Alan Johnson

Associate Professor
Forestry and Environmental Conservation Department

Office: G-08C Lehotsky
Phone: 864-656-4390
Personal Website:


 Educational Background

Ph.D. Environmental Toxicology
The University of Tennessee, Knoxville 1988

B.S. Chemistry
Colorado State University 1980

 Courses Taught

Introduction to Environmental and Natural Resources II
Environmental Risks and Society
Environmental Law and Policy
Conservation Issues
Ecological Risk Assessment


Dr. Johnson's research interests include ecological modeling, risk assessment, and science-based environmental policy and decision-making. His teaching focuses on introductory and policy-related courses for undergraduates, and a graduate-level course on ecological risk assessment.

Currently, Dr. Johnson serves on the departmental Tenure, Promotion and Retention (TPR) Committee and the Assessment Committee. He is also a member of the university Sustainability Minor Oversight Committee.

 Research Interests

Ecological modeling, environmental toxicology, and ecological risk assessment, with particular focus on:
• risk assessment and management decisions under uncertainty
• the water-energy nexus
• conceptual issues in astrobiology, including space colonization, terraforming, and wilderness beyond planet Earth


Mhatre, S.S., A. Johnson and M. Wolf. 2015. Presence of Alasmidonta varicosa (Brook Floater) nursery in Turkey Creek, Savannah River basin: New information on brook floater in the Slate belt region of South Carolina, USA. Ellipsaria (newsletter of the Freshwater Mollusk Conservation Society), Dec 2015, pp. 17-18.
Allen, C.R., D.R. Uden, A.R. Johnson and D. Angeler. 2015. Spatial modeling approaches for understanding and predicting the impacts of invasive alien species on native species and ecosystems. Pages 162-170 in Venette, R.C. (ed.), Pest Risk Modelling and Mapping for Invasive Alien Species. CABI, Oxfordshire, UK.
Johnson, A.R. 2012. Avoiding environmental catastrophes: varieties of principled precaution. Ecology and Society 17(3): 9.
Johnson, A.R. and S.J. Turner. 2010. Relevance of spatial and temporal scales to ecological risk assessment. In: L.A. Kapustka and W.G. Landis (eds.), Environmental Risk Assessment and Management from a Landscape Perspective. Wiley, Hoboken, NJ, USA. pp.55-74.