Jeffrey R. Garnas

Assistant Professor
Assistant Professor of Forest Ecosystem Health
Extraordinary Faculty, University of Pretoria
Phone: (603) 862-2094
Office: Natural Resources & the Environment, James Hall Rm 162, Durham, NH 03824


  • Ph.D., Ecology and Evolution, Dartmouth College
  • M.S., Ecology and Evolution, University of Maine
  • B.A., Psychology, University of Colorado at Boulder

Courses Taught

  • NR 506: Forest Entomology
  • NR 600: Work Experience
  • NR 782: Forest Health


Wondafrash, M., Slippers, B., Garnas, J., & Hurley, B. P. (2018). Parasitoid assemblage associated with a North American pine weevil in South Africa. Agricultural and Forest Entomology, 20(2), 208-216. doi:10.1111/afe.12246

Eksteen, L., Hurley, B. P., & Garnas, J. R. (2018). Patterns and drivers of host use in planted pines by the European woodwasp, Sirex noctilio. Journal of Economic Entomology, In review.

Termer, K. T., Hurley, B., & Garnas, J. R. (2018). Biotic and abiotic drivers of resource quality for Sirex noctilio larvae. Journal of Applied Ecology, In submission.

Burgess, T., Mcdougall, K. L., Scott, P. S., Hardy, G., & Garnas, J. R. (2018). Predictors of Phytophthora diversity and community composition in natural areas across diverse Australian ecoregions. Ecography.

Olivier, S., Hurley, B. P., & Garnas, J. R. (2018). Patterns of insect diversity on exotic Acacia mearnsii with comparisons to Vachellia sieberiana in South Africa. Agricultural and Forest Entomology, In review.

Dukes, J. S., Pontius, J., Orwig, D., Garnas, J. R., Rodgers, V. L., Brazee, N., . . . Ayres, M. (2009). Responses of insect pests, pathogens, and invasive plant species to climate change in the forests of northeastern North America: What can we predict?. CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 39(2), 231-248. doi:10.1139/X08-171

Groden, E., Drummond, F. A., Garnas, J., & Franceour, A. (2005). Distribution of an invasive ant, Myrmica rubra (Hymenoptera : Formicidae), in Maine. JOURNAL OF ECONOMIC ENTOMOLOGY, 98(6), 1774-1784. Retrieved from

Queffelec, J., Wooding, A., Greeff, J., Garnas, J. R., Hurley, B. P., Wingfield, M. J., & Slippers, B. (2018). Potential mechanisms that influence sex ratio variation in the invasive Hymenopteran Sirex noctilio in South Africa. In submission.

Fitza, K. N., Garnas, J. R., & Slippers, B. (2018). Fitness consequences of lineage interbreeding in the nematode Deladenus siricidicola, biological control agent of the European woodwasp, Sirex noctilio. In prep..

Garnas, J., Lombardero, F. J., & Ayres, M. P. (2018). Population Dynamics. In J. Allison, & T. D. Paine (Eds.), Forest Entomology. Springer.

Most Cited Publications