Team

 

Principal Investigator

 
Amélie Gaudin

Amélie Gaudin   agaudin@ucdavis.edu

  • 2025-present: Professor  | UC Davis
  • 2025-present: Chair, Graduate Group in Hort and Agronomy 
  • 2021-present: Endowed Chair, Agroecology | UC Davis
  • 2020-2025: Associate Professor | UC Davis
  • 2016-present: Adjunct, Lawrence Berkeley National Lab
  • 2015-2020: Assistant Professor | UC Davis
    • 2013-2015: Post Doc | University of Guelph
    • 2011-2013: Post Doc | International Rice Research Institute
    • 2007-2011: PhD | University of Guelph
    • 2004-2007: Research Assistant | International Potato Center 

Staff  

 
Qing Zheng

Dr. Qing Zheng

Project Scientist 

Effects of root functional traits on plant microbial interactions regulating nitrogen cycling and use efficiency 

Email: qgzheng@ucdavis.edu

2023- present, Read more

Niuniu-Ji-headshot.jpg

Dr. Niuniu Ji

Post Doctoral Scholar 

Effects of the livestock grazing on plant-soil-microbe interactions regulating 
the nitrogen cycling in orchard ecosystem

Email: nnji@ucdavis.edu

2024-present, Read more

Ellie Coon

Ellie Coon

Junior Specialist, Gaudin and Williams Lab

Regenerative almond systems 

Email: eacoon@ucdavis.edu

2023-present 

Graduate Students

 
Profile photo of Mariana Munoz-Araya

Mariana Muñoz-Araya, PhD student (Hort&Ag), Fulbright Fellow

Impacts and potential of ecological approaches to build drought resilience of irrigated landscapes

Email: munoz@ucdavis.edu

2020- present Read More

Tommy Fenster

Thomas Fenster, PhD student (Hort&Ag, Ecdydis Foundation)

Quantifying multifunctionality of sheep grazing in California's vineyards 

Email: tlfenster@ucdavis.edu

2021- present 

Peter Geoghan

Peter Geoghan, PhD student (Ecology)

Long term impacts of land management on soil health of California veg crop systems 

Email: pjgeoghan@ucdavis.edu

2022- present 

Sarah Brickman

Sarah Brickman, PhD student (Soil&BioGeochem; co advised with C.Lazcano)

Stacking regenerative practices in vineyards: nutrient cycling and retention

Email: sbrickman@ucdavis.edu

2022- present Read more 

Profile photo of Alessandra Zuniga

Alessandra Zuniga, PhD student (Ecology, JDPE), NOAA-CESSRST Doctoral Fellow 

Quantifying Rhizosphere Microbial Feedbacks to Drought Resistance in Processing Tomato

Email: alezuniga@ucdavis.edu

2020- present  Read More

Danielle Merrell

Danielle Merrell, MSc (Hort&Ag) 

Yield and nutritional stability if Agroforestry systems 

Email: dmerrell@ucdavis.edu

2024- present 

Claire beckstoffer

Claire Beckstoffer, PhD (Soil&BioGeochem; NSF fellow) 

Impacts of cover crop functional traits and diversity on microbial activity and soil carbon storage

Email: cbeckstoffer@ucdavis.edu

2024- present 

Tanya

Tanya Gemperle-Goncalves, PhD (Hort&Ag)

Outcomes of stacking regenerative practices in Almond systems

Email: tgemperle@ucdavis.edu

2024- present 

Grayson

Grayson Messenger, MSc (Ecology)

Quantifying cover crop multifunctionality in almond systems

Email: gmessenger@ucdavis.edu

2024- present 

Undergraduate Researchers 

 
2024- present 

Noah Homsy King (nhomsyking@ucdavis.edu) 

Emily Chou (ekchou@ucdavis.edu)

Thea Wagner (tmwagner@ucdavis.edu)

Aldo Vorkapich (ajvorkapich@ucdavis.edu) 

 

 
  

Alumni

  • Post doctoral fellows

Vivian Wauters, now working at UC-SAREP. Developing best management practices for cover crop systems in Almond. Read More

Vanessa Brisson, now at LLNL, Rhizosphere microbiome recruitment in maize: impacts of breeding and selection on P solubilizers. Read More

Emad Jahanzad, now at CDFA, Potential of whole orchard recycling and organic amendments to build sustainability and resilience of Almond production.  Read More

Meng Li , now at Penn State. Breeding for healthy soils: importance of rhizosphere microbes and functions. Read More

Andrea Leptin, Effects of root functional traits on plant microbial interactions regulating nitrogen cycling and use efficiency  Read More

  • Graduate students 

Katherine Simpson-Johnson, MSc (SBG, 2023). Impact of mycorrhizal inoculants on processing tomato and soil health outcomes across different cropping systemsRead More

Sequoia Williams, MSc (SBG, 2023), Plant Science Award. Carbon and nitrogen coupling in integrated crop-livestock systems in California. Read More

Kelsey Brewer, PhD (SBG, 2023), UC Presidential Fellow. Carbon storage potential and nutrient flows in integrated sheep vineyard systems. Read More

Krista Marshall, MSc (Hort&Ag, 2022), FFAR Fellow. Managing for soil health: targets and significance in almond orchards. Read more

Alexandra Gulachenski, MSc (Ecology, 2022), Plant Science Award. Exploring the Role of Agroecosystem Design and Management in Building Californian Orchard System Resilience. Read More

Lindsay DahlenMSc (Hort&Agronomy, 2021), Impact of artificial selection on maize adaptation to low P. Read more

Leah Renwick, PhD/MSc (Hort&Ag- MSc IAD 2020), NSF Fellow, Plant Science Award. Impact of cropping system diversification on drought resilience and soil-plant-water relations. Read More

Jennifer Schmidt, PhD (Hort&Ag, 2020), UCD Graduate Fellow, Plant Science Award. Impact of maize domestication and breeding on rhizosphere eco-physiology and resource acquisition. Read More

Caitlin Peterson, PhD (GGE-IAD, 2019), NSF Fellow. Field level resilience and ecosystems services provision from integrated crop and livestock systems in Brazil. Read More

Emily Webster, MSc (Hort&Agronomy – IAD, 2017) Impact of pasture management on soil health and functioning in Nicaragua

  • Undergraduate Students and Junior Specialists

Josh Estes, Junior Specialist. Multifunctional outcomes of diversified CA vegetable and vineyard systems. 2023-2024. 

Kyle Muller, the perceptions of agroecology and positionality on the Gaudin Lab team. Bowdoin College 2024

Ivan Martinez, SAFS Major 2021-2023. Impact of sheep grazing on vineyards understory and soil C cycling (CDFA) 

Frances Neill, SAFS Major 2020-2022. Impact of sheep grazing of cover crops on C and N cycling of vegetable cropping systems (CDFA)

Frieda Schwebel, Plant Sciences Major 2019-2021. Impact of sheep grazing on vineyards understory and soil C cycling (CDFA) 

Aaron Lee, Brady Waino, SAFS Major 2018-2020. Effects of timing and quality of compost on N leaching potential on an organic farm (Scott Park) 

Jesper Richardy, Intern, University of Copenhagen 2018. Impact of organic management on tomato attractiveness to beet leafhoppers (CTRI)   

Joshua Garcia, McNair Scholar 2015-2017. Antarctic rhizobacterium: evaluating potential for root growth and productivity (Creative BioSc.)

Rebekah Velasco, IAD major 2016-2018. Soil health and resilience of vegetable cropping systems (OFRF)

Anna Azimi, SAFS Major 2016-2017. Soil health and resilience of vegetable cropping systems (OFRF)

Sort term general help on various projects (2016-present): Hannah Kim, Zulema Renteria, Lupe Garcia, Vivian Thieu, Jennifer Law, Daniel O’Brien, Hanna Ibiapina de Jesus, Thais Soares

Visiting scholars

Christos Vasilikiotis,  Assistant professor, Perrotis College/American Farm School, Greece.  2018 Survey of almond root colonization by mycorrhizae. 

Pedro de Albuquerque Nunes, PhD scholar, Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul, Brazil, 2019 

Alessio Costa, PhD scholar, Department of Department of Crop Production Ecology, Swedish University of Agricultural Sciences, 2023 

Edith LeCadre, Professor and Fullbright Fellow, Agrocampus Ouest.  2023 Agroecological management and Resistance, Resilience of soil functions: microbial network Stability hypothesis 

Daniel Ortiz Gonzalo, Postdoctoral Fellow (Marie Curie, University of Copenhagen, ICRAF) 2022 Trees4Climate: quantifying carbon storage of agroforestry systems 

Laura Caruther, PhD scholar, University of Saskatchewan (Kate Congreve)  2024 Impact of Cover Crop Species and Diversity on 15N Recovery in Almond Orchards

 


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