Josh Stewart

Assistant Professor

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Research/Career Interests: 

Josh is a quantitative ecologist whose interests span animal movement, trophic ecology, and population dynamics with an emphasis on threatened species and ecosystems. A major focus of his work involves leveraging flexible Bayesian modeling frameworks to incorporate multiple data sources and take advantage of long time series of ecological processes and population dynamics. He has a strong interest in applied science, collaborating with stakeholders and managers, and applying his research directly to management with input from resource users. Josh is the Principal Investigator of MMI's Ocean Ecology Lab.


About the Ocean Ecology Lab:

At the Ocean Ecology Lab, we use science to support the management and conservation of marine species and ecosystems. Our three core areas of interest are animal movement, trophic ecology, and population dynamics. We use this information to identify where and when threatened, protected, and harvested species overlap with anthropogenic stressors, and to understand what the consequences of human impacts and management actions will be on the health and persistence of their populations. In the field, we use technology including drones, satellite and acoustic tags, and animal-borne video cameras to study movements, habitat use, and individual condition. In the wet lab we use stable isotope analysis and stomach content analysis to study trophic ecology. In the dry lab we use advanced quantitative tools to evaluate the drivers of population dynamics, from human impacts to environmental change and individual health. At every stage of the research process, we work closely with stakeholders, community members, and managers to ensure that our science has the greatest direct application to real-world issues and solutions.



Postdoctorate, National Academy of Sciences, 2019-2022
PhD, Scripps Institution of Oceanography, 2012-2018
MS, Scripps Institution of Oceanography, 2015
BA, Indiana University, 2010
Affiliated with: 
Ocean Ecology Laboratory
Marine Mammal Institute
Hatfield Marine Science Center