COLLABORATIVE RESEARCH: Feeding and Diet at the Origin of Whales: Evolution, Development and Function

合作研究:鲸鱼起源的喂养和饮食:进化、发育和功能

基本信息

  • 批准号:
    0745683
  • 负责人:
  • 金额:
    $ 5.18万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2008
  • 资助国家:
    美国
  • 起止时间:
    2008-02-15 至 2011-08-31
  • 项目状态:
    已结题

项目摘要

Collaborative Research: Feeding and Diet at the Origin of Whales: Evolution, Function, and Development J. G. Thewissen and M. T. ClementzCetaceans (whales, porpoises, and dolphins) originated from land mammals (even-toed ungulates or Artiodactyla) about 50 million years ago. A remarkable series of fossils documents this transition and whale origins has become one of the most celebrated examples of macroevolutionary change in the fossil record. In spite of this, it is not known why whale ancestors took to the water. The objective of this project is to investigate whether diet and feeding played a critical role in the land-to-water, artiodactyl-to-whale transition.This project studies feeding and diet during the artiodactyl-to-whale transition using five approaches. First, the morphology of the molars gives clues to their use, are they used to shear, crush, or grind food. Those food processing methods correlate, in modern mammals, to specific diets, and can thus be used to infer diets in extinct animals. Second, the shape and design of skull and mandible of these early whales shows how the chewing muscles were attached, and clarifies hw the jaws were used in processing food, another feature that differs in animals that eat different food items. Third, dental wear facets show how teeth were used during chewing, and these wear facets are highly unusual in fossil whales, suggesting a very specialized diet. Fourth, since the molecules that make teeth are derived from an animal's diet, study of the chemistry of the teeth (stable isotopes) can answer questions about that diet. Lastly, a study of modern dolphin embryos will tell us how dolphin tooth germ form, and how they are derived from fossil whales. Together, using these five approaches to study feeding across the artiodactyls-whale transition will be used to answer a number of specific questions about the evolution of feeding and diet, such as whether a species is a suction feeder, whether fish dominated in its diet, or whether carnivore-like shearing occurred.Combined with data on the evolution of other organ systems in early whales, we will be able to study several questions: 1, Was diet an important reason why whales went into the water? 2, Was early cetacean evolution characterized by a period of experimentation with diets and feeding strategies or was a fish-diet acquired early in evolution?, 3, Does dental morphology and dental function change hand-in-hand across the artiodactyls-whale transition or are they temporally disjunct? These results integrate information at multiple organizational levels, from genes controlling development, to stable isotopes gauging life history parameters, and to muscle moments controlling jaw closing. This integrated approach is exciting because scientists with very different backgrounds all contribute pieces to the puzzle that allows for a thorough understanding of whale origins. The broader impact of the proposal is that whale origins is a topic of great interest to scientists, educators, and the public-at-large. This proposal includes an outreach program that makes its results accessible through the www. It also includes a detailed program that enriches the science curriculum of local, rural fourth and fifth graders in northeast Ohio. This proposal presents hands-on sessions that present whale research as a springboard to science and research and ties in directly to mandated curricular elements on geology, paleontology, anatomy, and embryology. After fine-tuning, these sessions will be adapted to be available for nationwide use.
合作研究:鲸类起源时的摄食与饮食:进化、功能与发展。Thewissen和M. T.克莱门茨鲸类(鲸鱼,鼠海豚和海豚)起源于大约5000万年前的陆地哺乳动物(偶蹄目)。 一系列引人注目的化石记录了这一转变,鲸鱼的起源已经成为化石记录中最著名的宏观进化变化的例子之一。 尽管如此,目前尚不清楚鲸鱼祖先为何要进入水中。 这个项目的目的是调查饮食和喂养是否在陆地到水,偶蹄动物到鲸鱼的过渡中发挥了关键作用。这个项目使用五种方法研究偶蹄动物到鲸鱼过渡期间的喂养和饮食。 首先,臼齿的形态提供了它们的用途的线索,它们是用来剪切,压碎或研磨食物。 在现代哺乳动物中,这些食物加工方法与特定的饮食有关,因此可以用来推断灭绝动物的饮食。 第二,这些早期鲸鱼的头骨和下颌骨的形状和设计显示了咀嚼肌是如何附着的,并澄清了颌骨是如何用于加工食物的,这是吃不同食物的动物的另一个不同特征。 第三,牙齿磨损面显示了牙齿在咀嚼过程中是如何使用的,这些磨损面在化石鲸鱼中非常不寻常,这表明它们的饮食非常特殊。 第四,由于制造牙齿的分子来自动物的饮食,因此对牙齿化学(稳定同位素)的研究可以回答有关饮食的问题。 最后,对现代海豚胚胎的研究将告诉我们海豚牙胚是如何形成的,以及它们是如何从鲸鱼化石中衍生出来的。总之,使用这五种方法来研究偶蹄目动物-鲸鱼过渡时期的摄食,将被用来回答一些关于摄食和饮食进化的具体问题,例如一个物种是否是吸食动物,鱼类是否在其饮食中占主导地位,或者是否发生了食肉动物般的剪切。结合早期鲸鱼其他器官系统进化的数据,我们将能够研究几个问题:1、饮食是鲸鱼下水的重要原因吗?2.早期鲸类动物进化的特征是一段时间的饮食和喂养策略的实验,还是在进化的早期获得了鱼类饮食?3.牙齿形态和牙齿功能在偶蹄目-鲸鱼过渡期是否同时发生变化,或者它们是暂时分离的?这些结果整合了多个组织层面的信息,从控制发育的基因,到测量生活史参数的稳定同位素,再到控制下颌闭合的肌肉力矩。 这种综合的方法是令人兴奋的,因为具有非常不同背景的科学家都为这个谜题做出了贡献,从而可以彻底了解鲸鱼的起源。 该提案的更广泛影响是,鲸鱼起源是科学家、教育工作者和广大公众非常感兴趣的话题。 该提案包括一个推广方案,使其结果可以通过www。 它还包括一个详细的计划,丰富了俄亥俄州东北部地方、农村四年级和五年级学生的科学课程。 该提案提出了实践会议,目前鲸鱼研究作为科学和研究的跳板,并直接与地质学,古生物学,解剖学和胚胎学的强制性课程元素联系在一起。 经过微调后,这些课程将在全国范围内使用。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Mark Clementz其他文献

Mark Clementz的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Mark Clementz', 18)}}的其他基金

Collaborative Research: Rapid Climate Change During the Miocene Climate Optimum: A Proxy-Model Comparison
合作研究:中新世气候最佳时期的快速气候变化:代理模型比较
  • 批准号:
    2002543
  • 财政年份:
    2020
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Standard Grant
Collaborative Research: Mechanobiology of a Resilient Bone Extracellular Matrix: A Multiscale Perspective on How Bats Achieve Exceptional Mechanical Properties in their Wing Bones
合作研究:弹性骨细胞外基质的力学生物学:蝙蝠如何在其翼骨中实现卓越机械性能的多尺度视角
  • 批准号:
    1537858
  • 财政年份:
    2015
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Standard Grant
CAREER:Ecological Diversification of Marine Mammals (Orders Cetacea and Sirenia) through Cenozoic Climate Change: Evidence from Geochemical Analysis of Fossil Material
职业:新生代气候变化导致海洋哺乳动物(鲸目和海牛目)的生态多样化:来自化石材料地球化学分析的证据
  • 批准号:
    0847413
  • 财政年份:
    2009
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Continuing Grant

相似国自然基金

Research on Quantum Field Theory without a Lagrangian Description
  • 批准号:
    24ZR1403900
  • 批准年份:
    2024
  • 资助金额:
    0.0 万元
  • 项目类别:
    省市级项目
Cell Research
  • 批准号:
    31224802
  • 批准年份:
    2012
  • 资助金额:
    24.0 万元
  • 项目类别:
    专项基金项目
Cell Research
  • 批准号:
    31024804
  • 批准年份:
    2010
  • 资助金额:
    24.0 万元
  • 项目类别:
    专项基金项目
Cell Research (细胞研究)
  • 批准号:
    30824808
  • 批准年份:
    2008
  • 资助金额:
    24.0 万元
  • 项目类别:
    专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
  • 批准号:
    10774081
  • 批准年份:
    2007
  • 资助金额:
    45.0 万元
  • 项目类别:
    面上项目

相似海外基金

Collaborative Research: Visual adaptations in hydrothermal vent shrimp and the role in feeding modalities and habitat selection
合作研究:热液喷口虾的视觉适应及其在摄食方式和栖息地选择中的作用
  • 批准号:
    2154168
  • 财政年份:
    2022
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Continuing Grant
NRI/Collaborative Research: Robot-Assisted Feeding: Towards Efficient, Safe, and Personalized Caregiving Robots
NRI/合作研究:机器人辅助喂养:迈向高效、安全和个性化的护理机器人
  • 批准号:
    2132847
  • 财政年份:
    2022
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Standard Grant
NRI/Collaborative Research: Robot-Assisted Feeding: Towards Efficient, Safe, and Personalized Caregiving Robots
NRI/合作研究:机器人辅助喂养:迈向高效、安全和个性化的护理机器人
  • 批准号:
    2132846
  • 财政年份:
    2022
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Standard Grant
Collaborative Research: Visual adaptations in hydrothermal vent shrimp and the role in feeding modalities and habitat selection
合作研究:热液喷口虾的视觉适应及其在摄食方式和栖息地选择中的作用
  • 批准号:
    2154124
  • 财政年份:
    2022
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Continuing Grant
Collaborative Research: Visual adaptations in hydrothermal vent shrimp and the role in feeding modalities and habitat selection
合作研究:热液喷口虾的视觉适应及其在摄食方式和栖息地选择中的作用
  • 批准号:
    2154144
  • 财政年份:
    2022
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Continuing Grant
Collaborative Research: Visual adaptations in hydrothermal vent shrimp and the role in feeding modalities and habitat selection
合作研究:热液喷口虾的视觉适应及其在摄食方式和栖息地选择中的作用
  • 批准号:
    2154146
  • 财政年份:
    2022
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Continuing Grant
NRI/Collaborative Research: Robot-Assisted Feeding: Towards Efficient, Safe, and Personalized Caregiving Robots
NRI/合作研究:机器人辅助喂养:迈向高效、安全和个性化的护理机器人
  • 批准号:
    2132848
  • 财政年份:
    2022
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Standard Grant
RAPID: Collaborative Research: COVID-19, human milk and infant feeding
RAPID:合作研究:COVID-19、母乳和婴儿喂养
  • 批准号:
    2031715
  • 财政年份:
    2020
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Standard Grant
RAPID: Collaborative Research: COVID-19, human milk and infant feeding
RAPID:合作研究:COVID-19、母乳和婴儿喂养
  • 批准号:
    2031761
  • 财政年份:
    2020
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Standard Grant
Collaborative Research: Feeding Ontogeny at the Interface of Behavior and Morphology
合作研究:行为与形态学界面的喂养个体发育
  • 批准号:
    1945771
  • 财政年份:
    2020
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Standard Grant
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了