Doctoral Dissertation Research: Examining the evolutionary significance of chest patch coloration in a wild primate population

博士论文研究:研究野生灵长类动物胸斑颜色的进化意义

基本信息

项目摘要

In animal species, a variety of social and physiological cues are thought to convey information about an individual’s health, status, rank, or reproductive fitness to other individuals. Many primate species, for example, rely on social cues about status and rank of other group members to gauge competitiveness and mate quality, which requires the ability to keep track of multiple individuals. However, there may be an upper limit to how many individuals can be recognized. In this doctoral dissertation project, the investigator studies a primate species with very large group sizes to examine whether male chest patch coloration may replace social knowledge of rank as a signal of male competitive ability. The project directly engages with evolutionary theories about trade-offs between social and morphological indicators of reproductive fitness, specifically advancing knowledge about the social and ecological environments that favor the evolution of costly visual signals (like chest coloration) relative to social knowledge as a means to appraise fighting ability of competitors. While conducting the proposed research, the investigator continues her involvement in local public science engagement to help foster an interest in science among young students of all backgrounds, improve science literacy in her local community, and promote open science communication to build trust between researchers and the public. The colored patch on the chest of male geladas has been hypothesized to be the product of sexual selection -- a quality signal to ward off would-be rival males. This research empirically tests the relationship between the intensity of male chest color, physiology, and reproductive fitness in a wild population of geladas. The investigators first examine what might cause red chests at a mechanistic level by analyzing color-gauged photographs taken from individually-known adult males to determine if male redness is associated with testosterone levels and/or gene expression related to vascularization and blood flow in the local tissue. At a functional level, the investigators then use demographic data paired with individual male redness to determine whether redder chests are associated with a longer reproductive tenure for those males, and whether this contributes to more offspring in the long-term, as determined by paternity testing of all infants.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.
在动物物种中,各种各样的社会和生理线索被认为是向其他个体传达有关个体健康,地位,等级或生殖健康的信息。例如,许多灵长类物种依靠关于其他群体成员地位和等级的社会线索来衡量竞争力和配偶质量,这需要跟踪多个个体的能力。然而,可以识别多少个体可能存在上限。在这个博士论文项目中,研究人员研究了一个灵长类动物物种与非常大的群体规模,以检查是否男性胸部补丁着色可能取代社会知识的排名作为男性竞争能力的信号。该项目直接与进化理论有关生殖健康的社会和形态指标之间的权衡,特别是推进有关社会和生态环境的知识,这些环境有利于昂贵的视觉信号(如胸部颜色)相对于社会知识的进化,作为评估竞争对手战斗能力的手段。在进行拟议的研究时,研究人员继续参与当地的公共科学活动,以帮助培养各种背景的年轻学生对科学的兴趣,提高当地社区的科学素养,并促进开放的科学交流,以建立研究人员和公众之间的信任。雄性狒狒胸部的彩色斑块被假设为性选择的产物--一种抵御潜在竞争对手的质量信号。本研究以经验性的方式,在野生狮尾狒狒族群中,检验雄性胸部颜色、生理与生殖适合度之间的关系。研究人员首先通过分析从个体已知的成年男性拍摄的彩色照片,以确定男性发红是否与睾酮水平和/或与局部组织中血管化和血流相关的基因表达有关,从而在机械水平上检查可能导致红胸的原因。在功能层面上,研究人员随后使用人口统计数据与个体男性的红色配对,以确定红色胸部是否与这些男性更长的生殖期有关,以及这是否有助于长期产生更多的后代,该奖项反映了NSF的法定使命,并被认为值得通过使用基金会的知识产权进行评估来支持。优点和更广泛的影响审查标准。

项目成果

期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Assessing male gelada chest patches: color measurement and physiological mechanisms
  • DOI:
    10.1007/s42991-021-00211-5
  • 发表时间:
    2022-02-22
  • 期刊:
  • 影响因子:
    1.6
  • 作者:
    DeLacey, Patricia M.;Perlman, Rachel F.;Bergman, Thore J.
  • 通讯作者:
    Bergman, Thore J.
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Jacinta Beehner其他文献

Dorothy Cheney (1950–2018)
  • DOI:
    10.1007/s10764-019-00077-y
  • 发表时间:
    2019-02-14
  • 期刊:
  • 影响因子:
    1.800
  • 作者:
    Jacinta Beehner;Thore Bergman;Julia Fischer;Joan B. Silk
  • 通讯作者:
    Joan B. Silk

Jacinta Beehner的其他文献

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{{ truncateString('Jacinta Beehner', 18)}}的其他基金

Assessing adaptive and maladaptive stress responses in wild Capuchin monkeys
评估野生卷尾猴的适应性和适应不良应激反应
  • 批准号:
    2341358
  • 财政年份:
    2024
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Perception of water insecurity and epigenetic signatures of stress
博士论文研究:对水不安全的感知和压力的表观遗传特征
  • 批准号:
    2217691
  • 财政年份:
    2022
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Early-life adversity: Maternal effects in a wild primate
博士论文研究:早年逆境:野生灵长类动物的母体影响
  • 批准号:
    1945701
  • 财政年份:
    2020
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Examining causes and consequences of variation in male reproductive success in wild primates
博士论文研究:检查野生灵长类动物雄性繁殖成功率变异的原因和后果
  • 批准号:
    2018489
  • 财政年份:
    2020
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Research: Signatures of past selection for identification of pathogen-related loci
博士论文研究:过去选择的特征用于鉴定病原体相关位点
  • 批准号:
    1824839
  • 财政年份:
    2018
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Standard Grant
LTREB: Social dynamics and fitness in a complex primate society
LTREB:复杂灵长类社会中的社会动态和适应性
  • 批准号:
    1255974
  • 财政年份:
    2013
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Continuing Grant
Doctoral Dissertation Research: A test of the vocal grooming hypothesis in the gelada
博士论文研究:狒狒声音修饰假说的检验
  • 批准号:
    1340911
  • 财政年份:
    2013
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Improvement: Are gelada loud calls "sexually-selected signals"?
博士论文改进:狒狒大声叫是“性选择信号”吗?
  • 批准号:
    1231790
  • 财政年份:
    2012
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Standard Grant
Doctoral Dissertation Improvement: The Reproductive Trajectories of Geladas (Theropithecus gelada)
博士论文改进:狒狒(Theropithecus gelada)的繁殖轨迹
  • 批准号:
    0962160
  • 财政年份:
    2010
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Standard Grant
Collaborative Research: A Multidisciplinary, Field-Based Study of the Little-Known Kinda Baboon (Papio Cynocephalus Kindae)
合作研究:对鲜为人知的狒狒(Papio Cynoc​​ephalus Kindae)进行多学科、实地研究
  • 批准号:
    1029403
  • 财政年份:
    2010
  • 资助金额:
    $ 2.52万
  • 项目类别:
    Standard Grant

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