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?
基本信息
- 批准号:1231790
- 负责人:
- 金额:$ 2.51万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-09-01 至 2014-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Geladas (Theropithecus gelada), like humans, live in unusually large social groups with numbers that exceed 1000 individuals. Unlike humans, however, the dominant males in gelada society do not recognize other males around them - even males that they encounter on a daily basis. This creates a socially and evolutionarily (fitness-related) significant set of limitations for males competing for mates; mainly, how to assess rivals prior to engaging in costly forms of competition. Species that do not use individual recognition for assessment typically use short-hand proxies; i.e., particular physical features or other characteristics ("signals") which are useful for ascertaining the competitive abilities of potential rivals. Although such signals in primates are rare, the unusually large groups found in gelada society may have favored their evolution through a form of natural selection referred to as "sexual selection."Research by doctoral student Marcela Benitez (University of Michigan), under the supervision of Dr. Jacinta Beehner, will examine one such putative signal for male geladas living in the Simien Mountains National Park, Ethiopia - a loud vocalization used in male displays (i.e., "loud calls"). Establishing whether loud calls are evolved signals requires establishing the following: (1) that variation exists in loud calls across males of different quality, (2) that males can use these calls to distinguish between high and low quality males, (3) that males then base challenges on these calls, and (4) that males with high quality calls have higher fitness (reproductive success). To address these predictions, this interdisciplinary research will combine acoustic, experimental, hormonal, and observational analyses on known individuals that have been followed continuously for the past six years. As such, the research represents one of the most comprehensive studies of what are theoretically termed "sexually-selected signals" (i.e., those evolved through male-male reproductive competition) with potential fitness consequences in a primate.This research is part of a long-term project that is committed to increasing conservation awareness and scientific education, both in the U.S. and in Ethiopia, through collaborative research and educational presentations to local people and eco-tourists in Ethiopia. The doctoral student Co-PI, a member of an underrepresented group in science, will incorporate the research into her bilingual website for childhood educational outreach, promoting engagement with the sciences by US children.
狒狒(Theropithecus gelada)和人类一样,生活在非常大的社会群体中,数量超过1000只。然而,与人类不同的是,狒狒社会中占主导地位的雄性狒狒不认识周围的其他雄性狒狒——即使是它们每天都会遇到的雄性狒狒。这在社会和进化上(与健康相关)为雄性竞争配偶创造了一系列重要的限制;主要是如何在参与代价高昂的竞争之前评估对手。不使用个体识别进行评估的物种通常使用速记代理;即,特定的身体特征或其他特征(“信号”),这些特征对确定潜在对手的竞争能力很有用。虽然这种信号在灵长类动物中很少见,但在狒狒社会中发现的异常大的群体可能有利于它们通过一种被称为“性选择”的自然选择形式的进化。密歇根大学的博士生Marcela Benitez在Jacinta Beehner博士的指导下进行了一项研究,将研究生活在埃塞俄比亚塞米恩山脉国家公园的雄性狒狒的一种可能的信号——雄性狒狒在展示时发出的大声声音(即“大声呼叫”)。要确定响亮的叫声是否是进化的信号,需要确定以下内容:(1)不同质量的雄性在响亮的叫声中存在差异,(2)雄性可以用这些叫声来区分高质量和低质量的雄性,(3)雄性然后根据这些叫声进行挑战,(4)高质量叫声的雄性具有更高的适应性(繁殖成功)。为了解决这些预测,这项跨学科的研究将结合声学、实验、激素和对已知个体的观察分析,这些分析已经连续跟踪了六年。因此,这项研究代表了理论上被称为“性选择信号”的最全面的研究之一(即那些通过雄性雄性生殖竞争进化而来的信号),这些信号在灵长类动物中具有潜在的适应性后果。这项研究是一项长期项目的一部分,该项目致力于通过合作研究和对埃塞俄比亚当地居民和生态游客的教育介绍,提高美国和埃塞俄比亚的保护意识和科学教育。作为一个在科学界未被充分代表的群体的成员,这位博士生的共同负责人将把这项研究纳入她的儿童教育推广双语网站,促进美国儿童与科学的接触。
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)
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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:
$ 2.51万 - 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:
$ 2.51万 - 项目类别:
Standard Grant
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
- 批准号:
2041542 - 财政年份:2021
- 资助金额:
$ 2.51万 - 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:
$ 2.51万 - 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:
$ 2.51万 - 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:
$ 2.51万 - 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:
$ 2.51万 - 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:
$ 2.51万 - 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:
$ 2.51万 - 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 Cynocephalus Kindae)进行多学科、实地研究
- 批准号:
1029403 - 财政年份:2010
- 资助金额:
$ 2.51万 - 项目类别:
Standard Grant
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