John is a Professor of Biology at William & Mary and was Dean of Graduate Studies and Research from 2012-2013. The major question that has stimulated most of his research is the role of environmental stressors in moderating ecological and evolutionary change—a question of growing importance as anthropogenic stressors on natural populations continue to increase. He has expanded his research program to include an explicit conservation angle to study how anthropogenic environmental disturbance (e.g. land use change and noise pollution) affects breeding performance and behavioral strategies in song birds. One of his current studies analyzes how the presence of World Bank projects affects bird biodiversity. Before W&M, Swaddle was an assistant professor at University of Bristol, where he also received his PhD in Behavioral Ecology.