Sybil is a tropical plant ecophysiologist who has worked extensively in Latin America. Her research has taken her from the tropical dry forests of Guanacaste, Costa Rica, to the savannas of Brazil, and more recently to the tropical montane cloud forests (TMCF) of Mexico. In 2012, Sybil started a new research program in Monteverde, Costa Rica where she and her students are studying the vulnerability of the TMCF canopy community to changes in rainfall and cloud cover. A three-year veteran of BELL, Sybil finds mentoring young people incredibly rewarding, and is especially interested in using field-based learning activities in her teaching.