Biological Sciences

Kevin Judge

Assistant Professor, Biological Sciences

PhD (Toronto), M.Sc. (Guelph), B.Sc. (Guelph)

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


Kevin Judge completed his B.Sc. and M.Sc. at the University of Guelph and then a PhD at the University of Toronto Mississauga. After working on the mating system of the bullfrog (Lithobates catesbeianus) in Algonquin Provincial Park in Ontario for his M.Sc., Kevin made the switch to working on sexual selection, or competition over mates, in the fall field cricket (Gryllus pennsylvanicus) for his PhD dissertation. He followed that up with a postdoctoral fellowship at the University of Lethbridge working on the evolution of aggressive behaviour and weaponry in North American field crickets. 

His current research interests involve the study of sexual selection in a group of sexually-cannibalistic insects (genus Cyphoderris) and how that competition selects for a range of diverse behaviours and morphologies, as well as the interaction between ecology and mating system. Kevin’s teaching interests closely mirror his research experience, and he teaches a fourth year course in entomology (BIOL 425: Introductory Entomology) and a first year course in introductory biology (BIOL 108: Organisms in Their Environment).

Available to supervise senior students' independent study.

Entomology, sexual selection, animal behaviour, mating systems, insects, crickets, Orthoptera

Teaching and Research Interests

Teaching Interests

  • BIOL 103 Humans and Their Environment
  • BIOL 108 Organisms in Their Environment
  • BIOL 498 Independent Research
  • ZOOL 425 Introductory Entomology

Research Interests

  • Studying the interaction between ecology and sexual selection to shape the mating system of insects in the genus Cyphoderris, a group of orthopterans with sexual cannibalism.
  • Studying the evolution of weaponry and aggressive behaviour in North American field crickets (genus Gryllus).
  • Side projects include: morphological differences between gregarious and solitary Mormon crickets; geographic and temporal variation in sexual selection in bullfrogs; aggressive behaviour and weaponry in Madagascar hissing cockroaches; condition dependence of sexual attractiveness in mealworm beetles; differential maternal allocation in field crickets.

Selected Publications / Presentations / Conference Papers

  • Ower GD, Judge KA, Steiger S, Caron KJ*, Smith RA*, Hunt J, Sakaluk SK. 2013. Multivariate sexual selection on male song structure in wild populations of sagebrush crickets, Cyphoderris strepitans (Orthoptera: Haglidae). Ecology and Evolution 3: 3590-3603.
  • Judge KA, De Luca PA, Morris GK. 2011. Food limitation causes female haglids to mate more often. Canadian Journal of Zoology 89: 992-998.
  • Judge KA. 2010. Female social experience affects the shape of sexual selection on males. Evolutionary Ecology Research 12: 389-402.
  • Piascik EK*, Judge KA, Gwynne DT. 2010. Polyandry and tibial spur chewing in the Carolina ground cricket (Eunemobius carolinus). Canadian Journal of Zoology 88: 988-994.
  • Judge KA, Ting JJ*, Gwynne DT. 2008. Condition dependence of male life span and calling effort in a field cricket. Evolution 62: 868-878.
  • * undergraduate coauthor

Awards / Grants / Fellowships

  • MacEwan University, Research, Scholarly Activity and Creative Achievement Fund (2013)
  • MacEwan University, Arts and Science Research Fund (2012-2013)
  • University of Toronto, Ramsay Wright Scholarship in Zoology (2004-2005)
  • University of Toronto, Carl E. Atwood Graduate Award in Zoology (2003-2004)
  • Orthopterists’ Society, Graduate Student Grant (2004)
  • Natural Sciences and Engineering Research Council of Canada Postgraduate Scholarship B (2001-2003)
  • Natural Sciences and Engineering Research Council of Canada Postgraduate Scholarship A (1997-1999)

Professional Associations / Memberships

  • Canadian Society for Ecology and Evolution (2007-Present)
  • Society for the Study of Evolution (2010-Present)
  • Animal Behavior Society (2000-Present)
  • International Society for Behavioral Ecology (2001- Present)
  • Orthopterists’ Society (2008-Present)
  • Entomological Society of Canada (2012-Present)
  • American Entomological Society (2010-Present)
  • Entomological Society of Alberta (2010-Present)
  • Canadian Amphibian and Reptile Conservation Network (2000-Present)

Boards / Committees

  • Northern Director, Entomological Society of Alberta
  • Section Editor (Behaviour), Journal of Orthoptera Research