Researcher Profile

Patrick T. Gregory

Job Title: Professor
Employer: University of Victoria
Place of Birth: Bilston, West Midlands, England
Public School attended: St. Joseph's (in England); General Mercer, Runnymede, Lambton-Kingsway (all in Toronto)
High School attended: Etobicoke Collegiate Institute (in Toronto)
Further Education: University of Toronto (B.Sc.), University of Manitoba (M.Sc., Ph.D.).
Geographic focus of research: British Columbia, Ontario, Alberta, Manitoba, England

Brief synopsis of current research:
My research has two broad aims: (1) to describe the ecology of amphibians and reptiles, especially snakes, as unique groups of organisms; (2) to use these taxa to address issues in population dynamics and life-history theory that are of more general significance. I interpret the subject area of life history broadly. For example, because amphibians and reptiles are ectotherms, their body heat being derived mainly from environmental sources, they are constrained as to where they can live and when they can be active, especially in the highly seasonal temperate zones; in turn, such constraints influence population parameters such as survivorship and, via resource acquisition, growth and reproduction, as well as movements. The question of constraints and tradeoffs in the life cycle and how they shape life-history traits is a major focus of my research. Natural history, the study of the organism in its natural setting, also is an important element of my research program and I devote much of my attention to long-term field studies, especially using mark-recapture methods.

Mailing address:
Dept. of Biology, University of Victoria, PO Box 3020, STN CSC, Victoria, BC, Canada V8W 3N5
Phone: (250) 721-7103; Fax: (250)721-7120

Recent Publications:

Nelson, K.J. and P.T. Gregory. 2000. Activity patterns of garter snakes, Thamnophis sirtalis, at a fish hatchery on Vancouver Island, British Columbia. J. Herpetol. 34: 32-40.

St. Clair, R.C., P.T. Gregory, and J.M. Macartney. 1994. How do sexual differences in growth and maturation interact to determine size in northern and southern painted turtles? Can. J. Zool. 72: 1436-1443.

Gregory, P.T. and K.J. Nelson. 1991. Predation on fish and inter-site variation in the diet of the garter snake, Thamnophis sirtalis, on Vancouver Island. Can J. Zool. 69: 988-994. {Erratum: 1992. Can. J. Zool. 70:2501}

St. Clair, R.C. and P.T. Gregory. 1990. Factors affecting the northern range limit of painted turtles (Chrysemys picta): winter acidosis or freezing? Copeia 1990: 1083-1089.

Gregory, P.T. 1979. Predator avoidance behavior of the red-legged frog (Rana aurora). Herpetologica 35: 175-184.

My career choice was based on two factors: (1) deep interest in animals (especially snakes, as it turned out), particularly in their natural setting; (2) interest in science and solving problems. The best way to marry these interests was to go to graduate school and then become a university professor. This job also exposed me to teaching, which I like very much as well.