosaurian/Avialan Transition
合作研究:虚骨龙/阿维亚兰过渡过程中的生活史策略、增长率和微观结构特征进化
- 批准号:
0207664 - 财政年份:2002
- 资助金额:
$ 2.01万 - 项目类别:
Standard Grant
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