Microbes influence the biogeochemical and optical properties of maritime Antarctic snow

Snowmelt in the Antarctic Peninsula region has increased significantly in recent decades, leading to greater liquid water availability across a more expansive area. As a consequence, changes in the biological activity within wet Antarctic snow require consideration if we are to better understand ter...

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Bibliographic Details
Published in:Journal of geophysical research. Biogeosciences 2017-06, Vol.122 (6), p.1456-1470
Main Authors: Hodson, A. J., Nowak, A., Cook, J., Sabacka, M., Wharfe, E. S., Pearce, D. A., Convey, P., Vieira, G.
Format: Article
Language:English
Subjects:
Absorption
Algae
Aquatic habitats
Availability
Bacteria
Biogeochemistry
Biological activity
Biomass
Carbon cycle
Carbon dioxide
Carotenoids
Chlorophyll
Chlorophylls
Coastal environments
Detritus
Dissolved inorganic carbon
Dissolved organic carbon
Earth
Fauna
Inorganic carbon
Marine animals
Marine fauna
Marine microorganisms
maritime Antarctica
Melting
Microbial activity
Microorganisms
Mineral nutrients
Nutrients
Optical properties
Pigments
Polar environments
Properties
Rocks
Snow
snow algae
snow bacteria
snow optical properties
Snowmelt
Terrestrial environments
Water
Water availability
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Summary:Snowmelt in the Antarctic Peninsula region has increased significantly in recent decades, leading to greater liquid water availability across a more expansive area. As a consequence, changes in the biological activity within wet Antarctic snow require consideration if we are to better understand terrestrial carbon cycling on Earth's coldest continent. This paper therefore examines the relationship between microbial communities and the chemical and physical environment of wet snow habitats on Livingston Island of the maritime Antarctic. In so doing, we reveal a strong reduction in bacterial diversity and autotrophic biomass within a short (
ISSN:2169-8953
2169-8961
DOI:10.1002/2016JG003694