Collaborative Research: Mechanisms of Behavioral Innovation in Brood Parasitic Birds

合作研究:巢寄生鸟行为创新机制

基本信息

  • 批准号:
    1456524
  • 负责人:
  • 金额:
    $ 33万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2015
  • 资助国家:
    美国
  • 起止时间:
    2015-06-01 至 2018-01-31
  • 项目状态:
    已结题

项目摘要

Songbirds are well-known for their complex vocalizations that, much like language in humans, are typically learned from their parents. But how do young that naturally lack contact with parents recognize members of their own species? Here, the researchers investigate the genomic, neurobiological and behavioral mechanisms of species recognition employed by avian brood parasites, birds whose eggs are laid into nests of strangers and whose chicks are raised by the foster species. By identifying the password--a species-specific vocalization that attracts and initiates the neural mechanisms by which young brood parasites identify individuals of their own species--the researchers will be able to understand how young that naturally lack contact with parents recognize members of their own species. This work will contribute broadly to scientific progress in the fields of learning and memory, behavioral plasticity and behavioral evolution. This research program involves training of students and young scientists, including a postdoctoral fellow and a diverse group of students, including many underrepresented undergraduate and graduate students in integrative behavioral, neurobiological, and genomics research techniques. The participants will deliver public seminars and exhibits at Sylvan Heights Bird Park in North Carolina and at several non-profit organizations in New York City.The suite of behavioral innovations underlying social parasitism, including avian brood parasitism, must include mechanisms to recognize conspecifics without prior exposure during early development. This project will tap into the developmental knowledge already gathered from parental songbirds, including the zebra finch model system, and focus the ontogenetic study on a closely-related, but obligate parasitic finch, the pin-tailed whydah. The aim is to test the general hypothesis that differences in neural architecture or processing between parasitic and parental birds reflect evolutionary tinkering, whereby novel traits arise by modification of existing networks and structures. Through experimentally manipulated exposure of juvenile parasites to songs, the prediction will be tested that conspecific recognition relies on hearing a salient species-specific character, termed the password. Detailed quantitative patterns of transcriptional change following password exposure, and throughout developmental landmarks, will be collected to identify neurogenomic signatures associated with the timing and induction of conspecific recognition and to more broadly define the molecular basis of experience-dependent or developmentally driven neuroplasticity. Critical acoustic and behavioral components of these data will be collected during a newly developed field course in Puerto Rico. Acoustic and video data will be made freely available through DataOne, a public data repository, and genomic data will be deposited into the National Institutes of Health's NCBI short read archive.
鸣禽以其复杂的发音而闻名,就像人类的语言一样,通常是从父母那里学习的。但是,天生缺乏与父母接触的年轻人如何识别自己种族的成员呢?在这里,研究人员调查了鸟类孵化寄生虫使用的物种识别的基因组、神经生物学和行为机制,这些寄生虫将蛋下到陌生人的巢中,其幼鸟是由寄养物种饲养的。通过识别密码--一种特定物种的发声,吸引并启动幼虫识别自己物种个体的神经机制--研究人员将能够理解天生缺乏与父母接触的幼虫是如何识别自己物种的成员的。这项工作将对学习和记忆、行为可塑性和行为进化领域的科学进步做出广泛贡献。这一研究计划涉及对学生和年轻科学家的培训,其中包括一名博士后研究员和一群不同的学生,其中包括许多未被充分代表的本科生和研究生,他们掌握综合行为、神经生物学和基因组学研究技术。参与者将在北卡罗来纳州的西尔万高地鸟类公园和纽约市的几个非营利性组织举行公开研讨会和展览。一套潜在的社会寄生行为创新,包括鸟类幼虫寄生,必须包括在早期发育过程中识别同种生物的机制,而不需要事先暴露。这个项目将利用已经从父母鸣禽那里收集到的发育知识,包括斑马雀模型系统,并将个体遗传学研究的重点放在一种密切相关但专性寄生的鸣禽上,即小尾金丝雀。其目的是检验一个普遍的假设,即寄生鸟和亲鸟在神经结构或处理方面的差异反映了进化的修修补补,即通过修改现有的网络和结构产生新的特征。通过将幼年寄生虫暴露在歌曲中的实验操作,这一预测将得到验证,即同种识别依赖于听到一个显著的物种特定字符,称为密码。将收集密码暴露后转录变化的详细定量模式,以及整个发育里程碑,以确定与同种识别的时机和诱导相关的神经基因组特征,并更广泛地定义经验依赖或发育驱动的神经可塑性的分子基础。这些数据的关键声学和行为成分将在波多黎各新开发的实地课程期间收集。声音和视频数据将通过公共数据存储库DataOne免费提供,基因组数据将存储到美国国立卫生研究院的NCBI短读档案中。

项目成果

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Mark Hauber其他文献

Mark Hauber的其他文献

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

Collaborative Research: Referential alarm calling as a window into the mechanisms and evolution of a complex cognitive phenotype
合作研究:参考警报呼叫作为了解复杂认知表型的机制和演化的窗口
  • 批准号:
    2417581
  • 财政年份:
    2024
  • 资助金额:
    $ 33万
  • 项目类别:
    Continuing Grant
Collaborative Research: Referential alarm calling as a window into the mechanisms and evolution of a complex cognitive phenotype
合作研究:参考警报呼叫作为了解复杂认知表型的机制和演化的窗口
  • 批准号:
    1953226
  • 财政年份:
    2020
  • 资助金额:
    $ 33万
  • 项目类别:
    Continuing Grant
I-Corps: Non-invasive DNA testing of chromosomal markers
I-Corps:染色体标记的非侵入性 DNA 检测
  • 批准号:
    1935387
  • 财政年份:
    2019
  • 资助金额:
    $ 33万
  • 项目类别:
    Standard Grant
Collaborative Research: Mechanisms of Behavioral Innovation in Brood Parasitic Birds
合作研究:巢寄生鸟行为创新机制
  • 批准号:
    1818730
  • 财政年份:
    2017
  • 资助金额:
    $ 33万
  • 项目类别:
    Standard Grant

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