| 项目编号: | 1457827
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| 项目名称: | Microbial facilitation at the leading edge of plant species distributional shifts |
| 作者: | Katharine Suding
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| 承担单位: | University of Colorado at Boulder
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| 批准年: | 2014
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| 开始日期: | 2015-06-01
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| 结束日期: | 2018-05-31
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| 资助金额: | USD772000
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Biological Sciences - Environmental Biology
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| 英文关键词: | plant
; plant species
; soil microbe
; plant-microbial
; microbial facilitation
; species distribution
; plant-microbial interaction
; plant distribution
; project
; plant-microbe association
; research
; upper edge
; vascular plant
; plant-microbial association
; plant-free zone
; climate change
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| 英文摘要: | In high-elevation mountain environments, the ranges of many alpine plant species are limited by a short and cold growing season. Beyond these limits no vascular plants survive, but microbial life thrives. Warmer spring temperatures and earlier snowmelt could allow alpine plant species to expand into these unvegetated areas. This research will examine whether some plant species will benefit from soil microbes as they expand their distribution in response to climate change. The interactions of plants with the high elevation soil microbes will be examined to test whether microbes increase the ability of plants to withstand cold, drought, and low-nutrient stress. The research will advance ecological science in the context of understanding the impacts of climate change on biodiversity and changes in species distribution on the landscape. The project also will contribute to secondary school education through curriculum development.
This project will investigate the influence of a key biotic interaction, between plants and soil microbes, on the ability of plant species to track climate change and expand their range uphill in high montane systems. Recent methodological advances will be used to develop experiments to quantify mechanisms that underlie plant-microbial associations and to include results in habitat distribution models. The research includes (1) observational work on distributional patterns of both plants and soil microbes (bacteria and fungi) in a spatially-explicit grid at the upper edge of plant distributions into unvegetated sub-nival areas, (2) manipulations of plant-microbial interactions via inoculation experiments combined with dual-RNA transcriptomics to assay gene expression to describe interactions among plant and microbes and (3) field manipulations of growing season length and plant-microbe associations to quantify the effects of microbial facilitation into previously plant-free zones. Partnership with Rocky Mountain National Park will enable the project to collect data relevant to management concerns and participate in outreach programs, and Science LIVE, an interactive web-based tool, will be used to develop high school curriculum modules. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94543
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Katharine Suding. Microbial facilitation at the leading edge of plant species distributional shifts. 2014-01-01.
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