Spatiotemporal dynamics of plant-soil-microbe interactions

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Abstract/Contents

Abstract
Understanding how communities assemble across space and time remains a fundamental ecological question. In this dissertation, I investigate how plants, soil, and microbes interact to shape the outcome of aboveground and belowground communities. To understand temporal dimensions of microbially mediated plant-soil feedback, I quantified how the strength of conspecific and heterospecific feedback changes over time in greenhouse experiments. Using molecular sequencing, I show that plant-associated microbial communities changes within a plant generation, depending on the initial microbial source. I then show that microbial community turnover between generations affects the coexistence outcomes of plant communities driven by natural gaps in growing seasons and litter decomposition. In the spatial dimension, I use spatially-explicit field data to show how plant and microbial community distribution varies in relation to soil nutrients. Using observations from forest dynamics plots, I show that mycorrhizal association drives the aggregation patterns of trees across a gradient of soil fertility, interacting with the dispersal mode of different species and age structure within each species. All together, my dissertation explores various temporal and spatial structures of plant--soil--microbe interactions and their role in shaping species diversity above- and belowground.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2023; ©2023
Publication date 2023; 2023
Issuance monographic
Language English

Creators/Contributors

Author Ou, Suzanne Xianran
Degree supervisor Daily, Gretchen
Degree supervisor Fukami, Tadashi
Thesis advisor Daily, Gretchen
Thesis advisor Fukami, Tadashi
Thesis advisor Dirzo, Rodolfo
Degree committee member Dirzo, Rodolfo
Associated with Stanford University, School of Humanities and Sciences
Associated with Stanford University, Department of Biology

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Suzanne Xianran Ou.
Note Submitted to the Department of Biology.
Thesis Thesis Ph.D. Stanford University 2023.
Location https://purl.stanford.edu/sv554xp5716

Access conditions

Copyright
© 2023 by Suzanne Xianran Ou
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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