Remote sensing reveals Antarctic green snow algae as important terrestrial carbon sink
Abstract: We present the first estimate of green snow algae community biomass and distribution along the Antarctic Peninsula. Sentinel 2 imagery supported by two field campaigns revealed 1679 snow algae blooms, seasonally covering 1.95 × 106 m2 and equating to 1.3 × 103 tonnes total dry biomass. Eco...
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ftdatacite:10.17863/cam.70209 2023-05-15T13:59:43+02:00 Remote sensing reveals Antarctic green snow algae as important terrestrial carbon sink Gray, Andrew Krolikowski, Monika Fretwell, Peter Convey, Peter Peck, Lloyd S. Mendelova, Monika Smith, Alison G. Davey, Matthew P. 2020 https://dx.doi.org/10.17863/cam.70209 https://www.repository.cam.ac.uk/handle/1810/322753 unknown Apollo - University of Cambridge Repository Article /631/449 /704/47/4113 /704/106/125 /704/158/855 article Text Article article-journal ScholarlyArticle 2020 ftdatacite https://doi.org/10.17863/cam.70209 2021-11-05T12:55:41Z Abstract: We present the first estimate of green snow algae community biomass and distribution along the Antarctic Peninsula. Sentinel 2 imagery supported by two field campaigns revealed 1679 snow algae blooms, seasonally covering 1.95 × 106 m2 and equating to 1.3 × 103 tonnes total dry biomass. Ecosystem range is limited to areas with average positive summer temperatures, and distribution strongly influenced by marine nutrient inputs, with 60% of blooms less than 5 km from a penguin colony. A warming Antarctica may lose a majority of the 62% of blooms occupying small, low-lying islands with no high ground for range expansion. However, bloom area and elevation were observed to increase at lower latitudes, suggesting that parallel expansion of bloom area on larger landmasses, close to bird or seal colonies, is likely. This increase is predicted to outweigh biomass lost from small islands, resulting in a net increase in snow algae extent and biomass as the Peninsula warms. Text Antarc* Antarctic Antarctic Peninsula Antarctica DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Antarctic Peninsula |
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Article /631/449 /704/47/4113 /704/106/125 /704/158/855 article |
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Article /631/449 /704/47/4113 /704/106/125 /704/158/855 article Gray, Andrew Krolikowski, Monika Fretwell, Peter Convey, Peter Peck, Lloyd S. Mendelova, Monika Smith, Alison G. Davey, Matthew P. Remote sensing reveals Antarctic green snow algae as important terrestrial carbon sink |
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Article /631/449 /704/47/4113 /704/106/125 /704/158/855 article |
description |
Abstract: We present the first estimate of green snow algae community biomass and distribution along the Antarctic Peninsula. Sentinel 2 imagery supported by two field campaigns revealed 1679 snow algae blooms, seasonally covering 1.95 × 106 m2 and equating to 1.3 × 103 tonnes total dry biomass. Ecosystem range is limited to areas with average positive summer temperatures, and distribution strongly influenced by marine nutrient inputs, with 60% of blooms less than 5 km from a penguin colony. A warming Antarctica may lose a majority of the 62% of blooms occupying small, low-lying islands with no high ground for range expansion. However, bloom area and elevation were observed to increase at lower latitudes, suggesting that parallel expansion of bloom area on larger landmasses, close to bird or seal colonies, is likely. This increase is predicted to outweigh biomass lost from small islands, resulting in a net increase in snow algae extent and biomass as the Peninsula warms. |
format |
Text |
author |
Gray, Andrew Krolikowski, Monika Fretwell, Peter Convey, Peter Peck, Lloyd S. Mendelova, Monika Smith, Alison G. Davey, Matthew P. |
author_facet |
Gray, Andrew Krolikowski, Monika Fretwell, Peter Convey, Peter Peck, Lloyd S. Mendelova, Monika Smith, Alison G. Davey, Matthew P. |
author_sort |
Gray, Andrew |
title |
Remote sensing reveals Antarctic green snow algae as important terrestrial carbon sink |
title_short |
Remote sensing reveals Antarctic green snow algae as important terrestrial carbon sink |
title_full |
Remote sensing reveals Antarctic green snow algae as important terrestrial carbon sink |
title_fullStr |
Remote sensing reveals Antarctic green snow algae as important terrestrial carbon sink |
title_full_unstemmed |
Remote sensing reveals Antarctic green snow algae as important terrestrial carbon sink |
title_sort |
remote sensing reveals antarctic green snow algae as important terrestrial carbon sink |
publisher |
Apollo - University of Cambridge Repository |
publishDate |
2020 |
url |
https://dx.doi.org/10.17863/cam.70209 https://www.repository.cam.ac.uk/handle/1810/322753 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_doi |
https://doi.org/10.17863/cam.70209 |
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1766268487541456896 |