IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica
Herbold, C.W.; Lee, C.K.; McDonald, I.R.; Cary, S.C. (2014). Evidence of global-scale aeolian dispersal and endemism in isolated geothermal microbial communities of Antarctica. Nature Comm. 5. hdl.handle.net/10.1038/ncomms4875
In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723, more
Peer reviewed article  

Available in  Authors | Dataset 

Authors  Top | Dataset 
  • Herbold, C.W.
  • Lee, C.K.
  • McDonald, I.R.
  • Cary, S.C.

Abstract
    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. Here we use molecular genetic approaches to examine microbial communities inhabiting fumarolic soils on Mount Erebus, the southernmost geothermal site on Earth, to evaluate the ecological significance of global-scale microbial dispersal. 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.

Dataset
  • Geothermal Fumarole Subsurface Mt. Erebus, Antarctica, more

All data in IMIS is subject to the VLIZ privacy policy Top | Authors | Dataset