Taxon-specific analysis reveals the influence of biotic and abiotic factors on bacterial communities in Louisiana wetland soils
Presentation
Paper/Presentation Title | Taxon-specific analysis reveals the influence of biotic and abiotic factors on bacterial communities in Louisiana wetland soils |
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Presentation Type | Presentation |
Authors | Smith, McKenzie, Birnbaum, Christina, Waryszak, Pawel, Halbrook, Susannah, Brady, Monica, Bumby, Caitlin, Kulick, Danielle, Lee, Sean F.H., Schroeder, Carolyn, Wilber, William and Farrer, Emily |
Year | 2020 |
Place of Publication | United States |
Web Address (URL) of Paper | https://programarchives.z20.web.core.windows.net/2020/Paper87686.html |
Web Address (URL) of Conference Proceedings | https://programarchives.z20.web.core.windows.net/2020/ |
Conference/Event | 2020 Conference of the Ecological Society of America (ESA 2020) |
Event Details | 2020 Conference of the Ecological Society of America (ESA 2020) 104th Annual meeting of the Ecological Society of America Delivery Online Event Date 03 to end of 06 Aug 2020 Event Web Address (URL) |
Abstract | Background/Question/Methods Results/Conclusions In contrast to previous studies, vegetation type (native or invaded), salinity, and pH were not found to be significantly associated with changes in whole-community diversity. Soil phosphorus, potassium, and water depth were significantly and positively related to diversity. Constrained ordinations identified soil potassium, sodium, and nitrogen as primary drivers of community structure, though these results were statistically weak. We identified significantly more taxa associated with salinity than with vegetation type. As bacteria are considered important plant symbionts, it is surprising that a chemical feature is more broadly relevant than a major biotic feature. Despite a lack of evidence for the role of pH as a driver of community diversity, acidity was significantly related to abundance of several taxa, demonstrating that while pH may not drive community diversity at our sites, it nonetheless plays a role in shaping bacterial abundance. We found few strong relationships between environmental parameters and bacterial communities when these communities were considered as a whole. In contrast, many significant relationships do exist between the same tested parameters and specific taxa. This result highlights the distinctive nature of bacterial life and demonstrates that taxon-specific analysis is an important complement to whole-community characterization. |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 310703. Microbial ecology |
Public Notes | There are no files associated with this item. |
Byline Affiliations | Tulane University, United States |
Murdoch University |
https://research.usq.edu.au/item/z973q/taxon-specific-analysis-reveals-the-influence-of-biotic-and-abiotic-factors-on-bacterial-communities-in-louisiana-wetland-soils
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