Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems
Landscape heterogeneity impacts community assembly in animals and plants, but it is not clear if this ecological concept extends to microbes. To examine this question, we chose to investigate polar soil environments from the Antarctic and Arctic, where microbes often form the major component of biom...
Published in: | Environmental Microbiology |
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Online Access: | https://doi.org/10.1111/1462-2920.13034 http://www.ncbi.nlm.nih.gov/pubmed/26310523 http://ecite.utas.edu.au/118691 |
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ftunivtasecite:oai:ecite.utas.edu.au:118691 2023-05-15T13:49:03+02:00 Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems Ferrari, BC Bissett, A Snape, I van Dorst, J Palmer, AS Ji, M Siciliano, SD Stark, JS Winsley, T Brown, MV 2015 https://doi.org/10.1111/1462-2920.13034 http://www.ncbi.nlm.nih.gov/pubmed/26310523 http://ecite.utas.edu.au/118691 en eng Blackwell Publishing Ltd http://dx.doi.org/10.1111/1462-2920.13034 Ferrari, BC and Bissett, A and Snape, I and van Dorst, J and Palmer, AS and Ji, M and Siciliano, SD and Stark, JS and Winsley, T and Brown, MV, Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems, Environmental Microbiology, 18, (6) pp. 1834-1849. ISSN 1462-2912 (2015) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/26310523 http://ecite.utas.edu.au/118691 Biological Sciences Microbiology Microbial Ecology Refereed Article PeerReviewed 2015 ftunivtasecite https://doi.org/10.1111/1462-2920.13034 2019-12-13T22:17:57Z Landscape heterogeneity impacts community assembly in animals and plants, but it is not clear if this ecological concept extends to microbes. To examine this question, we chose to investigate polar soil environments from the Antarctic and Arctic, where microbes often form the major component of biomass. We examined soil environments that ranged in connectivity from relatively well-connected slopes to patchy, fragmented landforms that comprised isolated frost boils. We found landscape connectedness to have a significant correlation with microbial community structure and connectivity, as measured by co-occurrence networks. Soils from within fragmented landforms appeared to exhibit less local environmental heterogeneity, harboured more similar communities, but fewer biological associations than connected landforms. This effect was observed at both poles, despite the geographical distances and ecological differences between them. We suggest that microbial communities inhabiting well-connected landscape elements respond consistently to regional-scale gradients in biotic and edaphic factors. Conversely, the repeated freeze thaw cycles that characterize fragmented landscapes create barriers within the landscape and act to homogenize the soil environment within individual frost boils and consequently the microbial communities. We propose that lower microbial connectivity in the fragmented landforms is a function of smaller patch size and continual disturbances following soil mixing. Article in Journal/Newspaper Antarc* Antarctic Arctic eCite UTAS (University of Tasmania) Antarctic Arctic The Antarctic Environmental Microbiology 18 6 1834 1849 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Microbiology Microbial Ecology |
spellingShingle |
Biological Sciences Microbiology Microbial Ecology Ferrari, BC Bissett, A Snape, I van Dorst, J Palmer, AS Ji, M Siciliano, SD Stark, JS Winsley, T Brown, MV Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems |
topic_facet |
Biological Sciences Microbiology Microbial Ecology |
description |
Landscape heterogeneity impacts community assembly in animals and plants, but it is not clear if this ecological concept extends to microbes. To examine this question, we chose to investigate polar soil environments from the Antarctic and Arctic, where microbes often form the major component of biomass. We examined soil environments that ranged in connectivity from relatively well-connected slopes to patchy, fragmented landforms that comprised isolated frost boils. We found landscape connectedness to have a significant correlation with microbial community structure and connectivity, as measured by co-occurrence networks. Soils from within fragmented landforms appeared to exhibit less local environmental heterogeneity, harboured more similar communities, but fewer biological associations than connected landforms. This effect was observed at both poles, despite the geographical distances and ecological differences between them. We suggest that microbial communities inhabiting well-connected landscape elements respond consistently to regional-scale gradients in biotic and edaphic factors. Conversely, the repeated freeze thaw cycles that characterize fragmented landscapes create barriers within the landscape and act to homogenize the soil environment within individual frost boils and consequently the microbial communities. We propose that lower microbial connectivity in the fragmented landforms is a function of smaller patch size and continual disturbances following soil mixing. |
format |
Article in Journal/Newspaper |
author |
Ferrari, BC Bissett, A Snape, I van Dorst, J Palmer, AS Ji, M Siciliano, SD Stark, JS Winsley, T Brown, MV |
author_facet |
Ferrari, BC Bissett, A Snape, I van Dorst, J Palmer, AS Ji, M Siciliano, SD Stark, JS Winsley, T Brown, MV |
author_sort |
Ferrari, BC |
title |
Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems |
title_short |
Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems |
title_full |
Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems |
title_fullStr |
Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems |
title_full_unstemmed |
Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems |
title_sort |
geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems |
publisher |
Blackwell Publishing Ltd |
publishDate |
2015 |
url |
https://doi.org/10.1111/1462-2920.13034 http://www.ncbi.nlm.nih.gov/pubmed/26310523 http://ecite.utas.edu.au/118691 |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_relation |
http://dx.doi.org/10.1111/1462-2920.13034 Ferrari, BC and Bissett, A and Snape, I and van Dorst, J and Palmer, AS and Ji, M and Siciliano, SD and Stark, JS and Winsley, T and Brown, MV, Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems, Environmental Microbiology, 18, (6) pp. 1834-1849. ISSN 1462-2912 (2015) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/26310523 http://ecite.utas.edu.au/118691 |
op_doi |
https://doi.org/10.1111/1462-2920.13034 |
container_title |
Environmental Microbiology |
container_volume |
18 |
container_issue |
6 |
container_start_page |
1834 |
op_container_end_page |
1849 |
_version_ |
1766250710633021440 |