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Ecosystem function decays by fungal outbreaks in Antarctic microbial mats

AutorVelázquez, David; López-Bueno, Alberto ; Aguirre de Cárcer, Daniel ; Ríos, Asunción de los ; Alcamí, Antonio ; Quesada, Antonio
Fecha de publicación14-mar-2016
EditorNature Publishing Group
CitaciónScientific Reports 6 (2016)
ResumenAntarctica harbours a remarkably diverse range of freshwater bodies and terrestrial ecosystems, where microbial mats are considered the most important systems in terms of biomass and metabolic capabilities. We describe the presence of lysis plaque-like macroscopic blighted patches within the predominant microbial mats on Livingston Island (Antarctic Peninsula). Those blighting circles are associated with decay in physiological traits as well as nitrogen depletion and changes in the spatial microstructure; these alterations were likely related to disruption of the biogeochemical gradients within the microbial ecosystem caused by an unusually high fungal abundance and consequent physical alterations. This phenomenon has been evidenced at a time of unprecedented rates of local warming in the Antarctic Peninsula area, and decay of these ecosystems is potentially stimulated by warmer temperatures.
URIhttp://hdl.handle.net/10261/151311
DOI10.1038/srep22954
Identificadoresdoi: 10.1038/srep22954
issn: 2045-2322
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