Exposure and Nutrients As Delimiters of Lichen Communities in Continental Antarctica
Abstract Lichens dominate the terrestrial vegetation of the ice-free regions of continental Antarctica. Vegetation patterns were studied in the Windmill Islands Oasis, Wilkes Land, continental Antarctica, in relation to edaphic features to elucidate the factors that govern lichen distribution and ab...
Published in: | The Lichenologist |
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Language: | English |
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Cambridge University Press (CUP)
1995
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Online Access: | http://dx.doi.org/10.1016/s0024-2829(95)80010-7 http://api.elsevier.com/content/article/PII:S0024282995800107?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0024282995800107?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0024282995000636 |
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crcambridgeupr:10.1016/s0024-2829(95)80010-7 2024-06-09T07:40:10+00:00 Exposure and Nutrients As Delimiters of Lichen Communities in Continental Antarctica Hovenden, M.J. Seppelt, R.D. 1995 http://dx.doi.org/10.1016/s0024-2829(95)80010-7 http://api.elsevier.com/content/article/PII:S0024282995800107?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0024282995800107?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0024282995000636 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms The Lichenologist volume 27, issue 6, page 505-516 ISSN 0024-2829 1096-1135 journal-article 1995 crcambridgeupr https://doi.org/10.1016/s0024-2829(95)80010-7 2024-05-15T13:10:29Z Abstract Lichens dominate the terrestrial vegetation of the ice-free regions of continental Antarctica. Vegetation patterns were studied in the Windmill Islands Oasis, Wilkes Land, continental Antarctica, in relation to edaphic features to elucidate the factors that govern lichen distribution and abundance. Vegetation was studied on a low rounded knoll on Clark Peninsula some 3 km North East of the present Casey station. Substratum nutrient levels vary considerably across the knoll due to the presence of an abandoned penguin rookery on the crest and the uneven topography provides both sheltered and exposed sites. Along a 130 m-long transect crossing the knoll from South to North, a total of 25 species of lichen and one moss were identified, the vegetation being dominated by Umbilicaria decussata, Pseudephebe minuscula, Usnea sphacelata and U. antarctica . TWINSPAN analysis of species distributions identified six sociations, the distribution of which were related to substratum structure and chemistry. Several species were restricted to nutrient-rich zones while late-lying snow restricted all species to varying degrees. Article in Journal/Newspaper Antarc* Antarctica Wilkes Land Windmill Islands Cambridge University Press Casey Station ENVELOPE(110.528,110.528,-66.282,-66.282) Clark Peninsula ENVELOPE(110.563,110.563,-66.254,-66.254) The Knoll ENVELOPE(169.350,169.350,-77.517,-77.517) Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) Windmill Islands ENVELOPE(110.417,110.417,-66.350,-66.350) The Lichenologist 27 6 505 516 |
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Open Polar |
collection |
Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Lichens dominate the terrestrial vegetation of the ice-free regions of continental Antarctica. Vegetation patterns were studied in the Windmill Islands Oasis, Wilkes Land, continental Antarctica, in relation to edaphic features to elucidate the factors that govern lichen distribution and abundance. Vegetation was studied on a low rounded knoll on Clark Peninsula some 3 km North East of the present Casey station. Substratum nutrient levels vary considerably across the knoll due to the presence of an abandoned penguin rookery on the crest and the uneven topography provides both sheltered and exposed sites. Along a 130 m-long transect crossing the knoll from South to North, a total of 25 species of lichen and one moss were identified, the vegetation being dominated by Umbilicaria decussata, Pseudephebe minuscula, Usnea sphacelata and U. antarctica . TWINSPAN analysis of species distributions identified six sociations, the distribution of which were related to substratum structure and chemistry. Several species were restricted to nutrient-rich zones while late-lying snow restricted all species to varying degrees. |
format |
Article in Journal/Newspaper |
author |
Hovenden, M.J. Seppelt, R.D. |
spellingShingle |
Hovenden, M.J. Seppelt, R.D. Exposure and Nutrients As Delimiters of Lichen Communities in Continental Antarctica |
author_facet |
Hovenden, M.J. Seppelt, R.D. |
author_sort |
Hovenden, M.J. |
title |
Exposure and Nutrients As Delimiters of Lichen Communities in Continental Antarctica |
title_short |
Exposure and Nutrients As Delimiters of Lichen Communities in Continental Antarctica |
title_full |
Exposure and Nutrients As Delimiters of Lichen Communities in Continental Antarctica |
title_fullStr |
Exposure and Nutrients As Delimiters of Lichen Communities in Continental Antarctica |
title_full_unstemmed |
Exposure and Nutrients As Delimiters of Lichen Communities in Continental Antarctica |
title_sort |
exposure and nutrients as delimiters of lichen communities in continental antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1995 |
url |
http://dx.doi.org/10.1016/s0024-2829(95)80010-7 http://api.elsevier.com/content/article/PII:S0024282995800107?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0024282995800107?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0024282995000636 |
long_lat |
ENVELOPE(110.528,110.528,-66.282,-66.282) ENVELOPE(110.563,110.563,-66.254,-66.254) ENVELOPE(169.350,169.350,-77.517,-77.517) ENVELOPE(120.000,120.000,-69.000,-69.000) ENVELOPE(110.417,110.417,-66.350,-66.350) |
geographic |
Casey Station Clark Peninsula The Knoll Wilkes Land Windmill Islands |
geographic_facet |
Casey Station Clark Peninsula The Knoll Wilkes Land Windmill Islands |
genre |
Antarc* Antarctica Wilkes Land Windmill Islands |
genre_facet |
Antarc* Antarctica Wilkes Land Windmill Islands |
op_source |
The Lichenologist volume 27, issue 6, page 505-516 ISSN 0024-2829 1096-1135 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/s0024-2829(95)80010-7 |
container_title |
The Lichenologist |
container_volume |
27 |
container_issue |
6 |
container_start_page |
505 |
op_container_end_page |
516 |
_version_ |
1801383639582244864 |