The PhD in Biosystems and Biodiversity is delivered by the Faculty of Arts and Science. Students in this program are normally supervised by faculty members in our Biological Sciences and Geography departments.

Biosystems and Biodiversity is a multidisciplinary program emphasizing organisms' interactions with both biotic and abiotic components of their environments. Areas of research include animal ecology, plant ecology, microbial ecology, parasitology, molecular systematics, biogeography, physiological ecology, remote sensing, environmental genetics, toxicology, developmental biology, phytochemistry and plant physiology. In their programs, researchers use a wide range of techniques to study an array of organisms, including animals, plants, bacteria and fungi. Many research programs include a combination of laboratory and field studies.