Dissertation Research: The Roles of Endogenous and ExogenousFactors in Settlement Patterns of Juvenile Western Sandpipers, Calidris mauri

论文研究:内源性和外源性因素在西部鹬 (Calidris mauri) 幼年定居模式中的作用

基本信息

  • 批准号:
    8901040
  • 负责人:
  • 金额:
    $ 0.8万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    1989
  • 资助国家:
    美国
  • 起止时间:
    1989-07-15 至 1992-06-30
  • 项目状态:
    已结题

项目摘要

Differential migration in birds creates skewed latitudinal wintering distributions of sex and age classes. Both endogenous and exogenous factors influence migration patterns, although the relative effects vary greatly between species, and among individuals within a species. A strong endogenous component may control migratory features such as migration distance, direction and timing. This project intends to examine the roles of endogenous and exogenous factors in settlement patterns of juvenile female and male Western Sandpipers (Calidris mauri). The expression of Zugunruhe (migratory restlessness) and orientation in juveniles of different sex will be measured. The effects of restricted food resources and social status on the expression of Zugunruhe in juveniles before and after the termination of migration will be examined. The behavior of short-stopped, free-living juveniles to compare the ability of the sexes to live in the northern part of the species winter range, and area where females do not typically settle will be monitored. This study will contribute to the understanding of the evolution of differential migration, as it incorporates analysis of both heritable and ecological factors in explaining the distribution of sex classes during the nonbreeding season.
鸟类的差异迁徙造成了性别和年龄阶层的纬向越冬分布的倾斜。内源性和外源性因素都影响迁移模式,尽管物种之间和物种内个体之间的相对影响差异很大。一个强大的内生成分可能控制迁移特征,如迁移距离、方向和时间。本项目旨在探讨内源和外源因素在西部矶鹬雌雄幼鱼定居模式中的作用。测定不同性别幼鱼的迁徙不安和取向的表达。考察限制食物资源和社会地位对迁徙终止前后幼鱼祖gunruhe基因表达的影响。研究人员将对短暂停留、自由生活的幼鸟的行为进行监测,以比较两性在该物种冬季活动范围北部和雌性通常不定居的地区生活的能力。本研究将有助于理解差异迁徙的演变,因为它结合了遗传和生态因素来解释非繁殖季节性别等级的分布。

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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George Cox其他文献

Clopidogrel and Proximal Femoral Fractures: Does Timing of Surgery Affect Blood Loss and Length of Admission? A Preliminary Study Prior to Multicenter Trial
Re-Sensitization of Allogeneic T Cell Resistant Murine AML with Pegylated IFN-Gamma
  • DOI:
    10.1182/blood-2022-167415
  • 发表时间:
    2022-11-15
  • 期刊:
  • 影响因子:
  • 作者:
    Ezhilarasi Chendamarai;Julie K. Ritchey;Leah Gehrs;Michael P. Rettig;Sai Mukund Ramakrishnan;Christopher A Miller;George Cox;Lana Anderson;Timothy J Ley;John F. DiPersio
  • 通讯作者:
    John F. DiPersio
Supplementary Material for Beyond scattering and absorption: Perceptual un-mixing of translucent liq- uids
超越散射和吸收的补充材料:半透明液体的感知非混合
  • DOI:
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    0
  • 作者:
    A. C. Chadwick;George Cox;H. Smithson;Robert W. Kentridge
  • 通讯作者:
    Robert W. Kentridge
Elderly tibial shaft fractures: Open fractures are not associated with increased mortality rates
  • DOI:
    10.1016/j.injury.2009.12.013
  • 发表时间:
    2010-06-01
  • 期刊:
  • 影响因子:
  • 作者:
    George Cox;Simon Jones;Vassilios S. Nikolaou;George Kontakis;Peter V. Giannoudis
  • 通讯作者:
    Peter V. Giannoudis
Specific Inhibition of Gastric Pepsin in the Treatment of Gastric Ulcer
  • DOI:
    10.1016/s0016-5085(69)80062-4
  • 发表时间:
    1969-01-01
  • 期刊:
  • 影响因子:
  • 作者:
    David S. Zimmon;Gilbert Miller;George Cox;Max A. Tesler
  • 通讯作者:
    Max A. Tesler

George Cox的其他文献

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{{ truncateString('George Cox', 18)}}的其他基金

A Comparison of the Influence of Fossorial Rodents on the Dynamics of Mediterranean Grassland Landscapes in Chile and California
化石啮齿动物对智利和加利福尼亚地中海草原景观动态影响的比较
  • 批准号:
    8919473
  • 财政年份:
    1990
  • 资助金额:
    $ 0.8万
  • 项目类别:
    Standard Grant
U.S.-Argentina Cooperative Research on the Dynamics of Mima-mound Grasslands in Argentina
美阿合作研究阿根廷米马丘草原动态
  • 批准号:
    8602539
  • 财政年份:
    1986
  • 资助金额:
    $ 0.8万
  • 项目类别:
    Standard Grant
Collaborative International Research on the Dynamics of Herbivorous Mammals in Mound Grasslands of Kenya and Western North America
肯尼亚和北美西部土丘草原草食哺乳动物动态的国际合作研究
  • 批准号:
    8420336
  • 财政年份:
    1985
  • 资助金额:
    $ 0.8万
  • 项目类别:
    Standard Grant
Scientific Visit to Argentina for Planning of Research on the Formation and Ecology of Mound Grasslands
赴阿根廷考察丘丘草原形成及生态研究规划
  • 批准号:
    8418468
  • 财政年份:
    1985
  • 资助金额:
    $ 0.8万
  • 项目类别:
    Standard Grant
Analysis of the Role of Fossorial Rodents in Landscape Development
化石啮齿动物在景观开发中的作用分析
  • 批准号:
    8211521
  • 财政年份:
    1983
  • 资助金额:
    $ 0.8万
  • 项目类别:
    Standard Grant
Dissertation Research: Insect-Herbivore Predation on Composites of the Coastal Sage Scrub
论文研究:昆虫-草食动物对沿海鼠尾草灌木复合材料的捕食
  • 批准号:
    7423612
  • 财政年份:
    1975
  • 资助金额:
    $ 0.8万
  • 项目类别:
    Standard Grant

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