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Development of Soil Microbial Community Structure in Created and Natural Wetlands.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Development of Soil Microbial Community Structure in Created and Natural Wetlands./
Author:	Owens, Wendy A.
Description:	1 online resource (107 pages)
Notes:	Source: Masters Abstracts International, Volume: 84-02.
Contained By:	Masters Abstracts International84-02.
Subject:	Environmental science. -
Online resource:	click for full text (PQDT)
ISBN:	9798841793502

Development of Soil Microbial Community Structure in Created and Natural Wetlands.
Owens, Wendy A.

Development of Soil Microbial Community Structure in Created and Natural Wetlands. - 1 online resource (107 pages)

Source: Masters Abstracts International, Volume: 84-02.

Thesis (M.S.)--Rochester Institute of Technology, 2022.

Includes bibliographical references

Wetlands are ecologically and economically important, providing ecosystem services such as biogeochemical cycling, carbon sequestration, flood mitigation, and wildlife habitat. Many of these services are the result of the unique microbial communities found in wetlands. Degradation and destruction of wetlands, from direct human development or indirect stressors caused by climate change, pollution, or invasive species, disrupts community structure and provision of services. Although restoration has been adopted as a mechanism to counteract net loss of function, the success rate in achieving functional equivalence with natural wetlands is low. To improve wetland conservation and outcomes for wetland creation, a better understanding of biotic community structure and biotic-abiotic relationships in developing wetlands is needed. By using the metagenomic approach of 16s rRNA amplicon sequencing, we can better understand the role of microbial communities as drivers of wetland biogeochemical cycling and predict future resilience. I evaluated environmental factors and microbial community structure of young and mature back barrier salt marshes and depressional freshwater wetlands. Salt marshes are particularly vulnerable to climate change. Evaluation of amplicon data suggests an increase in diversity and functional redundancy with marsh age, but also potential for greater resilience in the Young Marsh, where sandier sediments limit waterlogging and anoxia. In created freshwater wetlands, antecedent land use and hydrology may drive soil physico-chemistry and shape microbial community structure, which is distinctly different from mature, reference wetlands. Management of soils by amending with leaf litter compost drives abiotic factors closer to a mature marsh, but at the same time results in a unique microbial community unlike either a young or mature wetland. This suggests a potential shift in function away from the desired trajectory. Evaluation of the microbial community structure provides insight into underlying wetland function and promotes development of management practices to maximize function and overall resilience.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798841793502Subjects--Topical Terms:

1179128
Environmental science.
Subjects--Index Terms:

Coastal ecosystemsIndex Terms--Genre/Form:

554714
Electronic books.

Development of Soil Microbial Community Structure in Created and Natural Wetlands.
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