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Patterns in soil ammonia-oxidizer response to global change Nature Precedings
Kathryn M. Docherty; Brendan Bohannan; Audrey Niboyet; Xavier LeRoux.
Background/Question/Methods
The Domains Archaea and Bacteria contain the vast majority of Earth’s biodiversity and biomass, and their members play critical, often exclusive, roles in many biogeochemical cycles and ecosystem services. Human-induced global change, particularly with respect to increased nitrogen deposition, has the potential to drastically alter how soil nitrifying communities perform their biogeochemical function. Additionally, multi-factor global change can alter how microbial communities interact with each other and with the associated plant communities. This study, performed in the context of the long-term Jasper Ridge Global Change Experiment (JRGCE) in a California grassland ecosystem, examines how...
Tipo: Presentation Palavras-chave: Ecology; Microbiology; Earth & Environment.
Ano: 2011 URL: http://precedings.nature.com/documents/5508/version/1
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Responses of soil nitrite-oxidizers to global environmental changes Nature Precedings
Audrey Niboyet; Eléonore Attard; Laure Barthes; Christopher B. Field; Nadine Guillaumaud; Bruce A. Hungate; Paul W. Leadley; Catherine Lerondelle; Thomas Pommier; Maria Tourna; Akihiko Terada; Franck Poly; Xavier Le Roux.
Background/Question/Methods
There is increasing evidence that global change can alter the structure of plant
communities with large impacts on the functioning of terrestrial ecosystems. However, little is known about the impact of global change on soil microbial communities. In particular, the response of soil nitrite-oxidizers microorganisms that mediate the second step of nitrification, a key process of the nitrogen cycle, has never been investigated.
Here, we examined the effects of four main global environmental changes on the activity, the abundance and the diversity of soil nitrite-oxidizers in an annual grassland ecosystem as part of the Jasper Ridge Global Change Experiment (CA, USA). This...
Tipo: Poster Palavras-chave: Ecology; Microbiology; Earth & Environment.
Ano: 2011 URL: http://precedings.nature.com/documents/5509/version/1
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