Collaborative Research: The Role of Snow Patches on the Spatial Distribution of Soil Microbial Communities and Biogeochemical Cycling in the Antarctic Dry Valleys
合作研究:雪斑对南极干谷土壤微生物群落空间分布和生物地球化学循环的作用
基本信息
- 批准号:0838922
- 负责人:
- 金额:$ 24.41万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2009
- 资助国家:美国
- 起止时间:2009-08-15 至 2012-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
AbstractThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Two models have been proposed to describe controls over microbial biogeography. One model proposes that microbes are ubiquitously distributed across the global environment, and that environmental conditions select for taxa physiologically adapted to local physical conditions. An alternative model predicts that dispersal is the important limitation to the distribution of microorganisms and that spatial heterogeneity of microbial communities is a result of both dispersal and local environmental limitations. According to both models, spatial heterogeneity of microbial communities may be especially pronounced in extreme ecosystems where the environmental selection for organisms with suitable physiology is most strongly manifest. We propose that Antarctic terrestrial environments are ideal places to examine microbial biogeography for 3 reasons: 1) the pristine nature and remoteness of Antarctica minimizes the prevalence of exotic species dispersed through human vectors; 2) the extreme conditions of Antarctic environments provide a strong environmental filter which limits the establishment of non-indigenous taxa; and 3) extreme heterogeneity in the terrestrial environment provides natural gradients of soil conditions (temperature, water and nutrient availability). In the proposed research we will investigate the influence of snow on the composition and spatial distribution of soil microbial communities and linked biogeochemical cycling in the McMurdo Dry Valleys. We will conduct fieldwork at the landscape scale (repeated remote sensing to characterize snow distribution), at the valley and patch scales (quantify snow patch ablation, microbial communities and biogeochemical cycling in subnivian soils). We hypothesize that snow patches play an important role in structuring the spatial distribution of soil microbial communities and their associated ecosystem functioning because of the physical and hydrological influences that snow patches have on the soil environment. The research will contribute to greater public awareness of the importance of polar research to fundamental questions of biology, ecology and hydrology through direct linkages with International Antarctic Institute public outreach activities, including dissemination of web-based learning units on environmental science and microbiology, targeted as resources for secondary and post-secondary educators. Three graduate students, one postdoctoral scholar and multiple undergraduates will participate in the research activities.
摘要该奖项根据 2009 年美国复苏和再投资法案(公法 111-5)提供资金。已提出两种模型来描述对微生物生物地理学的控制。一种模型提出,微生物普遍分布在全球环境中,环境条件会选择在生理上适应当地物理条件的类群。另一种模型预测,扩散是微生物分布的重要限制,微生物群落的空间异质性是扩散和当地环境限制的结果。根据这两个模型,微生物群落的空间异质性在极端生态系统中可能尤其明显,在极端生态系统中,对具有合适生理学的生物体的环境选择最为明显。我们认为南极陆地环境是研究微生物生物地理学的理想场所,原因有以下三个:1)南极洲的原始性质和地处偏远最大限度地减少了通过人类媒介传播的外来物种的流行; 2)南极环境的极端条件提供了强大的环境过滤器,限制了非本土类群的建立; 3)陆地环境的极端异质性提供了土壤条件(温度、水和养分可用性)的自然梯度。在拟议的研究中,我们将研究雪对麦克默多干谷土壤微生物群落的组成和空间分布以及相关生物地球化学循环的影响。我们将在景观尺度(重复遥感来表征积雪分布)、山谷和斑块尺度(量化雪斑消融、微生物群落和地下土壤中的生物地球化学循环)进行实地考察。我们假设雪斑在构建土壤微生物群落的空间分布及其相关的生态系统功能方面发挥着重要作用,因为雪斑对土壤环境具有物理和水文影响。该研究将通过与国际南极研究所公共宣传活动的直接联系,包括传播基于网络的环境科学和微生物学学习单元,旨在提高公众对极地研究对生物学、生态学和水文学基本问题的重要性的认识。为中等和高等教育工作者提供的资源。三名研究生、一名博士后和多名本科生将参加研究活动。
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)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
John Barrett其他文献
Allogeneic transplantation using non-myeloablative transplant regimens.
使用非清髓性移植方案的同种异体移植。
- DOI:
- 发表时间:
2001 - 期刊:
- 影响因子:0
- 作者:
M. Battiwalla;John Barrett - 通讯作者:
John Barrett
Assessing the energy and socio-macroeconomic impacts of the EV transition: A UK case study 2020–2050
评估电动汽车转型对能源和社会宏观经济的影响:2020-2050 年英国案例研究
- DOI:
10.1016/j.apenergy.2024.123367 - 发表时间:
2024-09-01 - 期刊:
- 影响因子:11.2
- 作者:
Jaime Nieto;P. Brockway;Marco Sakai;John Barrett - 通讯作者:
John Barrett
Purification of cytosolic glutathione transferases from Schistocephalus solidus (plerocercoid): interaction with anthelmintics and products of lipid peroxidation.
从固状裂头虫(裂尾蚴)中纯化胞质谷胱甘肽转移酶:与驱虫药和脂质过氧化产物的相互作用。
- DOI:
- 发表时间:
1989 - 期刊:
- 影响因子:0
- 作者:
P. Brophy;Athanasios Papadopoulos;Maria Touraki;Brian F. Coles;Wolfgang Körting;John Barrett - 通讯作者:
John Barrett
Electrophysiological analysis of responses of adult females of Brugia pahangi to some chemicals
成年雌性彭亨布鲁虫对某些化学物质反应的电生理分析
- DOI:
10.1017/s0031182001007375 - 发表时间:
2001-03-01 - 期刊:
- 影响因子:2.4
- 作者:
R. N. Rolfe;John Barrett;Roland N. Perry - 通讯作者:
Roland N. Perry
Fasciola hepatica: carbohydrate metabolism of the adult.
肝片形吸虫:成人的碳水化合物代谢。
- DOI:
- 发表时间:
1983 - 期刊:
- 影响因子:2.1
- 作者:
G. M. Lloyd;John Barrett - 通讯作者:
John Barrett
John Barrett的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('John Barrett', 18)}}的其他基金
Conference: Scientific Assessment of the McMurdo Dry Valleys Ecosystem: Environmental Stewardship in a Time of Dynamic Change
会议:麦克默多干谷生态系统的科学评估:动态变化时期的环境管理
- 批准号:
2409327 - 财政年份:2024
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
Collaborative Research: Moving Beyond the Margins: Modeling Water Availability and Habitable Terrestrial Ecosystems in the Polar Desert of the McMurdo Dry Valleys
合作研究:超越边缘:麦克默多干谷极地沙漠的水资源可用性和宜居陆地生态系统建模
- 批准号:
2044924 - 财政年份:2021
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
Delivering net zero - the role of research
实现净零排放——研究的作用
- 批准号:
EP/V011960/1 - 财政年份:2020
- 资助金额:
$ 24.41万 - 项目类别:
Research Grant
COLLABORATIVE RESEARCH: Remote Characterization of Microbial Mats in Taylor Valley, Antarctica, through In Situ Sampling and Spectral Validation
合作研究:通过原位采样和光谱验证对南极洲泰勒谷微生物垫进行远程表征
- 批准号:
1744785 - 财政年份:2018
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
COLLABORATIVE RESEARCH: Remote Characterization of Microbial Mats in Taylor Valley, Antarctica, through In Situ Sampling and Spectral Validation
合作研究:通过原位采样和光谱验证对南极洲泰勒谷微生物垫进行远程表征
- 批准号:
1744785 - 财政年份:2018
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
End Use Energy Demand Centre titled "Centre for Industrial Energy, Materials, Energy and Products (CIE-MAP)
最终用途能源需求中心名为“工业能源、材料、能源和产品中心 (CIE-MAP)”
- 批准号:
EP/N022645/1 - 财政年份:2015
- 资助金额:
$ 24.41万 - 项目类别:
Research Grant
Dissertation Research: Do the concomitant effects of pH and ammonium concentration on ammonia availability explain differential ammonia oxidation by bacteria and archaea?
论文研究:pH 值和铵浓度对氨利用率的共同影响是否可以解释细菌和古细菌对氨的氧化差异?
- 批准号:
1210607 - 财政年份:2012
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
Dissertation Research: The influence of resource gradients on soil bacterial communities in a simple ecosystem
论文研究:简单生态系统中资源梯度对土壤细菌群落的影响
- 批准号:
1210570 - 财政年份:2012
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
Collaborative Research: Controls over the Spatial Distribution and Activity of Microbial Communities in Antarctic Soils
合作研究:控制南极土壤微生物群落的空间分布和活动
- 批准号:
0944556 - 财政年份:2010
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
"Collaborative Research: Hydrological Controls over Biogeochemistry and Microbial Community Structure and Function across Terrestrial/Aquatic Interfaces in a Polar Desert"
“合作研究:极地沙漠中陆地/水生界面生物地球化学和微生物群落结构和功能的水文控制”
- 批准号:
0723643 - 财政年份:2006
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
相似国自然基金
旅游参与度差异视角下乡村妇女社会角色变迁、自我效能感及其关联机制研究
- 批准号:72362010
- 批准年份:2023
- 资助金额:27 万元
- 项目类别:地区科学基金项目
基于可解释机器学习的科学知识角色转变预测研究
- 批准号:72304108
- 批准年份:2023
- 资助金额:30 万元
- 项目类别:青年科学基金项目
骑墙守望还是全力奔赴:基于角色理论的混合创业进入、退出与长期回报研究
- 批准号:72372119
- 批准年份:2023
- 资助金额:40 万元
- 项目类别:面上项目
喜忧参半:服务机器人角色对旅游企业员工幸福感的双路径影响机制研究
- 批准号:72302099
- 批准年份:2023
- 资助金额:30 万元
- 项目类别:青年科学基金项目
人工智能角色对个体工作绩效的影响研究:心智理论视角
- 批准号:72302020
- 批准年份:2023
- 资助金额:30 万元
- 项目类别:青年科学基金项目
相似海外基金
Collaborative Research: The role of temporally varying specific storage on confined aquifer dynamics
合作研究:随时间变化的特定存储对承压含水层动态的作用
- 批准号:
2242365 - 财政年份:2024
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
Collaborative Research: New to IUSE: EDU DCL:Diversifying Economics Education through Plug and Play Video Modules with Diverse Role Models, Relevant Research, and Active Learning
协作研究:IUSE 新增功能:EDU DCL:通过具有不同角色模型、相关研究和主动学习的即插即用视频模块实现经济学教育多元化
- 批准号:
2315696 - 财政年份:2024
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
Collaborative Research: New to IUSE: EDU DCL:Diversifying Economics Education through Plug and Play Video Modules with Diverse Role Models, Relevant Research, and Active Learning
协作研究:IUSE 新增功能:EDU DCL:通过具有不同角色模型、相关研究和主动学习的即插即用视频模块实现经济学教育多元化
- 批准号:
2315701 - 财政年份:2024
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
Collaborative Research: Determining the role of uranium(V) in the global uranium cycle by characterizing burial mechanisms in marine sinks
合作研究:通过表征海洋汇埋藏机制确定铀(V)在全球铀循环中的作用
- 批准号:
2322205 - 财政年份:2024
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant
Collaborative Research: Determining the role of uranium(V) in the global uranium cycle by characterizing burial mechanisms in marine sinks
合作研究:通过表征海洋汇埋藏机制确定铀(V)在全球铀循环中的作用
- 批准号:
2322206 - 财政年份:2024
- 资助金额:
$ 24.41万 - 项目类别:
Standard Grant