Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic
The grass Agrostis stolonifera L. is the most successful introduced vascular plant at sub-Antarctic Marion Island. Since its accidental introduction, probably in the 1950s, it has spread over the northern half of the island, and presumably will eventually reach all parts of the island. It invades un...
Published in: | Biological Conservation |
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1998
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Online Access: | https://pure.knaw.nl/portal/en/publications/459bba3d-dfd6-4032-8129-511a2d9376de https://doi.org/10.1016/S0006-3207(97)00178-X https://hdl.handle.net/20.500.11755/459bba3d-dfd6-4032-8129-511a2d9376de |
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ftknawnlpublic:oai:pure.knaw.nl:publications/459bba3d-dfd6-4032-8129-511a2d9376de 2024-04-28T07:57:38+00:00 Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic Gremmen, N.J.M. Chown, S.L. Marshall, D.J. 1998 https://pure.knaw.nl/portal/en/publications/459bba3d-dfd6-4032-8129-511a2d9376de https://doi.org/10.1016/S0006-3207(97)00178-X https://hdl.handle.net/20.500.11755/459bba3d-dfd6-4032-8129-511a2d9376de eng eng https://pure.knaw.nl/portal/en/publications/459bba3d-dfd6-4032-8129-511a2d9376de info:eu-repo/semantics/closedAccess Gremmen , N J M , Chown , S L & Marshall , D J 1998 , ' Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic ' , Biological Conservation , vol. 85 , no. 3 , pp. 223-231 . https://doi.org/10.1016/S0006-3207(97)00178-X article 1998 ftknawnlpublic https://doi.org/10.1016/S0006-3207(97)00178-X20.500.11755/459bba3d-dfd6-4032-8129-511a2d9376de 2024-04-11T00:17:59Z The grass Agrostis stolonifera L. is the most successful introduced vascular plant at sub-Antarctic Marion Island. Since its accidental introduction, probably in the 1950s, it has spread over the northern half of the island, and presumably will eventually reach all parts of the island. It invades undisturbed native vegetation and reaches dominance in a range of habitats. It is most abundant on wet slopes and on river banks, where it replaces the rosaceous dwarf shrub Acaena magellanica communities by dense grassland. These communities show a reduction of 50% in the mean number of native plant species per sample plot, although more macroinvertebrate and more mite species were found where A. stolonifera was dominant. The invasion by A. stolonifera does not seem to pose an immediate threat to the survival of any of the native species on the island, but the changes induced in the drainage line communities significantly reduce the value of the island both from a conservation viewpoint and as a natural laboratory for fundamental ecological research. Therefore, it is important to keep Marion Island free of any further introductions. This is even more important for neighbouring Prince Edward Island, which, because of the negligible impact of aliens on this island, is of exceptional conservation value. [KEYWORDS: sub-Antarctic; introduced plants; soil fauna; species richness; conservation Nutrient dynamics; plant-communities; species richness;standing crop; biology; africa] The grass Agrostis stolonifera L. is the most successful introduced vascular plant at sub-Antarctic Marion Island. Since its accidental introduction, probably in the 1950s, it has spread over the northern half of the island, and presumably will eventually reach all parts of the island. It invades undisturbed native vegetation and reaches dominance in a range of habitats. It is most abundant on wet slopes and on river banks, where it replaces the rosaceous dwarf shrub Acaena magellanica communities by dense grassland. These communities show a ... Article in Journal/Newspaper Antarc* Antarctic Marion Island Mite Prince Edward Island KNAW: Research Explorer (Royal Netherlands Academy of Arts and Sciences) Biological Conservation 85 3 223 231 |
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Open Polar |
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KNAW: Research Explorer (Royal Netherlands Academy of Arts and Sciences) |
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ftknawnlpublic |
language |
English |
description |
The grass Agrostis stolonifera L. is the most successful introduced vascular plant at sub-Antarctic Marion Island. Since its accidental introduction, probably in the 1950s, it has spread over the northern half of the island, and presumably will eventually reach all parts of the island. It invades undisturbed native vegetation and reaches dominance in a range of habitats. It is most abundant on wet slopes and on river banks, where it replaces the rosaceous dwarf shrub Acaena magellanica communities by dense grassland. These communities show a reduction of 50% in the mean number of native plant species per sample plot, although more macroinvertebrate and more mite species were found where A. stolonifera was dominant. The invasion by A. stolonifera does not seem to pose an immediate threat to the survival of any of the native species on the island, but the changes induced in the drainage line communities significantly reduce the value of the island both from a conservation viewpoint and as a natural laboratory for fundamental ecological research. Therefore, it is important to keep Marion Island free of any further introductions. This is even more important for neighbouring Prince Edward Island, which, because of the negligible impact of aliens on this island, is of exceptional conservation value. [KEYWORDS: sub-Antarctic; introduced plants; soil fauna; species richness; conservation Nutrient dynamics; plant-communities; species richness;standing crop; biology; africa] The grass Agrostis stolonifera L. is the most successful introduced vascular plant at sub-Antarctic Marion Island. Since its accidental introduction, probably in the 1950s, it has spread over the northern half of the island, and presumably will eventually reach all parts of the island. It invades undisturbed native vegetation and reaches dominance in a range of habitats. It is most abundant on wet slopes and on river banks, where it replaces the rosaceous dwarf shrub Acaena magellanica communities by dense grassland. These communities show a ... |
format |
Article in Journal/Newspaper |
author |
Gremmen, N.J.M. Chown, S.L. Marshall, D.J. |
spellingShingle |
Gremmen, N.J.M. Chown, S.L. Marshall, D.J. Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic |
author_facet |
Gremmen, N.J.M. Chown, S.L. Marshall, D.J. |
author_sort |
Gremmen, N.J.M. |
title |
Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic |
title_short |
Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic |
title_full |
Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic |
title_fullStr |
Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic |
title_full_unstemmed |
Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic |
title_sort |
impact of the introduced grass agrostis stolonifera on vegetation and soil fauna communities at marion island, sub- antarctic |
publishDate |
1998 |
url |
https://pure.knaw.nl/portal/en/publications/459bba3d-dfd6-4032-8129-511a2d9376de https://doi.org/10.1016/S0006-3207(97)00178-X https://hdl.handle.net/20.500.11755/459bba3d-dfd6-4032-8129-511a2d9376de |
genre |
Antarc* Antarctic Marion Island Mite Prince Edward Island |
genre_facet |
Antarc* Antarctic Marion Island Mite Prince Edward Island |
op_source |
Gremmen , N J M , Chown , S L & Marshall , D J 1998 , ' Impact of the introduced grass Agrostis stolonifera on vegetation and soil fauna communities at Marion Island, sub- Antarctic ' , Biological Conservation , vol. 85 , no. 3 , pp. 223-231 . https://doi.org/10.1016/S0006-3207(97)00178-X |
op_relation |
https://pure.knaw.nl/portal/en/publications/459bba3d-dfd6-4032-8129-511a2d9376de |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/S0006-3207(97)00178-X20.500.11755/459bba3d-dfd6-4032-8129-511a2d9376de |
container_title |
Biological Conservation |
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85 |
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3 |
container_start_page |
223 |
op_container_end_page |
231 |
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1797589575966654464 |