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Research

I seek a fundamental understanding of the interdependence between ecological diversity and biogeochemical fluxes in the ocean. In the upper euphotic zone, carbon, nitrogen and phosphorus move rapidly between particulate organic matter, dissolved organic matter and their inorganic forms. Alongside this fast cycle is a slow one. The export of sinking organic particles is balanced by the upwelling of inorganic nutrients from the deep sea. How are these two cycles coupled? Does ecology drive export or does upwelling set the ecology? Any attempt to answer these questions is muddled by the extreme diversity inside each nutrient reservoir. Dissolved organic material contains tens of thousands of unique compounds, and free living plankton include tens of thousands of species that interact differently with their chemical environment and one another. I look for ways to simplify these interactions.


Research grants

Iron and Manganese Impacts on the Future of Southern Ocean Ecosystems ( Iron-Man)

NATURAL ENVIRONMENT RESEARCH COUNCIL

June 2025 - May 2029

CBIOMES Proposal: Connecting Biogeography and Biogeochemistry Across Scale

SIMONS FOUNDATION (USA)

January 2023 - November 2026

CBIOMES Scholars: Space, Time, and Plankton Prediction

SIMONS FOUNDATION (USA)

September 2023 - August 2027

Life Sciences Program: Nitrogen Fixation and Export

SIMONS FOUNDATION (USA)

September 2023 - August 2027