People

María Natalia Umaña, PhD
I am a forest community ecologist interested in understanding how tree communities are assembled. My research focuses on providing a deeper understanding of the mechanisms responsible for maintaining species diversity in forest systems, and how that can help us to anticipate responses to future conditions. To this end, I utilize field-based and statistical modeling approaches.
Check out our Research Section to learn more obout the projects we are working on!
Email: [email protected] | google scholar

Juan Manuel Cely, MSc student
Juan Manuel is a biologist interested in plant functional ecology. In 2023, he completed his BSc at Universidad Nacional de Colombia, where he assessed functional trait variation at local scales in a Tropical Dry Forest. He is interested in understanding how intraspecific trait variation relates to performance and abundance of seedling tree species.

Tomás Fuentes-Rohwer, PhD candidate
Tomás holds a master’s degree from the O’Neill School of Public and Environmental Affairs program and previously served as a lead ecologist at Meristem, LLC in Bloomington, Indiana, where he also completed his BS in Biology. In 2023, he joined our lab with a specific focus on investigating forest recovery following extreme droughts and hurricanes in Puerto Rico.

Larissa Lotti, PhD student
Larissa is interested in how diversity is maintained in plant communities inside highly diverse systems such as tropical forests. She is also interested in how climate change will impact forest dynamics, especially mortality and recruitment. She completed her BSc in Biology and MSc in Ecology at the University of São Paulo, Brazil, where she worked on the Atlantic Forest, developing an approach to integrate ecology and macroevolution on community assembly.

Manar Talab, MSc student
Manar is a first year masters student in the Frontiers program. She did her bachelors at Princeton University and conducted her thesis on the impacts of mutualism on foundational species recovery with Seagrass and Clams in North Carolina. She is interested in how climate change impacts species interactions and larger ecosystem function. Manar is primarily interested in mutualism, climate change, and habitat restoration.

Peter Williams, Postdoc
Peter is interested in community ecology. As a Ph.D. student, he worked in the tropical forests of Malaysian Borneo, examining the role of seed predators and frugivores on plant communities. As a postdoctoral researcher co-advised by Elise Zipkin and me, he will be working on a project studying tree responses to rainfall variation in tropical dry forests in the neotropics.
Lab Alumni
Xucai Pu – Visiting scholar from Northeast Forestry University in China. Currently at University of Peking
Monique Weemstra – Postdoctoral researcher. Currently at Wageningen University.
Scott Fordham – Undergraduate researcher. Currently at USGS.
Andrés González-Melo – Postdoctoral researcher. Currently at University of Gothenburg
Samuel Schaffer-Morrison – PhD student. Currently at Yale University.
Minh Chau N. Ho – PhD student.
Tun Fung Au (Tom) – Postdoctoral researcher.
