Biological Sciences

Leah Flaherty

Assistant Professor, Biological Sciences

PhD (New Brunswick), M.Sc. (New Brunswick), B.Sc. (New Brunswick)

On Leave

6-117B, City Centre Campus
10700 – 104 Avenue
Edmonton, AB


Dr. Flaherty completed her PhD at the University of New Brunswick, examining novel tri-trophic interactions between an exotic wood borer and its host tree, competitors and natural enemies in an introduced habitat in Nova Scotia. Her post-doctoral work at the University of Massachusetts examined biological control of the hemlock woolly adelgid by an established predatory beetle. Dr. Flaherty's current research focuses on the population dynamics of the forest tent caterpillar, improving trapping methodologies for early detection of invasive forest insects and examining the impact of an invasive weed (garlic mustard) on belowground invertebrate communities.

Forest insect ecology and management, plant-insect interactions, invasion ecology and management

Teaching and Research Interests

BIOL 208: Principles of Ecology
BIOL 314: Population Ecology 
BIOL 312: Terrestrial Ecology
BIOL 422: Methods in Experimental Ecology 

Potential future courses include, community ecology, invasion ecology and urban field ecology

Selected Publications / Presentations / Conference Papers

Johns, R.C., Flaherty, L., Carleton, D., & Edwards, S. (2016). Population studies of tree-defoliating insects in Canada: A century in review. Canadian Entomologist, 148(S1), S58-S81.

Flaherty, L., Quiring, D., Pureswaran, D., & Sweeney, J. (2013). Evaluating seasonal variation in bottom-up and top-down forces and their impact on an exotic wood borer, Tetropium fuscum (Coleoptera: Cerambycidae). Environmental Entomology, 42(5), 957-966.

Flaherty, L., Quiring, D., Pureswaran, D., & Sweeney, J. (2013). Preference of an exotic wood borer for stressed trees is more attributable to pre-alighting than post-alighting behaviour. Ecological Entomology, 38(6), 546-552.

Flaherty, L., Sweeney, J.D., Pureswaran, D., & Quiring, D.T. (2011). Influence of host tree condition on the performance of Tetropium fuscum (Coleoptera: Cerambycidae). Environmental Entomology, 40(5), 1200-1209.

Flaherty, L., Quiring, D., & Kershaw, J.A. (2010). Post-gall induction performance of Adelges abietis (Homoptera: Adelgidae) is influenced by clone, shoot length and density of colonizing gallicolae. Ecological Entomology, 35(1), 9-15.