He integrates genetics, genomics, ecology, and oceanography to understand the evolution of marine biodiversity with the aim of promoting marine conservation. He does his research largely in the context of innovative education programs focused on increasing the participation of underrepresented minorities in science. Barber’s Diversity and Health Disparities Program synthesizes marine and environmental research in the context of health disparities and social justice in an effort to increase the success of underrepresented minority and underserved premedical students.