Patterns in fungal community composition and decomposition

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Abstract/Contents

Abstract
Fungi play important roles in terrestrial ecosystems. Here, I perform four investigations (chapters two, three, four, and five) into variation in fungal communities and examine how this variation affects processes controlled by fungi. In chapter two, I use a natural dispersal gradient to evaluate whether a mechanism proposed to support diversity in plant communities whereby the dispersal ability of a species trades off with its competitive strength is applicable to communities of root-symbiotic fungi. I determine that such a tradeoff exists and maintains fungal diversity in my study system. In chapter three, I compare the effects of wildfire on soil fungal communities across two different ecosystem types, finding that ecosystems which are adapted to regular fire exhibit less change in their fungal communities when burned than other ecosystems. In chapter four, I combine modelling and meta-analysis to determine the effects of competition between different types of fungi on litter decomposition. I find that fungal competition has context-specific effects, with decreases in decomposition rate occurring only where recalcitrant litter chemistry allows root-symbiotic fungi to prevail against free-living decomposer fungi. In chapter five, I show that communities of wood-decay fungi have multiple qualitatively different links with wood decomposition rate, the relative strength of which are subject to the spatial scale at which systems are examined.

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 2021; ©2021
Publication date 2021; 2021
Issuance monographic
Language English

Creators/Contributors

Author Smith, Gabriel Reuben
Degree supervisor Peay, Kabir
Thesis advisor Peay, Kabir
Thesis advisor Fukami, Tadashi, 1972-
Thesis advisor Jackson, Rob
Thesis advisor Vitousek, Peter Morrison
Degree committee member Fukami, Tadashi, 1972-
Degree committee member Jackson, Rob
Degree committee member Vitousek, Peter Morrison
Associated with Stanford University, Department of Biology

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Gabriel Reuben Smith.
Note Submitted to the Department of Biology.
Thesis Thesis Ph.D. Stanford University 2021.
Location https://purl.stanford.edu/yd981nh4185

Access conditions

Copyright
© 2021 by Gabriel Reuben Smith
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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