How do microbial communities respond to changes in nutrient availability?
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Microbial communities respond to changes in nutrient availability by altering their composition and functional activities. In a phototrophic microbial mat from Maritime Antarctica, nutrient amendments led to shifts in the community structure and metabolic functions of both phototrophic and heterotrophic bacteria . Similarly, in a lake ecosystem, long-term changes in nutrient availability due to eutrophication resulted in distinct shifts in the composition of bacterial communities . In an alpine grassland, plant and soil microbial communities responded asynchronously to short-term nutrient additions, with plants showing a quicker response than soil microbes . The growth rate of microbial populations in response to nutrient availability can vary widely, even for the same organism and resource, due to genetic drift and population dynamics . Additionally, the abundance of microbial species can be shaped by nutrient availability, with ribosomal RNA gene copy number decreasing from the abundant to the rare biosphere in nutrient-rich sediments but exhibiting the opposite pattern in nutrient-scarce ocean water .
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| Papers (4) | Insight |
|---|---|
| The paper discusses the response of microbial communities in a lake to changes in nutrient availability. It states that the relative abundance of cyanobacteria closely reflects nutrient enrichment, and other bacterial taxa showed shifts in abundance in response to changing lake conditions. | |
| The paper does not directly address how microbial communities respond to changes in nutrient availability. The paper focuses on the growth rate of microbial populations and the variation in half-saturation concentrations of resources within and across species. | |
| The paper discusses how microbial species abundance profiles can be explained by nutrient availability, the rrn copy number, and ecological networks. It highlights the important roles of bacterial life-history strategy and membership in determining their reproductive success in response to changes in nutrient availability. | |
| The paper discusses how microbial communities in a maritime Antarctic microbial mat respond to changes in nutrient availability, specifically inorganic nutrients such as nitrogen and phosphorus. |
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