Join the lab

Prospective graduate students

Each year, one or two graduate positions may come available in my lab for qualified and motivated individuals who wish to study ecology or biogeochemistry. Admission depends on qualifications and funding. The department has a few TA positions that come available every year, which applicants may compete for (about 10-15% of prospective applicants are awarded a TA position). Students with excellent GPA and GRE scores may compete for USF Presidential Fellowships, as well. I am also interested in working with prospective applicants to help them secure their own funding from external scholarships, fellowships, etc. I do not currently have grant support for RA positions. The application deadline for fall admission is usually Jan 1 of the same calendar year.

Prospective graduate students should email a note of inquiry to David Lewis ( and attach their résumé or CV. Graduate program information and application instructions can be found here:

Haphazardly assembled & poorly updated list of other funding sources …
* NSF programs
* EPA STAR fellowships
* NOAA’s Nancy Foster scholarships (particularly for women and minorities)
* NASA student funding (carbon cycling sometimes eligible for NASA money)
* Some other lists and databases (may take some digging through):
List maintained by the USF grad school
Database of opportunities at USF library website
General USF database
USF Office of National Scholarships

Undergraduate students

Motivated undergraduate students interested in research experience may work in the lab by signing up for research credits. We typically have several undergraduate students assisting research staff, graduate students, and professors in the lab and field. Students usually sign up for 2 or more research credits, working 3 contact hours per credit. Lab work varies from washing dishes to running analytical equipment according to need and experience. Field work is concentrated in the summer, but occurs year round.

Students working in the lab long enough (e.g., several semesters) to learn analytical techniques and become well versed in lab procedures have the opportunity to pursue independent research projects. Some students have used this opportunity to fulfill honors requirements. Interested students should email Dr. Lewis (


Post-docs are welcome in our lab. We are always looking for new ideas and leadership from people at this advanced level. Although I unfortunately do not have current funding to support a post-doc, I am constantly writing proposals that often include post-doc positions in the budget. So, prospective post-docs interested in the subject matter of our lab are invited to work with me to develop proposals that would fund their own position.