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Joel E. Cohen
Abby Rockefeller Mauzé Professor

Tomas Jonsson

Professional and academic essentials

Mailing address: Postdoctoral Associate, Laboratory of Populations, Rockefeller University, 1230 York Avenue, Box 20, New York, NY 10021-6399 USA

Email:, Tel. (212) 327-8887, Fax (212) 327-7974

1990 - Bachelor of Science in Biology, Linköping University, Sweden.

1992 - Development of software for simulations in Population Ecology at the Department of Biology, Linköping University.

1990-1997 - Part-time Assistant Lecturer at the Department of Biology, Linköping University: teaching and supervision at courses in Ecology , Population Genetics and Mathematics for biologists.

1995 - Participation in Summer School, Food Web Structure and Dynamics in Freshwater, Marine and Terrestrial Environments, at Cornell University, Ithaca, NY.

1995 - Final Project Advisor: Body Sizes and Demographies of Species - Implications for the Resilience and Length of Food Chains by Knutas G. (Linköping University)

1996 - Licentiate of Philosophy in Biophysics and Theoretical Biology, Linköping University

1998 - Doctor of Philosophy in Biophysics and Theoretical Biology, Linköping University, Sweden), thesis title: Food webs and the distribution of body sizes

1998-1999 - Lecturer at the Department of Biology, Linköping University, including teaching and supervision at courses in Ecology and Population Genetics.

1999 - Postdoctoral Associate in Joel E. Cohen lab, Rockefeller University, New York, NY.

Publications and manuscripts

Jonsson, T. & B. Ebenman. 1998. Effects of predator-prey body size ratios on the stability of food chains. Journal of Theoretical Biology 193, 407-417.

Neubert M. G., S. C. Blumenshine, D. E. Duplisea, T. Jonsson & B. Rashleigh. Body size, food web structure, and the cascade modelīs equiprobability assumption. Submitted.

Jonsson T. & B. Ebenman. The relationship between demography, food chain length and resilience. Manuscript.

Jonsson T. Lotka-Volterra food chains, density-dependence and the pyramid of numbers. Manuscript.

Jonsson T. & B. Ebenman. Trophic links and the relationship between predator and prey body sizes in food webs. Manuscript.

Ebenman B., A. Johansson, T. Jonsson & U. Wennergren. 1996. Evolution of stable population dynamics through natural selection. Proceedings of the Royal Society London, series B, 263:1145-1151.

Ebenman B., C. Borrvall & T. Jonsson. Effects of species extinctions in model food webs. Submitted.


Graduate Advisor: Ebenman, Bo, Dept. of Biology, IFM, Linköping University, Sweden

Postdoctoral Advisor: Cohen, Joel E., Rockefeller University, New York, NY, USA