Timothy Bowles

Timothy Bowles

Associate Professor
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Associate Professor of Agroecology and Sustainable Agricultural Systems

Department of Environmental Science, Policy, and Management, University of California Berkeley

How can reliance on biodiversity and ecological processes create productive, resilient, and healthy agricultural systems? This question frames my overarching goal, which is to support the transformation of our agricultural system from one reliant on intensive, synthetic inputs to one based on ecological processes. In particular, I am interested in how agricultural management based on ecological principles and honed through on-farm experience affects soil health, resource-use-efficiency, and resilience to environmental change, especially drought. This research lies at the intersection of agroecology, soil ecology, and biogeochemistry with a focus on plant-soil-microbe interactions. I use several approaches, including on-farm research across agricultural landscapes, historical data synthesis from long-term trials, and field and greenhouse experiments. Through collaboration with farmers, agronomists, conservation biologists, social scientists, and economists I aim for a multidimensional perspective on agroecological transformations.


PhD in Ecology, University of California Davis

BA in Molecular and Cellular Biology, Vanderbilt University


  • – Agroecology
  • – Soil ecology
  • – Plant-soil-microbe interactions