The biodiversity and ecology of Antarctic lakes: models for evolution
Antarctic lakes are characterised by simplified, truncated food webs. The lakes range from freshwater to hypersaline with a continuum of physical and chemical conditions that offer a natural laboratory in which to study evolution. Molecular studies on Antarctic lake communities are still in their in...
Published in: | Philosophical Transactions of the Royal Society B: Biological Sciences |
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crroyalsociety:10.1098/rstb.2006.1945 2024-06-23T07:47:02+00:00 The biodiversity and ecology of Antarctic lakes: models for evolution Laybourn-Parry, Johanna Pearce, David A 2007 http://dx.doi.org/10.1098/rstb.2006.1945 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2006.1945 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2006.1945 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society B: Biological Sciences volume 362, issue 1488, page 2273-2289 ISSN 0962-8436 1471-2970 journal-article 2007 crroyalsociety https://doi.org/10.1098/rstb.2006.1945 2024-06-04T06:23:01Z Antarctic lakes are characterised by simplified, truncated food webs. The lakes range from freshwater to hypersaline with a continuum of physical and chemical conditions that offer a natural laboratory in which to study evolution. Molecular studies on Antarctic lake communities are still in their infancy, but there is clear evidence from some taxonomic groups, for example the Cyanobacteria, that there is endemicity. Moreover, many of the bacteria have considerable potential as sources of novel biochemicals such as low temperature enzymes and anti-freeze proteins. Among the eukaryotic organisms survival strategies have evolved, among which dependence on mixotrophy in phytoflagellates and some ciliates is common. There is also some evidence of evolution of new species of flagellate in the marine derived saline lakes of the Vestfold Hills. Recent work on viruses in polar lakes demonstrates high abundance and high rates of infection, implying that they may play an important role in genetic exchange in these extreme environments. Article in Journal/Newspaper Antarc* Antarctic The Royal Society Antarctic Vestfold Vestfold Hills Philosophical Transactions of the Royal Society B: Biological Sciences 362 1488 2273 2289 |
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Open Polar |
collection |
The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
description |
Antarctic lakes are characterised by simplified, truncated food webs. The lakes range from freshwater to hypersaline with a continuum of physical and chemical conditions that offer a natural laboratory in which to study evolution. Molecular studies on Antarctic lake communities are still in their infancy, but there is clear evidence from some taxonomic groups, for example the Cyanobacteria, that there is endemicity. Moreover, many of the bacteria have considerable potential as sources of novel biochemicals such as low temperature enzymes and anti-freeze proteins. Among the eukaryotic organisms survival strategies have evolved, among which dependence on mixotrophy in phytoflagellates and some ciliates is common. There is also some evidence of evolution of new species of flagellate in the marine derived saline lakes of the Vestfold Hills. Recent work on viruses in polar lakes demonstrates high abundance and high rates of infection, implying that they may play an important role in genetic exchange in these extreme environments. |
format |
Article in Journal/Newspaper |
author |
Laybourn-Parry, Johanna Pearce, David A |
spellingShingle |
Laybourn-Parry, Johanna Pearce, David A The biodiversity and ecology of Antarctic lakes: models for evolution |
author_facet |
Laybourn-Parry, Johanna Pearce, David A |
author_sort |
Laybourn-Parry, Johanna |
title |
The biodiversity and ecology of Antarctic lakes: models for evolution |
title_short |
The biodiversity and ecology of Antarctic lakes: models for evolution |
title_full |
The biodiversity and ecology of Antarctic lakes: models for evolution |
title_fullStr |
The biodiversity and ecology of Antarctic lakes: models for evolution |
title_full_unstemmed |
The biodiversity and ecology of Antarctic lakes: models for evolution |
title_sort |
biodiversity and ecology of antarctic lakes: models for evolution |
publisher |
The Royal Society |
publishDate |
2007 |
url |
http://dx.doi.org/10.1098/rstb.2006.1945 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2006.1945 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2006.1945 |
geographic |
Antarctic Vestfold Vestfold Hills |
geographic_facet |
Antarctic Vestfold Vestfold Hills |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Philosophical Transactions of the Royal Society B: Biological Sciences volume 362, issue 1488, page 2273-2289 ISSN 0962-8436 1471-2970 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rstb.2006.1945 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
container_volume |
362 |
container_issue |
1488 |
container_start_page |
2273 |
op_container_end_page |
2289 |
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1802650276797087744 |