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...
Published in: | Antarctic Science |
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ftuhipublicatio:oai:pure.atira.dk:publications/2613a8ed-e57c-4117-9ce1-5daabc9d0337 2024-06-23T07:46:39+00:00 Glacier retreat on South Georgia and implications for the spread of rats Cook, A. J. Poncet, S. Cooper, A. P.R. Herbert, D. J. Christie, D. 2010-06-01 https://pure.uhi.ac.uk/en/publications/2613a8ed-e57c-4117-9ce1-5daabc9d0337 https://doi.org/10.1017/S0954102010000064 http://www.scopus.com/inward/record.url?scp=77954534090&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=77954534090&partnerID=8YFLogxK eng eng https://pure.uhi.ac.uk/en/publications/2613a8ed-e57c-4117-9ce1-5daabc9d0337 info:eu-repo/semantics/closedAccess Cook , A J , Poncet , S , Cooper , A P R , Herbert , D J & Christie , D 2010 , ' Glacier retreat on South Georgia and implications for the spread of rats ' , Antarctic Science , vol. 22 , no. 3 , pp. 255-263 . https://doi.org/10.1017/S0954102010000064 ecosystem GIS invasive species sub-Antarctic article 2010 ftuhipublicatio https://doi.org/10.1017/S0954102010000064 2024-05-27T23:56:27Z 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 8Ma -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 groundnesting birds on the island. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science University of the Highlands and Islands: Research Database of UHI Antarctic Antarctic Science 22 3 255 263 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
topic |
ecosystem GIS invasive species sub-Antarctic |
spellingShingle |
ecosystem GIS invasive species sub-Antarctic Cook, A. J. Poncet, S. Cooper, A. P.R. Herbert, D. J. Christie, D. Glacier retreat on South Georgia and implications for the spread of rats |
topic_facet |
ecosystem GIS invasive species sub-Antarctic |
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 8Ma -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 groundnesting birds on the island. |
format |
Article in Journal/Newspaper |
author |
Cook, A. J. Poncet, S. Cooper, A. P.R. Herbert, D. J. Christie, D. |
author_facet |
Cook, A. J. Poncet, S. Cooper, A. P.R. Herbert, D. J. Christie, D. |
author_sort |
Cook, A. 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 |
publishDate |
2010 |
url |
https://pure.uhi.ac.uk/en/publications/2613a8ed-e57c-4117-9ce1-5daabc9d0337 https://doi.org/10.1017/S0954102010000064 http://www.scopus.com/inward/record.url?scp=77954534090&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=77954534090&partnerID=8YFLogxK |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Science |
genre_facet |
Antarc* Antarctic Antarctic Science |
op_source |
Cook , A J , Poncet , S , Cooper , A P R , Herbert , D J & Christie , D 2010 , ' Glacier retreat on South Georgia and implications for the spread of rats ' , Antarctic Science , vol. 22 , no. 3 , pp. 255-263 . https://doi.org/10.1017/S0954102010000064 |
op_relation |
https://pure.uhi.ac.uk/en/publications/2613a8ed-e57c-4117-9ce1-5daabc9d0337 |
op_rights |
info:eu-repo/semantics/closedAccess |
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 |
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1802647254948904960 |