Skip to content Skip to navigation



Global changes, environmental shocks, market forces and anthropogenic disturbances from harvesting to pollution are affecting natural populations in unprecedented ways and at different time and spatial scales.

We use quantitative tools (from life history-based mathematical models to statistical analysis of empirical data) to investigate factors and processes affecting the dynamics of infectious diseases of humans as well as the dynamics of marine resources of commercial and conservation interest. Ultimately, we use theoretical ecology to develop models and knowledge that inform practical management.

Tim with Coconut Crab


In 2020 I am interested in recruiting students through the Stanford E-IPER program to conduct interdisciplinary science on environmental and socio-economic drivers of infection diseases of medical and/or veterinary importance. Please send inquiries to deleo at stanford dot edu.

See our new Kids and Climate outreach website

Researchers from Hopkins Marine Station of Stanford University and the Monterey Bay Aquarium Research Institute (MBARI) have created an activity book aimed at helping elementary school and early middle school students, in particular 4th-6th graders, to familiarize themselves with the concept of ocean acidification, what causes it, how it occurs, how it affects marine organisms and ecosystems, and what we can do to help mitigate its impacts.

circle the animals that are negatively affected by Ocean Acidification


Program for Disease Ecology, Health and the Environment

We study ecological solutions that protect the health of people and the planet.

see: Program for Disease Ecology Website

Protected by Prawns

Restoring native crustaceans along West Africa’s Senegal River may be a critical step in controlling one of the world’s deadliest tropical diseases.

Video produced by Katie Jewett, California Academy of Sciences. See entire article.


Fisheries and Conservation

F&C comp

Disease Ecology and Health

DEH comp