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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ftpubmed:oai:pubmedcentral.nih.gov:2443172 2023-05-15T13:45:16+02:00 The biodiversity and ecology of Antarctic lakes: models for evolution Laybourn-Parry, Johanna Pearce, David A 2007-05-21 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2443172 http://www.ncbi.nlm.nih.gov/pubmed/17553775 https://doi.org/10.1098/rstb.2006.1945 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2443172 http://www.ncbi.nlm.nih.gov/pubmed/17553775 http://dx.doi.org/10.1098/rstb.2006.1945 © 2007 The Royal Society Research Article Text 2007 ftpubmed https://doi.org/10.1098/rstb.2006.1945 2013-09-02T01:06:52Z 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. Text Antarc* Antarctic PubMed Central (PMC) Antarctic Vestfold Vestfold Hills Philosophical Transactions of the Royal Society B: Biological Sciences 362 1488 2273 2289 |
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English |
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Research Article |
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Research Article Laybourn-Parry, Johanna Pearce, David A The biodiversity and ecology of Antarctic lakes: models for evolution |
topic_facet |
Research Article |
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 |
Text |
author |
Laybourn-Parry, Johanna Pearce, David A |
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://www.ncbi.nlm.nih.gov/pmc/articles/PMC2443172 http://www.ncbi.nlm.nih.gov/pubmed/17553775 https://doi.org/10.1098/rstb.2006.1945 |
geographic |
Antarctic Vestfold Vestfold Hills |
geographic_facet |
Antarctic Vestfold Vestfold Hills |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2443172 http://www.ncbi.nlm.nih.gov/pubmed/17553775 http://dx.doi.org/10.1098/rstb.2006.1945 |
op_rights |
© 2007 The Royal Society |
op_doi |
https://doi.org/10.1098/rstb.2006.1945 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
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362 |
container_issue |
1488 |
container_start_page |
2273 |
op_container_end_page |
2289 |
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1766217942890971136 |