Larry Harris

Phone: (603) 862-3897
Office: Biological Sciences, Spaulding Hall Rm 149A, Durham, NH 03824
Larry Harris

I was trained as an invertebrate zoologist with strong interests in life histories, behavior, and defensive strategies utilized between members of predator-prey associations. My teaching and research focus primarily on marine species and communities and while most of my studies are done in the Gulf of Maine, I have experience in a wide diversity of habitats (Panama, Chile and Indonesia in 2005). My research is most accurately described as quantitative and manipulative natural history. The focus is on organisms and how they are adapted to their environments. This would be in contrast to a more theoretical approach that places primary emphasis on testing general models. Both are important - I just happen to like living organisms first.


  • Ph.D., Zoology, Biology, University of California - Berkeley
  • B.A., University of California - Berkeley

Courses Taught

  • MEFB 503: Introduction to Marine Biology
  • TECH 797: Undergrad Ocean Research Prog
  • ZOOL 400: Professional Perspective Zool
  • ZOOL 628: Marine Invertebrate Evol &Ecol
  • ZOOL 795W: Inv/Marine Invertebrate Ecol
  • ZOOL 999: Doctoral Research

Selected Publications

Dijkstra, J. A., Harris, L. G., Mello, K., Litterer, A., Wells, C., & Ware, C. (2017). Invasive seaweeds transform habitat structure and increase biodiversity of associated species. Journal of Ecology, 105(6), 1668-1678. doi:10.1111/1365-2745.12775

Dijkstra, J. A., Westerman, E. L., & Harris, L. G. (2017). Elevated seasonal temperatures eliminate thermal barriers of reproduction of a dominant invasive species: A community state change for northern communities?. Diversity and Distributions, 23(10), 1182-1192. doi:10.1111/ddi.12604

Chase, A. L., Dijkstra, J. A., & Harris, L. G. (2016). The influence of substrate material on ascidian larval settlement. Marine Pollution Bulletin, 106(1-2), 35-42. doi:10.1016/j.marpolbul.2016.03.049

Dijkstra, J. A., Lambert, W. J., & Harris, L. G. (2013). Introduced species provide a novel temporal resource that facilitates native predator population growth. Biological Invasions, 15(4), 911-919. doi:10.1007/s10530-012-0339-1

Chavanich, S., Viyakarn, V., Sanpanich, K., & Harris, L. G. (2013). Diversity and occurrence of nudibranchs in Thailand. Marine Biodiversity, 43(1), 31-36. doi:10.1007/s12526-012-0141-4

Bullard, S. G., Lambert, G., Carman, M. R., Byrnes, J., Whitlatch, R. B., Ruiz, G., . . . Heinonen, K. (2007). The colonial ascidian Didemnum sp. A: Current distribution, basic biology and potential threat to marine communities of the northeast and west coasts of North America. Journal of Experimental Marine Biology and Ecology, 342(1), 99-108. doi:10.1016/j.jembe.2006.10.020

Dijkstra, J., Harris, L. G., & Westerman, E. (2007). Distribution and long-term temporal patterns of four invasive colonial ascidians in the Gulf of Maine. Journal of Experimental Marine Biology and Ecology, 342(1), 61-68. doi:10.1016/j.jembe.2006.10.015

Mathieson, A. C., Dawes, C. J., Harris, L. G., & Hehre, E. J. (2003). Expansion of the Asiatic green alga Codium fragile subsp tomentosoides in the Gulf of Maine. RHODORA, 105(921), 1-53. Retrieved from

Berman, J., Harris, L., Lambert, W., Buttrick, M., & Dufresne, M. (1992). Recent Invasions of the Gulf of Maine: Three Contrasting Ecological Histories. Conservation Biology, 6(3), 435-441. doi:10.1046/j.1523-1739.1992.06030435.x

HARRIS, L. G., EBELING, A. W., LAUR, D. R., & ROWLEY, R. J. (1984). Community Recovery After Storm Damage: A Case of Facilitation in Primary Succession. Science, 224(4655), 1336-1338. doi:10.1126/science.224.4655.1336

Most Cited Publications