Ice-free area expansion compounds the non-native species threat to Antarctic terrestrial biodiversity
Warming across ice-covered regions will result in changes to both the physical and climatic environment, revealing new ice-free habitat and new climatically suitable habitats for non-native species establishment. Recent studies have independently quantified each of these aspects in Antarctica, where...
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2019
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crcenteros:10.32942/osf.io/fbzm5 2023-05-15T14:10:09+02:00 Ice-free area expansion compounds the non-native species threat to Antarctic terrestrial biodiversity Duffy, Grant Lee, Jasmine R 2019 http://dx.doi.org/10.32942/osf.io/fbzm5 unknown Center for Open Science https://creativecommons.org/licenses/by-sa/4.0/legalcode CC-BY-SA posted-content 2019 crcenteros https://doi.org/10.32942/osf.io/fbzm5 2022-02-04T12:14:43Z Warming across ice-covered regions will result in changes to both the physical and climatic environment, revealing new ice-free habitat and new climatically suitable habitats for non-native species establishment. Recent studies have independently quantified each of these aspects in Antarctica, where ice-free areas form crucial habitat for the majority of terrestrial biodiversity. Here we synthesise projections of Antarctic ice-free area expansion, recent spatial predictions of non-native species risk, and the frequency of human activities to quantify how these facets of anthropogenic change may interact now and in the future. Under a high-emissions future climate scenario, over a quarter of ice-free area and over 80 % of the ~14 thousand km2 of newly uncovered ice-free area could be vulnerable to invasion by one or more of the modelled non-native species by the end of the century. Ice-free areas identified as vulnerable to non-native species establishment were significantly closer to human activity than unsuitable areas were. Furthermore, almost half of the new vulnerable ice-free area is within 20 km of a site of current human activity. The Antarctic Peninsula, where human activity is heavily concentrated, will be at particular risk. The implications of this for conservation values of Antarctica and the management efforts required to mitigate against it are in need of urgent consideration. Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Antarctica COS Center for Open Science (via Crossref) Antarctic The Antarctic Antarctic Peninsula |
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COS Center for Open Science (via Crossref) |
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description |
Warming across ice-covered regions will result in changes to both the physical and climatic environment, revealing new ice-free habitat and new climatically suitable habitats for non-native species establishment. Recent studies have independently quantified each of these aspects in Antarctica, where ice-free areas form crucial habitat for the majority of terrestrial biodiversity. Here we synthesise projections of Antarctic ice-free area expansion, recent spatial predictions of non-native species risk, and the frequency of human activities to quantify how these facets of anthropogenic change may interact now and in the future. Under a high-emissions future climate scenario, over a quarter of ice-free area and over 80 % of the ~14 thousand km2 of newly uncovered ice-free area could be vulnerable to invasion by one or more of the modelled non-native species by the end of the century. Ice-free areas identified as vulnerable to non-native species establishment were significantly closer to human activity than unsuitable areas were. Furthermore, almost half of the new vulnerable ice-free area is within 20 km of a site of current human activity. The Antarctic Peninsula, where human activity is heavily concentrated, will be at particular risk. The implications of this for conservation values of Antarctica and the management efforts required to mitigate against it are in need of urgent consideration. |
format |
Other/Unknown Material |
author |
Duffy, Grant Lee, Jasmine R |
spellingShingle |
Duffy, Grant Lee, Jasmine R Ice-free area expansion compounds the non-native species threat to Antarctic terrestrial biodiversity |
author_facet |
Duffy, Grant Lee, Jasmine R |
author_sort |
Duffy, Grant |
title |
Ice-free area expansion compounds the non-native species threat to Antarctic terrestrial biodiversity |
title_short |
Ice-free area expansion compounds the non-native species threat to Antarctic terrestrial biodiversity |
title_full |
Ice-free area expansion compounds the non-native species threat to Antarctic terrestrial biodiversity |
title_fullStr |
Ice-free area expansion compounds the non-native species threat to Antarctic terrestrial biodiversity |
title_full_unstemmed |
Ice-free area expansion compounds the non-native species threat to Antarctic terrestrial biodiversity |
title_sort |
ice-free area expansion compounds the non-native species threat to antarctic terrestrial biodiversity |
publisher |
Center for Open Science |
publishDate |
2019 |
url |
http://dx.doi.org/10.32942/osf.io/fbzm5 |
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_rights |
https://creativecommons.org/licenses/by-sa/4.0/legalcode |
op_rightsnorm |
CC-BY-SA |
op_doi |
https://doi.org/10.32942/osf.io/fbzm5 |
_version_ |
1766282189548290048 |