Marked Seasonal Changes in the Microbial Production, Community Composition, and Biogeochemistry of Glacial Snowpack Ecosystems in the Maritime Antarctic

• Published in: Journal of Geophysical Research: Biogeosciences
• Main Authors: Hodson, A.J., Šabacká, Marie, Dayal, A., Edwards, Arwyn, Cook, J., Convey, Peter, Redeker, Kelly Robert, Pearce, D.A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Geophysical Union 2021
• Subjects: Antarctic; The Antarctic; Signy Island; Guano; Antarc*; Antarctica
• Online Access: https://hdl.handle.net/11250/2799849; https://doi.org/10.1029/2020JG005706

We describe seasonal changes in the biogeochemistry, microbial community and ecosystem production of two glacial snowpacks in the maritime Antarctic during a cold summer. Frequent snowfall and low, intermittent melt on the glaciers suppressed surface photosynthesis and promoted net heterotrophy. Con...