Glacier retreat on South Georgia and implications for the spread of rats
Using archival photography and satellite imagery, we have analysed the rates of advance or retreat of 103 coastal glaciers on South Georgia from the 1950s to the present. Ninety-seven percent of these glaciers have retreated over the period for which observations are available. The average rate of r...
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2010
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ftnerc:oai:nora.nerc.ac.uk:10481 2023-05-15T14:14:52+02:00 Glacier retreat on South Georgia and implications for the spread of rats Cook, Alison J. Poncet, Sally Cooper, A. Paul R. Herbert, David Christie, D. 2010 text http://nora.nerc.ac.uk/id/eprint/10481/ https://nora.nerc.ac.uk/id/eprint/10481/1/-ANS-ANS22_03-S0954102010000064a.pdf en eng Cambridge University Press https://nora.nerc.ac.uk/id/eprint/10481/1/-ANS-ANS22_03-S0954102010000064a.pdf Cook, Alison J.; Poncet, Sally; Cooper, A. Paul R.; Herbert, David; Christie, D. 2010 Glacier retreat on South Georgia and implications for the spread of rats. Antarctic Science, 22 (3). 255-263. https://doi.org/10.1017/S0954102010000064 <https://doi.org/10.1017/S0954102010000064> Glaciology Zoology Ecology and Environment Publication - Article PeerReviewed 2010 ftnerc https://doi.org/10.1017/S0954102010000064 2023-02-04T19:26:45Z Using archival photography and satellite imagery, we have analysed the rates of advance or retreat of 103 coastal glaciers on South Georgia from the 1950s to the present. Ninety-seven percent of these glaciers have retreated over the period for which observations are available. The average rate of retreat has increased from 8 Ma-1 in the 1950s to 35 Ma-1 at present. The largest retreats have all taken place along the north-east coast, where retreat rates have increased to an average of 60 Ma-1 at present, but those on the south-west coast have also been steadily retreating since the 1950s. These data, along with environmental information about South Georgia, are included in a new Geographic Information System (GIS) of the island. By combining glacier change data with the present distribution of both endemic and invasive species we have identified areas where there is an increased risk of rat invasion to unoccupied coastal regions that are currently protected by glacial barriers. This risk has significant implications for the surrounding ecosystem, in particular depletion in numbers of important breeding populations of ground-nesting birds on the island. Article in Journal/Newspaper Antarctic Science Natural Environment Research Council: NERC Open Research Archive Antarctic Science 22 3 255 263 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Glaciology Zoology Ecology and Environment |
spellingShingle |
Glaciology Zoology Ecology and Environment Cook, Alison J. Poncet, Sally Cooper, A. Paul R. Herbert, David Christie, D. Glacier retreat on South Georgia and implications for the spread of rats |
topic_facet |
Glaciology Zoology Ecology and Environment |
description |
Using archival photography and satellite imagery, we have analysed the rates of advance or retreat of 103 coastal glaciers on South Georgia from the 1950s to the present. Ninety-seven percent of these glaciers have retreated over the period for which observations are available. The average rate of retreat has increased from 8 Ma-1 in the 1950s to 35 Ma-1 at present. The largest retreats have all taken place along the north-east coast, where retreat rates have increased to an average of 60 Ma-1 at present, but those on the south-west coast have also been steadily retreating since the 1950s. These data, along with environmental information about South Georgia, are included in a new Geographic Information System (GIS) of the island. By combining glacier change data with the present distribution of both endemic and invasive species we have identified areas where there is an increased risk of rat invasion to unoccupied coastal regions that are currently protected by glacial barriers. This risk has significant implications for the surrounding ecosystem, in particular depletion in numbers of important breeding populations of ground-nesting birds on the island. |
format |
Article in Journal/Newspaper |
author |
Cook, Alison J. Poncet, Sally Cooper, A. Paul R. Herbert, David Christie, D. |
author_facet |
Cook, Alison J. Poncet, Sally Cooper, A. Paul R. Herbert, David Christie, D. |
author_sort |
Cook, Alison J. |
title |
Glacier retreat on South Georgia and implications for the spread of rats |
title_short |
Glacier retreat on South Georgia and implications for the spread of rats |
title_full |
Glacier retreat on South Georgia and implications for the spread of rats |
title_fullStr |
Glacier retreat on South Georgia and implications for the spread of rats |
title_full_unstemmed |
Glacier retreat on South Georgia and implications for the spread of rats |
title_sort |
glacier retreat on south georgia and implications for the spread of rats |
publisher |
Cambridge University Press |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/10481/ https://nora.nerc.ac.uk/id/eprint/10481/1/-ANS-ANS22_03-S0954102010000064a.pdf |
genre |
Antarctic Science |
genre_facet |
Antarctic Science |
op_relation |
https://nora.nerc.ac.uk/id/eprint/10481/1/-ANS-ANS22_03-S0954102010000064a.pdf Cook, Alison J.; Poncet, Sally; Cooper, A. Paul R.; Herbert, David; Christie, D. 2010 Glacier retreat on South Georgia and implications for the spread of rats. Antarctic Science, 22 (3). 255-263. https://doi.org/10.1017/S0954102010000064 <https://doi.org/10.1017/S0954102010000064> |
op_doi |
https://doi.org/10.1017/S0954102010000064 |
container_title |
Antarctic Science |
container_volume |
22 |
container_issue |
3 |
container_start_page |
255 |
op_container_end_page |
263 |
_version_ |
1766287232585433088 |