Acceleration of climate warming and plant dynamics in Antarctica
: The strong air temperature warming between the 1950s and 2016 in the Antarctic Peninsula region1 exceeded the global average warming2,3 with evident impacts on terrestrial ecosystems and the two native Antarctic vascular plants Deschampsia antarctica Desv. and Colobanthus quitensis (Kunth) Bartl.4...
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Online Access: | https://hdl.handle.net/2318/1843742 https://doi.org/10.1016/j.cub.2022.01.074 |
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ftunivtorino:oai:iris.unito.it:2318/1843742 2023-10-29T02:30:36+01:00 Acceleration of climate warming and plant dynamics in Antarctica Cannone, Nicoletta Malfasi, Francesco Favero-Longo, Sergio Enrico Convey, Peter Guglielmin, Mauro Cannone, Nicoletta Malfasi, Francesco Favero-Longo, Sergio Enrico Convey, Peter Guglielmin, Mauro 2022 https://hdl.handle.net/2318/1843742 https://doi.org/10.1016/j.cub.2022.01.074 eng eng info:eu-repo/semantics/altIdentifier/pmid/35167803 info:eu-repo/semantics/altIdentifier/wos/WOS:000789649800003 volume:32 firstpage:1 lastpage:8 numberofpages:8 journal:CURRENT BIOLOGY https://hdl.handle.net/2318/1843742 doi:10.1016/j.cub.2022.01.074 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85127708763 info:eu-repo/semantics/closedAccess Colobanthus quitensi Deschampsia antarctica accelerated ecosystem dynamic climate warming acceleration maritime Antarctic info:eu-repo/semantics/article 2022 ftunivtorino https://doi.org/10.1016/j.cub.2022.01.074 2023-10-03T22:33:12Z : The strong air temperature warming between the 1950s and 2016 in the Antarctic Peninsula region1 exceeded the global average warming2,3 with evident impacts on terrestrial ecosystems and the two native Antarctic vascular plants Deschampsia antarctica Desv. and Colobanthus quitensis (Kunth) Bartl.4-10 Subsequently, a short but intense cooling occurred from the Antarctic Peninsula to the South Orkney Islands (1999-2016),1,11-13 impacting terrestrial ecosystems, with reduced lichen growth14 and no further expansion of D. antarctica in the Argentine Islands.5 The strong warming trend is predicted to resume15 with expansion of ice-free areas and continued impacts on the abiotic and biotic components of terrestrial ecosystems including the ingression of non-native species3,8,16,17 as recently recorded at Signy Island (South Orkney Islands).18-20 In this study we document acceleration in the expansion of D. antarctica and C. quitensis in the last decade (2009-2018) at Signy Island, where the air temperature warming trend resumed in summer after 2012. We hypothesize that the striking expansion of these plants is mainly triggered by summer air warming and release from the limitation of fur seal disturbance. We also hypothesize that the "pulse" climatic event of the strong air cooling detected in 2012 did not appear to influence the vegetation community dynamics on this island. This is the first evidence in Antarctica for accelerated ecosystem responses to climate warming, confirming similar observations in the Northern Hemisphere. Our findings support the hypothesis that future warming will trigger significant changes in these fragile Antarctic ecosystems. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Argentine Islands Signy Island South Orkney Islands Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) Current Biology 32 7 1599 1606.e2 |
institution |
Open Polar |
collection |
Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) |
op_collection_id |
ftunivtorino |
language |
English |
topic |
Colobanthus quitensi Deschampsia antarctica accelerated ecosystem dynamic climate warming acceleration maritime Antarctic |
spellingShingle |
Colobanthus quitensi Deschampsia antarctica accelerated ecosystem dynamic climate warming acceleration maritime Antarctic Cannone, Nicoletta Malfasi, Francesco Favero-Longo, Sergio Enrico Convey, Peter Guglielmin, Mauro Acceleration of climate warming and plant dynamics in Antarctica |
topic_facet |
Colobanthus quitensi Deschampsia antarctica accelerated ecosystem dynamic climate warming acceleration maritime Antarctic |
description |
: The strong air temperature warming between the 1950s and 2016 in the Antarctic Peninsula region1 exceeded the global average warming2,3 with evident impacts on terrestrial ecosystems and the two native Antarctic vascular plants Deschampsia antarctica Desv. and Colobanthus quitensis (Kunth) Bartl.4-10 Subsequently, a short but intense cooling occurred from the Antarctic Peninsula to the South Orkney Islands (1999-2016),1,11-13 impacting terrestrial ecosystems, with reduced lichen growth14 and no further expansion of D. antarctica in the Argentine Islands.5 The strong warming trend is predicted to resume15 with expansion of ice-free areas and continued impacts on the abiotic and biotic components of terrestrial ecosystems including the ingression of non-native species3,8,16,17 as recently recorded at Signy Island (South Orkney Islands).18-20 In this study we document acceleration in the expansion of D. antarctica and C. quitensis in the last decade (2009-2018) at Signy Island, where the air temperature warming trend resumed in summer after 2012. We hypothesize that the striking expansion of these plants is mainly triggered by summer air warming and release from the limitation of fur seal disturbance. We also hypothesize that the "pulse" climatic event of the strong air cooling detected in 2012 did not appear to influence the vegetation community dynamics on this island. This is the first evidence in Antarctica for accelerated ecosystem responses to climate warming, confirming similar observations in the Northern Hemisphere. Our findings support the hypothesis that future warming will trigger significant changes in these fragile Antarctic ecosystems. |
author2 |
Cannone, Nicoletta Malfasi, Francesco Favero-Longo, Sergio Enrico Convey, Peter Guglielmin, Mauro |
format |
Article in Journal/Newspaper |
author |
Cannone, Nicoletta Malfasi, Francesco Favero-Longo, Sergio Enrico Convey, Peter Guglielmin, Mauro |
author_facet |
Cannone, Nicoletta Malfasi, Francesco Favero-Longo, Sergio Enrico Convey, Peter Guglielmin, Mauro |
author_sort |
Cannone, Nicoletta |
title |
Acceleration of climate warming and plant dynamics in Antarctica |
title_short |
Acceleration of climate warming and plant dynamics in Antarctica |
title_full |
Acceleration of climate warming and plant dynamics in Antarctica |
title_fullStr |
Acceleration of climate warming and plant dynamics in Antarctica |
title_full_unstemmed |
Acceleration of climate warming and plant dynamics in Antarctica |
title_sort |
acceleration of climate warming and plant dynamics in antarctica |
publishDate |
2022 |
url |
https://hdl.handle.net/2318/1843742 https://doi.org/10.1016/j.cub.2022.01.074 |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Argentine Islands Signy Island South Orkney Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Argentine Islands Signy Island South Orkney Islands |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/35167803 info:eu-repo/semantics/altIdentifier/wos/WOS:000789649800003 volume:32 firstpage:1 lastpage:8 numberofpages:8 journal:CURRENT BIOLOGY https://hdl.handle.net/2318/1843742 doi:10.1016/j.cub.2022.01.074 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85127708763 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.cub.2022.01.074 |
container_title |
Current Biology |
container_volume |
32 |
container_issue |
7 |
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1599 |
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1606.e2 |
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1781060047733784576 |