Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica
New evidence in aerobiology challenges the assumption that geographical isolation is an effective barrier to microbial transport. However, given the uncertainty with which aerobiological organisms are recruited into existing communities, the ultimate impact of microbial dispersal is difficult to ass...
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ftunivwaikato:oai:researchcommons.waikato.ac.nz:10289/9399 2024-02-11T09:57:27+01:00 Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica Herbold, Craig W. Lee, Charles Kai-Wu McDonald, Ian R. Cary, S. Craig England 2014-05-01 application/pdf https://hdl.handle.net/10289/9399 https://doi.org/10.1038/ncomms4875 en eng NATURE PUBLISHING GROUP NATURE COMMUNICATIONS Herbold, C. W., Lee, C. K.-W., McDonald, I. R., & Cary, S. C. (2014). Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica. NATURE COMMUNICATIONS, 5. http://doi.org/10.1038/ncomms4875 2041-1723 https://hdl.handle.net/10289/9399 doi:10.1038/ncomms4875 © 2014 Nature Publishing Group.This is an author's accepted version of an article published in Nature Communications. Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics RIBOSOMAL-RNA GENES CYANOBACTERIUM MASTIGOCLADUS-LAMINOSUS NORTHERN VICTORIA-LAND MOUNT EREBUS HOT-SPRINGS DIFFERENT ECOSYSTEMS MT EREBUS BACTERIA MICROORGANISMS SOIL Journal Article 2014 ftunivwaikato https://doi.org/10.1038/ncomms4875 2024-01-23T18:25:26Z New evidence in aerobiology challenges the assumption that geographical isolation is an effective barrier to microbial transport. However, given the uncertainty with which aerobiological organisms are recruited into existing communities, the ultimate impact of microbial dispersal is difficult to assess. To evaluate the ecological significance of global-scale microbial dispersal, molecular genetic approaches were used to examine microbial communities inhabiting fumarolic soils on Mt. Erebus, the southernmost geothermal site on Earth. There, hot, fumarolic soils provide an effective environmental filter to test the viability of organisms that have been distributed via aeolian transport over geological time. We find that cosmopolitan thermophiles dominate the surface, whereas endemic Archaea and members of poorly understood Bacterial candidate divisions dominate the immediate subsurface. These results imply that aeolian processes readily disperse viable organisms globally, where they are incorporated into pre-existing complex communities of endemic and cosmopolitan taxa. Article in Journal/Newspaper Antarc* Antarctica Victoria Land The University of Waikato: Research Commons Mount Erebus ENVELOPE(167.167,167.167,-77.533,-77.533) Victoria Land Nature Communications 5 1 |
institution |
Open Polar |
collection |
The University of Waikato: Research Commons |
op_collection_id |
ftunivwaikato |
language |
English |
topic |
Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics RIBOSOMAL-RNA GENES CYANOBACTERIUM MASTIGOCLADUS-LAMINOSUS NORTHERN VICTORIA-LAND MOUNT EREBUS HOT-SPRINGS DIFFERENT ECOSYSTEMS MT EREBUS BACTERIA MICROORGANISMS SOIL |
spellingShingle |
Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics RIBOSOMAL-RNA GENES CYANOBACTERIUM MASTIGOCLADUS-LAMINOSUS NORTHERN VICTORIA-LAND MOUNT EREBUS HOT-SPRINGS DIFFERENT ECOSYSTEMS MT EREBUS BACTERIA MICROORGANISMS SOIL Herbold, Craig W. Lee, Charles Kai-Wu McDonald, Ian R. Cary, S. Craig Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica |
topic_facet |
Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics RIBOSOMAL-RNA GENES CYANOBACTERIUM MASTIGOCLADUS-LAMINOSUS NORTHERN VICTORIA-LAND MOUNT EREBUS HOT-SPRINGS DIFFERENT ECOSYSTEMS MT EREBUS BACTERIA MICROORGANISMS SOIL |
description |
New evidence in aerobiology challenges the assumption that geographical isolation is an effective barrier to microbial transport. However, given the uncertainty with which aerobiological organisms are recruited into existing communities, the ultimate impact of microbial dispersal is difficult to assess. To evaluate the ecological significance of global-scale microbial dispersal, molecular genetic approaches were used to examine microbial communities inhabiting fumarolic soils on Mt. Erebus, the southernmost geothermal site on Earth. There, hot, fumarolic soils provide an effective environmental filter to test the viability of organisms that have been distributed via aeolian transport over geological time. We find that cosmopolitan thermophiles dominate the surface, whereas endemic Archaea and members of poorly understood Bacterial candidate divisions dominate the immediate subsurface. These results imply that aeolian processes readily disperse viable organisms globally, where they are incorporated into pre-existing complex communities of endemic and cosmopolitan taxa. |
format |
Article in Journal/Newspaper |
author |
Herbold, Craig W. Lee, Charles Kai-Wu McDonald, Ian R. Cary, S. Craig |
author_facet |
Herbold, Craig W. Lee, Charles Kai-Wu McDonald, Ian R. Cary, S. Craig |
author_sort |
Herbold, Craig W. |
title |
Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica |
title_short |
Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica |
title_full |
Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica |
title_fullStr |
Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica |
title_full_unstemmed |
Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica |
title_sort |
evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of antarctica |
publisher |
NATURE PUBLISHING GROUP |
publishDate |
2014 |
url |
https://hdl.handle.net/10289/9399 https://doi.org/10.1038/ncomms4875 |
op_coverage |
England |
long_lat |
ENVELOPE(167.167,167.167,-77.533,-77.533) |
geographic |
Mount Erebus Victoria Land |
geographic_facet |
Mount Erebus Victoria Land |
genre |
Antarc* Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica Victoria Land |
op_relation |
NATURE COMMUNICATIONS Herbold, C. W., Lee, C. K.-W., McDonald, I. R., & Cary, S. C. (2014). Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica. NATURE COMMUNICATIONS, 5. http://doi.org/10.1038/ncomms4875 2041-1723 https://hdl.handle.net/10289/9399 doi:10.1038/ncomms4875 |
op_rights |
© 2014 Nature Publishing Group.This is an author's accepted version of an article published in Nature Communications. |
op_doi |
https://doi.org/10.1038/ncomms4875 |
container_title |
Nature Communications |
container_volume |
5 |
container_issue |
1 |
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1790609743751938048 |