Who We Are

Faculty

Bruce Hungate
Director, Regents' Professor of Ecosystem Science, and McAllister Chair in Community, Culture, and Environment
Global change
Microbial ecology
Email: Bruce.Hungate@nau.edu
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George Koch
Associate Director and Professor in Ecosystem Science
Physiological ecology
Global change biology
Email: George.Koch@nau.edu
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Yiqi Luo
Professor in Ecosystem Science
Ecosystem ecology
Carbon and nitrogen cycles
Ecological modeling
Earth system science
Email: yiqi.luo@nau.edu
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Michelle Mack
Professor in Ecosystem Science
Ecosystem and community ecology
Plant-soil microbe interactions
Email: Michelle.Mack@nau.edu
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Jane Marks
Professor in Biological Sciences
Aquatic Ecology
Freshwater food webs
Ecosystems
Email: Jane.Marks@nau.edu
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Andrew Richardson
Regents' Professor, ECOSS/SICCS
Terrestrial ecosystems
Global change
Biosphere-atmosphere interactions and Phenology
Email: Andrew.Richardson@nau.edu
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Ted Schuur
Professor in Ecosystem Science
Feedback from terrestrial ecosystems to climate change
Arctic ecosystems
Email: Ted.Schuur@nau.edu
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Egbert Schwartz
Professor and Director of the Laboratory for Isotope, Molecular, and Ecosystem Science
Microbial ecology
Bioremediation
Ecosystem ecology
Email: Egbert.Schwartz@nau.edu
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Paul Dijkstra
Research Professor
Climate change effects on terrestrial ecosystems
Applications of stable isotopes on C and N cycling processes
Email: Paul.Dijkstra@nau.edu
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Brad Butterfield
Associate Research Professor
Plant ecology
Biodiversity and ecosystem functioning
Dryland ecosystems
Email: Bradley.Butterfield@nau.edu
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Mariah Carbone
Assistant Research Professor
Earth system science
Terrestrial carbon cycling
Isotopes (especially 14C)
Email: mariah.carbone@nau.edu
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Karen Haubensak
Assistant Research Professor
Invasions
Restoration
Soil-plant feedbacks
Nutrient dynamics
Mycorrhizal mutualisms
Species interactions
Local adaptation
Email: karen.haubensak@nau.edu
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Christina Schädel
Assistant Research Professor
Global carbon cycle
Permafrost carbon
plant phenology
Email: Christina.Schaedel@nau.edu
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Christopher Schwalm
Assistant Research Professor
Global change ecology
Earth system modeling
Terrestrial biogeochemistry
Machine learning in the biogeosciences
Email: christopher.schwalm@nau.edu
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Xanthe Walker
Assistant Research Professor
Wildfire disturbance
Email: xanthe.walker@nau.edu
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Affiliated Faculty

Greg Caporaso
Affiliated Faculty, Associate Professor/Director of the The Pathogen & Microbiome Institute
Microbial ecology
Micro-organisms in human health and disease
Software development
Email: GregCaporaso@gmail.com
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Scott Goetz
Affiliated Faculty, Professor at Northern Arizona University
Environmental informatics
Carbon cycle science
Climate change and terrestrial ecology
Email: Scott.Goetz@nau.edu
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Deborah N. Huntzinger
Affiliated Faculty/Associate Professor, Climate Sciences
Climate change
Terrestrial carbon cycling
Carbon capture and storage
Email: deborah.huntzinger@nau.edu
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Cindy Liu
Affiliated Faculty, Chief Medical Officer of Antibiotic Resistance Action Center and an Assistant Research Professor
Microbial ecology
Molecular epidemiology
Antibiotic resistance
Antimicrobial stewardship
Email: cindyliu@email.gwu.edu
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Kiona Ogle
Affiliated Faculty/Professor, Informatics and Computing Program
Ecological synthesis and analysis
Bayesian applications in ecology
Plant and ecosystem ecology
Email: Kiona.Ogle@nau.edu
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Lance Price
Affiliated Faculty, Professor at the George Washington University’s Milken Institute School of Public Health
Antibiotic resistance
Food-animal production
Antibiotic stewardship
E. coli and Superbugs
Email: lprice@email.gwu.edu
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Benjamin Ruddell
Affiliated Faculty, Associate Professor, School of Informatics, Computing, and Cyber Systems
Ecohydrology
Information theory
Land-atmosphere CWEN exchange
Urban and CNH ecology
Email: Benjamin.Ruddell@nau.edu
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Robert L. Sanford, Jr. (Buck)
Affiliated Faculty/Professor, Earth Sciences and Environmental Sustainability
Biogeochemistry of alpine
tropical and dryland ecosystems
Paleoecology/land use history
Email: Robert.Sanford@nau.edu
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Administration

Brian Marbury
Interim Manager
Administration
Email: Brian.Marbury@nau.edu
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Stephanie Mayer
Program Coordinator, Sr.
Administration
Events and Conferences
Public Policy
Email: stephanie.mayer@nau.edu
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Sally Evans
Administrative Consultant
Email: Sally.Evans@nau.edu
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Research Staff

Jamie Brown
Research Associate Senior, Colorado Plateau Stable Isotope Laboratory
Production and consumption of greenhouse gases by microorganisms
Email: Jamie.Brown@nau.edu
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Chris Ebert
Assistant Director, Interactive Data Visualization
Radiocarbon
Global carbon cycle
Climate change
Email: Christopher.Ebert@nau.edu
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Michaela Hayer
Research Associate Senior
Microbial Ecology
Email: Michaela.Hayer@nau.edu
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Lifen Jiang
Research Associate
Ecosystem ecology
Biogeochemistry
Global change
Email: Lifen.Jiang@nau.edu
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Benjamin Koch
Research Associate Senior
Stream and river ecology
Email: Ben.Koch@nau.edu
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Jim Le Moine
Research Staff
Terrestrial ecosystems
Tree physiology
Isotopes
Email: Jim.Le.Moine@nau.edu
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Victor Leshyk
Senior Coordinator for Artistic Interpretation of Research Discoveries
Illustrating science
life and all things between
Email: victorleshyk@esedona.net
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Samantha Miller
Research Coordinator
Ecosystem ecology
Email: Samantha.Miller@nau.edu
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Kate Petersen
Coordinator
Email:
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Jeff Propster
Research Specialist
Soil ecology
Nutrient cycling
Analytics
Email: jrp277@nau.edu
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Postdoctoral Scientists

Eric Beamesderfer
Postdoctoral Scientist
Forest-atmosphere interactions
boundary-layer meteorology
phenology
eddy covariance
Email: eric.beamesderfer@nau.edu
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Katharyn A. Duffy
Postdoctoral Scientist
Deep learning applications in Earth science
Web application development
Temperature dependence of Earth system processes
Email: katharyn.duffy@nau.edu
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Enqing Hou
Postdoctoral Scientist
Soil phosphorus dynamics and availability
Nutrient stoichiometry
Forest ecosystem
Climate
Email: enqing.hou@nau.edu
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Drew Peltier
Postdoctoral Scientist
Dendroecology
Drought legacies
Radiocarbon
Non-structural carbohydrates
Hierarchical Bayesian statistics
Email: drew.peltier@nau.edu
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Tim Rademacher
Postdoctoral Scientist
Terrestrial plant ecosystem eco-physiology
Email: tim.rademacher@nau.edu
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Jon M. Wells
Postdoctoral Scientist
Earth system modeling
Data-model integration
Bioenergy production
Email: Jon.Wells@nau.edu
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Adam M. Young
Postdoctoral Scientist
Phenology and climate change
Land-atmosphere interactions
Fire ecology
Arctic and boreal forest ecology
Geospatial analysis and statistical modelling
Email:
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Graduate Students

Keanan Allen
Graduate Student
Soil carbon
Nutrient cycle modeling
Microbes
Email: kta48@nau.edu
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Kathleen Balazs
Graduate Student
Restoration ecology
Plant functional traits
Plant community ecology
Drylands
Email: krb453@nau.edu
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Tatia Bauer
Graduate Student
Applied restoration ecology
Plant-pollinator interactions
Email: tab487@nau.edu
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Shelby Byerly
Graduate Student
Community ecology
Plant water relations
Drylands
Email: sb2863@nau.edu
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Pete Chuckran
Graduate Student
Metatranscriptomics
Soil biogeochemistry
Metagenomics
Email: Pfc25@nau.edu
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Haley Dunleavy
Graduate Student
Vegetational shifts in tundra ecosystems
Plant-soil interactions
Email: hd255@nau.edu
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Raina Fitzpatrick
Graduate Student
Biogeochemistry; Elemental cycling; Microbes
Email: rmf273@nau.edu
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Megan Foley
Graduate Student
Microbes
Ecosystems
Biogeochemistry
Email: mmf289@nau.edu
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Yuan Gao
Graduate Student
Ecosystem modeling
Carbon dynamics
Email:
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Haydee Hampton
NASA Space and Earth Science Fellow Research Associate, Biology, Graduate Student
Global change
Microbial ecology
Email: Haydee.Hampton@nau.edu
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Xin Huang
Graduate Student
Traceability analysis
Sensitivity analysis
Ensemble prediction
Email: xh59@nau.edu
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Brian Izbicki
Graduate Student
Fire ecology
Carbon dynamics
Forest ecology
Email: bi67@nau.edu
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Stephanie Kadej
Graduate Student
Plant ecology
Carbon cycling
Arctic ecology
Email: sk2258@nau.edu
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Lauren Kemper
Graduate Student
Forest ecology
Fire ecology
Climate change
Email: lk457@nau.edu
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Hannah Lee
Plant ecology
Ecological restoration
Local adaptation
Email: HL528@nau.edu
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Ayla Martinez
Graduate Student
Soil microbial metabolism
Metabolic flux
Soil biochemistry
Anaerobic metabolism
Email: am2725@nau.edu
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Victoria Monsaint-Queeney
Graduate Student
Climate change
Soil microbial ecology
Carbon cycling
Permafrost thaw
qSIP
Email: vlm92@nau.edu
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Callie Ochs
Graduate Student
Stream ecology
Leaf litter decomposition
Fungi
Email: hco9@nau.edu
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Alicia Purcell
Graduate Student
Soil microbial ecology
Microbial biogeography
Quantifying soil microbe function
Email: amp753@nau.edu
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Heidi Rodenhizer
Graduate Student
Remote sensing techniques
Spatial patterns of permafrost carbon dynamics
Email: hgr7@nau.edu
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Taylor Sheriff
Graduate Student
Tree physiology
Dendroecology
Xylem plasticity
Email: ts976@nau.edu
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Julia Stuart
Graduate Student
Biogeochemistry
Boreal and arctic ecosystems
Peatlands
Email: jms2435@nau.edu
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Aaron Teets
Graduate Student
Forest ecology
Dendrochronology
Eddy covariance
Cabon dynamics
Phenology
Climate drivers
Email: aft49@nau.edu
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Caitlin Winterbottom
Graduate Student
Pollination biology
Community ecology
Flowering phenology
Plant-animal interactions
Email: caw442@nau.edu
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Mike Zampini
Graduate Student
Freshwater Ecology
Elemental Flux
Food Web Dynamics
Email: mcz39@nau.edu
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Alumni

Caroline Havrilla
Plant ecology
Soil ecology
Dryland ecosystems
caroline.havrilla@nau.edu
Bri Finley
Nutrient cycling in terrestrial systems
Climate change
Greenhouse gas emissions
bkf24@nau.edu
Anthony John Garnello
Arctic ecology
Ecosystem ecology
Remote sensing
ajg262@nau.edu
Bijan Seyednasrollah
Global environmental change
Hierarchical Bayesian statistics
Energy transfer of terrestrial ecosystems
bijan.seyednasrollah@nau.edu
Alisyn Martinez
Rates and pathways of elemental loss through leaf litter
Stable isotopes
Stream warming
abm3@nau.edu
Kyoko Okano
Fire ecology
Boreal forest
Plant ecology
Climate change
ko468@nau.edu
Elaine Furlan Pegoraro
Permafrost soils in tundra ecosystems
Carbon cycle responses to warming temperatures
efp23@nau.edu
Tyler Roberts
Ecology
Restoration
Intraspecific variation
trr86@nau.edu
Paul Roman
Carbon cycling
Soil respiration
Carbon pools in plant communities
pr446@nau.edu
Courtney Roush
Freshwater ecology
Foodwebs
cmr627@nau.edu
Austin Rueda
Plant ecophysiology
Grassland communities
Precipitation variation
ajr376@nau.edu
Meghan Schrik
Freshwater ecology
Water quality
ms3398@nau.edu
Jack Torresdal
Endangered species
Conservation
Sky-islands
Stream ecology
jdt292@nau.edu
Bram Stone
Quantitative microbial ecology
Soil carbon flux
Plant microbiomes
Bram.Stone@nau.edu
Rebecca Hewitt
Arctic plant ecology
rebecca.hewitt@nau.edu
Joseph C. Blankinship
jblankinship@email.arizona.edu
Melissa Boyd
mab834@nau.edu
Mélanie Caron
Melanie.Caron@nau.edu
Gerardo Celis
Restoration ecology
Interactive data visualization
Climate change
Gerardo.Celis@nau.edu
Zacchaeus Compson
Zacchaeus.Compson@unb.ca
Benjamin D. Duval
Benjamin.duval@nmt.edu
Melissa Enright
Plant ecophysiology
Canopy science
Forest ecology
me656@nau.edu
Dawson Fairbanks
dawsonfairbanks@email.arizona.edu
Rebecca Fritz
Freshwater ecology & foodwebs
Native fish restoration
Fishery monitoring
Microbial ecology
rjf227@nau.edu
Shannon Hagerty
shannon.hagerty@lifesci.ucsb.edu
Kristyn Hill
Permafrost and carbon dynamics
paleoclimate
Arctic climate change.
kh2285@nau.edu
Brian Howard
bh679@nau.edu
Lindsey Jacobs
Microbes
Ecology
Environment
llj46@nau.edu
Michele James
Graphic design
Website design
Innovative ways to communicate science
Michele.James@nau.edu
Briana Jasinski
Permafrost thaw
Ecosystem shifts
Global change
blj92@nau.edu
Chang Gyo Jung
Experimental ecology
Climate change
Carbon cycle
cgjung86@nau.edu
Nicholas Kainrath
Plant ecology
Soil microbial ecology
Arid land restoration
Nicholas.Kainrath@nau.edu
Christopher Kaiser
Understanding the relationships between microbes
their metabolic water
and their environment
Sagebrush restoration
Christopher.Kaiser@nau.edu
Adam Langley
adam.langley@villanova.edu
Junhui Li
Microbial ecology
Carbon cycling
Climate change
Pollutant degradation
junhui.li@nau.edu
Guopeng Liang
Global change ecology
Ecosystem modelling
guopliang@nau.edu
Xiao-Jun Allen Liu
Soil microbial ecology
Biogeochemistry
Global climate change
xj.allen.liu@gmail.com
Xingjie (Chris) Lu
Global carbon cycle
Carbon cycle modeling
Data assimilation
Xingjie.lu@nau.edu
Shuang (YoYo) Ma
Terrestrial biogeochemistry
Earth system modeling
sm3323@nau.edu
Rebecca Mau
Microbial ecology
Rebecca.Mau@nau.edu
Marguerite Mauritz
Permafrost soils in tundra ecosystems
Carbon balance responses to warming arctic ecosystems
Marguerite.Mauritz@nau.edu
Theresa McHugh
tmchugh@coloradomesa.edu
Anya Metcalfe
Stream ecology
Aquatic insect emergence
af678@nau.edu
Taryn Morris
tarynleemorris@gmail.com
Ember Morrissey
ember.morrissey@mail.wvu.edu
César Plaza
Global carbon cycle
Chemistry of soil organic matter
Analytical chemistry and spectroscopy
cesar.plaza@csic.es
Aradhana Roberts
Aradhana.Roberts@nau.edu
Emily Romano
Permafrost thaw in tundra ecosystems
Carbon dynamics of the Arctic
elr88@nau.edu
Rachel Rubin
Extreme environments
Global change
Field botany
rlr276@nau.edu
Volodymyr Saruta
Grasslands
Modeling
Carbon Cycle
vsaruta@nau.edu
Alexa Schuettenberg
Freshwater microbial communities
aas322@nau.edu
Adam Siders
Structure and function of aquatic ecosystems
acs427@nau.edu
Katerina Soldanova
Soil microbial communities
katerina.papp@unlv.edu
Meghan Taylor
Biogeochemistry and carbon cycling
Meghan.Taylor@nau.edu
Maria Galvez
Finance and Administration
Maria.Galvez@nau.edu
Natasja van Gestel
Global Change Ecology
Biogeochemistry
natasja.van-gestel@ttu.edu
Kees Jan van Groenigen
Global carbon cycle
Soil microbiology
Ecological synthesis
kj.vangroenigen@exeter.ac.uk
Robert Woodruff
Microbial ecology
Climate change
Isotopic analysis
rdw62@nau.edu
Alessandra Zuniga
Soil microbial ecology
Decomposition/nutrient dynamics
Climate change
az336@nau.edu

Latest Publications

Hungate BA and Marks JC (2021) Biology at the macrosystem scale. Frontiers in Ecology and the Environment 19(1): 3-3.

Read Publication

Duffy KA, Schwalm CR, Arcus VL, Koch GW, Liang LL, Schipper LA (2021) How close are we to the temperature tipping point of the terrestrial biosphere?. Science Advances 7(3):eaay1052.

Read Abstract / Read Publication

Who We Are

Faculty

Director, Regents' Professor of Ecosystem Science, and McAllister Chair in Community, Culture, and Environment

Global change Microbial ecology

Associate Director and Professor in Ecosystem Science

Physiological ecology Global change biology

Professor in Ecosystem Science

Ecosystem ecology Carbon and nitrogen cycles Ecological modeling Earth system science

Professor in Ecosystem Science

Ecosystem and community ecology Plant-soil microbe interactions

Professor in Biological Sciences

Aquatic Ecology Freshwater food webs Ecosystems

Regents' Professor, ECOSS/SICCS

Terrestrial ecosystems Global change Biosphere-atmosphere interactions and Phenology

Professor in Ecosystem Science

Feedback from terrestrial ecosystems to climate change Arctic ecosystems

Professor and Director of the Laboratory for Isotope, Molecular, and Ecosystem Science

Microbial ecology Bioremediation Ecosystem ecology

Research Professor

Climate change effects on terrestrial ecosystems Applications of stable isotopes on C and N cycling processes

Associate Research Professor

Plant ecology Biodiversity and ecosystem functioning Dryland ecosystems

Assistant Research Professor

Earth system science Terrestrial carbon cycling Isotopes (especially 14C)

Assistant Research Professor

Invasions Restoration Soil-plant feedbacks Nutrient dynamics Mycorrhizal mutualisms Species interactions Local adaptation

Assistant Research Professor

Global carbon cycle Permafrost carbon plant phenology

Assistant Research Professor

Global change ecology Earth system modeling Terrestrial biogeochemistry Machine learning in the biogeosciences

Assistant Research Professor

Wildfire disturbance

Affiliated Faculty

Affiliated Faculty, Associate Professor/Director of the The Pathogen & Microbiome Institute

Microbial ecology Micro-organisms in human health and disease Software development

Affiliated Faculty, Professor at Northern Arizona University

Environmental informatics Carbon cycle science Climate change and terrestrial ecology

Affiliated Faculty/Associate Professor, Climate Sciences

Climate change Terrestrial carbon cycling Carbon capture and storage

Affiliated Faculty, Chief Medical Officer of Antibiotic Resistance Action Center and an Assistant Research Professor

Microbial ecology Molecular epidemiology Antibiotic resistance Antimicrobial stewardship

Affiliated Faculty/Professor, Informatics and Computing Program

Ecological synthesis and analysis Bayesian applications in ecology Plant and ecosystem ecology

Affiliated Faculty, Professor at the George Washington University’s Milken Institute School of Public Health

Antibiotic resistance Food-animal production Antibiotic stewardship E. coli and Superbugs

Affiliated Faculty, Associate Professor, School of Informatics, Computing, and Cyber Systems

Ecohydrology Information theory Land-atmosphere CWEN exchange Urban and CNH ecology

Affiliated Faculty/Professor, Earth Sciences and Environmental Sustainability

Biogeochemistry of alpine tropical and dryland ecosystems Paleoecology/land use history

Administration

Interim Manager

Administration

Program Coordinator, Sr.

Administration Events and Conferences Public Policy

Administrative Consultant

Research Staff

Research Associate Senior, Colorado Plateau Stable Isotope Laboratory

Production and consumption of greenhouse gases by microorganisms

Assistant Director, Interactive Data Visualization

Radiocarbon Global carbon cycle Climate change

Research Associate Senior

Microbial Ecology

Research Associate

Ecosystem ecology Biogeochemistry Global change

Research Associate Senior

Stream and river ecology

Research Staff

Terrestrial ecosystems Tree physiology Isotopes

Senior Coordinator for Artistic Interpretation of Research Discoveries

Illustrating science life and all things between

Research Coordinator

Ecosystem ecology

Coordinator

Research Specialist

Soil ecology Nutrient cycling Analytics

Postdoctoral Scientists

Postdoctoral Scientist

Forest-atmosphere interactions boundary-layer meteorology phenology eddy covariance

Postdoctoral Scientist

Deep learning applications in Earth science Web application development Temperature dependence of Earth system processes

Global change
Microbial ecology

Physiological ecology
Global change biology

Ecosystem ecology
Carbon and nitrogen cycles
Ecological modeling
Earth system science

Ecosystem and community ecology
Plant-soil microbe interactions

Aquatic Ecology
Freshwater food webs
Ecosystems

Terrestrial ecosystems
Global change
Biosphere-atmosphere interactions and Phenology

Feedback from terrestrial ecosystems to climate change
Arctic ecosystems

Microbial ecology
Bioremediation
Ecosystem ecology

Climate change effects on terrestrial ecosystems
Applications of stable isotopes on C and N cycling processes

Plant ecology
Biodiversity and ecosystem functioning
Dryland ecosystems

Earth system science
Terrestrial carbon cycling
Isotopes (especially 14C)

Invasions
Restoration
Soil-plant feedbacks
Nutrient dynamics
Mycorrhizal mutualisms
Species interactions
Local adaptation

Global carbon cycle
Permafrost carbon
plant phenology

Global change ecology
Earth system modeling
Terrestrial biogeochemistry
Machine learning in the biogeosciences

Microbial ecology
Micro-organisms in human health and disease
Software development

Environmental informatics
Carbon cycle science
Climate change and terrestrial ecology

Climate change
Terrestrial carbon cycling
Carbon capture and storage

Microbial ecology
Molecular epidemiology
Antibiotic resistance
Antimicrobial stewardship

Ecological synthesis and analysis
Bayesian applications in ecology
Plant and ecosystem ecology

Antibiotic resistance
Food-animal production
Antibiotic stewardship
E. coli and Superbugs

Ecohydrology
Information theory
Land-atmosphere CWEN exchange
Urban and CNH ecology

Biogeochemistry of alpine
tropical and dryland ecosystems
Paleoecology/land use history

Administration
Events and Conferences
Public Policy

Radiocarbon
Global carbon cycle
Climate change

Ecosystem ecology
Biogeochemistry
Global change

Terrestrial ecosystems
Tree physiology
Isotopes

Illustrating science
life and all things between

Soil ecology
Nutrient cycling
Analytics

Forest-atmosphere interactions
boundary-layer meteorology
phenology
eddy covariance

Deep learning applications in Earth science
Web application development
Temperature dependence of Earth system processes

Soil phosphorus dynamics and availability
Nutrient stoichiometry
Forest ecosystem
Climate

Dendroecology
Drought legacies
Radiocarbon
Non-structural carbohydrates
Hierarchical Bayesian statistics

Earth system modeling
Data-model integration
Bioenergy production

Phenology and climate change
Land-atmosphere interactions
Fire ecology
Arctic and boreal forest ecology
Geospatial analysis and statistical modelling

Soil carbon
Nutrient cycle modeling
Microbes

Restoration ecology
Plant functional traits
Plant community ecology
Drylands

Applied restoration ecology
Plant-pollinator interactions

Community ecology
Plant water relations
Drylands