SGER - Hormones, Behavior and Life Cycles: Predictors of Sensitivity to Global Change?

SGER - 激素、行为和生命周期:全球变化敏感性的预测因子?

基本信息

  • 批准号:
    0712882
  • 负责人:
  • 金额:
    $ 16.14万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2007
  • 资助国家:
    美国
  • 起止时间:
    2007-07-01 至 2009-06-30
  • 项目状态:
    已结题

项目摘要

Global climate change is resulting in dramatic adjustments of migrations, breeding seasons and other aspects of the life cycle of organisms. Some populations flourish, others decline and yet others remain unchanged. Why this variation? A population of songbirds (White-crowned Sparrow, Zonotrichia leucophrys pugetensis) has recently been identified that has colonized urban habitat in Seattle as well as taken advantage of human disturbed areas in the Cascade Mountains of Washington State. These birds have settled in new habitat and their populations have expanded dramatically in the last twenty years. These populations are now in contact with alpine sub-species (Z.l. gambelii) that is not changing its range. Furthermore, there is a non-migratory, coastal sub-species (Z.l. nuttalli) that also is not changing its range. Accumulating data show that the sub-species that is changing its range is also changing hormone-behavior mechanisms to match the alpine sub-species. This includes the hormonal responses to stress. These responses are modulated up in the spring and down once nesting begins in the alpine and northern sub-species, but not modulated in the coastal sub-species (including the populations of Z.l. pugetensis in ancestral, coastal, habitat). Populations of Z.l. pugetensis that have colonized urban and alpine habitats now modulate their hormone responses to acute stress as do the northern and natural alpine sub-species. The current project will determine whether this is an epigenetic effect or rapid evolution of new traits. This will include potential epigenetic regulation of gene transcription in ancestral populations and pioneer populations of Z.l. pugetensis, compared with the sub-species Z.l. gambelii and Z.l. nuttalli that are not changing their ranges. This research will be a new blend of cell and molecular techniques in ecological settings in relation to global change. At least two graduate students will be involved in the field work and developing molecular methods for the epigenetic work. This project will likely become the focus for thesis research for these two students and undergraduate students will also join the project through this spring and summer.
全球气候变化导致迁徙、繁殖季节和生物生命周期其他方面的急剧调整。一些种群繁荣,另一些种群衰落,还有一些种群保持不变。为什么会出现这种变化?一个鸣禽种群(白冠麻雀,Zonotrichia leucophrys pugetensis)最近已被确定,已殖民化的城市栖息地在西雅图,以及利用人类干扰的地区在华盛顿州的喀斯喀特山脉。这些鸟类已经在新的栖息地定居下来,在过去的二十年里,它们的数量急剧增加。这些种群现在与高山亚种(Z.l. Gambelii),其范围不变。此外,还有一个非迁徙的沿海亚种(Z.l.)。这一点也没有改变它的范围。越来越多的数据表明,正在改变其活动范围的亚种也在改变栖息行为机制,以适应高山亚种。这包括荷尔蒙对压力的反应。这些反应在春季向上调制,一旦筑巢开始,高山和北方亚种就向下调制,但在沿海亚种(包括Z.l. pugetensis在祖先,沿海,栖息地)。Z.L.的人口已经在城市和高山栖息地定居的pugetensis现在调节它们对急性应激的激素反应,北方和自然高山亚种也是如此。目前的项目将确定这是一种表观遗传效应还是新性状的快速进化。这将包括Z.l.的祖先群体和先驱群体中基因转录的潜在表观遗传调控。pugetensis,与Z.l. gambelii和Z.l. nuttalli没有改变他们的范围。这项研究将是细胞和分子技术在生态环境中与全球变化有关的一种新的融合。至少有两名研究生将参与实地工作,并为表观遗传学工作开发分子方法。这个项目很可能会成为这两个学生的论文研究的重点,本科生也将通过今年春季和夏季加入这个项目。

项目成果

期刊论文数量(0)
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John Wingfield其他文献

Editorial of the Proceedings of the 25th International Ornithological Congress
  • DOI:
    10.1007/s10336-012-0870-y
  • 发表时间:
    2012-07-06
  • 期刊:
  • 影响因子:
    1.400
  • 作者:
    John Wingfield;Scott Edwards;Cristina Miyaki
  • 通讯作者:
    Cristina Miyaki
The adrenocortical responses to stress in breeding male Chaffinches Fringilla coelebs and Bramblings F. montifringilia in Sweden
瑞典繁殖的雄性燕雀和布兰布林斯 F. montifringilia 的肾上腺皮质对应激的反应
  • DOI:
  • 发表时间:
    2001
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Bengt Silverin;John Wingfield
  • 通讯作者:
    John Wingfield

John Wingfield的其他文献

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{{ truncateString('John Wingfield', 18)}}的其他基金

Modulation of the Adrenocortical Response to Perturbations of the Environment
肾上腺皮质对环境扰动反应的调节
  • 批准号:
    1558049
  • 财政年份:
    2016
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Continuing Grant
Research Coordination Network: Integrating Ecology and Endocrinology in Avian Reproduction
研究协调网络:将生态学和内分泌学整合到鸟类繁殖中
  • 批准号:
    0342242
  • 财政年份:
    2004
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Continuing Grant
Control of Reproductive Function in Diverse Habitats
不同栖息地生殖功能的控制
  • 批准号:
    0317141
  • 财政年份:
    2003
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Continuing Grant
Dissertation Research: Hormonal regulation of immune function in seasonally-breeding birds
论文研究:季节性繁殖鸟类免疫功能的激素调节
  • 批准号:
    0308474
  • 财政年份:
    2003
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Standard Grant
Disseration Research: Ecological and Hormonal Bases of Paternal Care in the Chestnut-collared Longspur, Calcarius ornatus
论文研究:栗领长刺、Calcarius ornatus 父亲照顾的生态和激素基础
  • 批准号:
    0073219
  • 财政年份:
    2000
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Standard Grant
High Latitude Breeding
高纬度育种
  • 批准号:
    9911333
  • 财政年份:
    2000
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Continuing Grant
Control of Reproduction in Diverse Habitats
不同栖息地的繁殖控制
  • 批准号:
    9905679
  • 财政年份:
    1999
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Continuing Grant
Hormone-Behavior Adaptations in Arctic Birds
北极鸟类的激素行为适应
  • 批准号:
    9530826
  • 财政年份:
    1996
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Continuing Grant
Environmental Control of Seasonal Breeding in Diverse Habitats
不同栖息地季节性繁殖的环境控制
  • 批准号:
    9631350
  • 财政年份:
    1996
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Standard Grant
Environmental Control of Seasonal Breeding in Diverse Habitats
不同栖息地季节性繁殖的环境控制
  • 批准号:
    9408013
  • 财政年份:
    1994
  • 资助金额:
    $ 16.14万
  • 项目类别:
    Continuing Grant

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  • 批准号:
    10579234
  • 财政年份:
    2022
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Sexual differentiation of brain and behavior: the interplay between sex hormones and immune system
大脑和行为的性别分化:性激素和免疫系统之间的相互作用
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    572179-2022
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自由循环吸烟者唾液激素的特征以及激素水平动态模式与吸烟行为之间的关系
  • 批准号:
    9975169
  • 财政年份:
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    19K03379
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