Jonathan R. Dickey, Microbial Ecologist
![]() | ![]() | ![]() | ![]() |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
![]() | ![]() |
Areas of Interest
Microbial ecology & biogeography, Host-associated microbial communities,
Freshwater ecology, Riparian ecology, Aquatic-terrestrial linkages,
Metagenomics, Biostatistics

Jonathan R. Dickey, Ph.D
Jonathan Dickey attended The University of Texas at Austin where he completed a Bachelor of Science in Ecology, Evolution, and Behavior. After a multi-agency internship with the U.S. National Park Service and U.S. Forest Service and Bureau of Land Management, Jonathan began pursuing a Ph.D at The University of Tennessee, Knoxville in the Department of Ecology and Evolutionary Biology. There, his research investigated the small-scale distribution of plant-host associated microorganisms and the ecological factors that govern these distributions.
Currently, he is a post-doctoral scholar in the Jackrel Lab at the University of California San Diego, where he uses multi'omics strategies to investigate microbial succession and metabolism as the mechanistic links between host-microbe interactions in freshwater rivers. Further, he asks how these interactions can scale up and regulate ecosystem processes and patterns, such as the Home-Field Advantage phenomenon found in leaf litter decomposition. He also uses novel statistical approaches to analyze the effect spatiotemporal factors have on our interpretations of microbial community assembly and diversity.

Education
Fall 2017 - Spring 2022
Ph.D, The University of Tennessee Knoxville
Ecology and Evolutionary BiologyÂ
College of Arts and Sciences
Department of Ecology and Evolutionary Biology
Fordyce Lab
Fall 2010 - Spring 2014
B.S., The University of Texas at Austin
Biology: Ecology, Evolution, and Behavior
College of Natural Science
Department of Integrative Biology

Recent Publications
For a full list of publications (accepted, in review, in prep) please visit my Curriculum Vitae linked above, top right
Host identity drives the assembly of diatom microbiomes across a continental scale environmental gradient.
ISME Journal, 2025
PS White., TY. Broe, MCM. Kuijpers, JR. Dickey, and SL. Jackrel.
Biodiversity within phytoplankton-associated microbiomes regulates host physiology, host community ecology, and nutrient cycling.
mSystems, 2025
Jonathan R. Dickey, Nikki M. Mercer, Mirte C. M. Kujipers, Ruben Props, and Sara L. Jackrel
Arbuscular mycorrhizal fungal communities vary as a response to short-term rainfall exclusion in the Sonoran Desert
Elementa: Science of the Anthropocene, 2024.
Jonathan R. Dickey and James A. Fordyce
The utility of macroecological rules for microbial biogeography
Fronteirs in Ecology and Evolution, 2021
Jonathan R. Dickey, Rachel Swenie, Claire Winfrey, Sophia Turner, Daniela Yaffar, Kimberly Sheldon, and Stephanie Kivlin
Bacterial communities of the rhizosphere explained by spatial structure and sampling grain
Journal of Microbial Ecology, 2020
Jonathan R. Dickey, James A. Fordyce, and Sarah L. Lebeis

Professional Appointments
Post-Doctoral Scholar
The University of California San Diego
School of Biological Sciences
Department of Ecology, Behavior, and Evolution, Jackrel Lab
National Institutes of Health, Principal Investigator: Dr. Sara Jackrel
Instructor on Record
The University of Tennessee, Knoxville
Department of Ecology and Evolutionary Biology
Field Based Ecology Laboratory, Introductory Plant Biology Laboratory
Research Assistant
The University of Tennessee Knoxville, Fordyce Laboratory
The National Science Foundation, Division of Environmental Biology Dimensions of Biodiversity Grant (~$43,375)
Principal Investigators: Drs. James A. Fordyce & Sarah L. Lebeis
Teaching Assistant
The University of Tennessee, Knoxville
Department of Ecology and Evolutionary Biology
Biostatistics, Introduction to Plant Biology, Organismal and Ecological Biology, Biological Literacy

Outreach/Service
For an updated Outreach/Service experience list, please visit my C.V.
Dean's Woods Clean Up
2017-2022
The University of Tennesee Knoxville, Knoxville, Tennessee:Â Invasive species removal
Verde Valley School
February 2017
Chiricahua National Monument Arizona: Conservation education and outreach, seed collection and restoration
Sky Island Alliance
Fall 2016
Gila Cliff Dwellings National Monument New Mexico: Restoration
​
Powers Garden, Galiuros Mountains, Arizona: Voucher herbarium collection, natural spring assessments, education
Let's Connect
The University of California San Diego
School of Biological Sciences
9500 Gilman Drive
La Jolla, California 92093
