Electronic Journal of Differential Equations, Conference 05 (2000), pp. 335-352. Title: Contributions of Alan C. Lazer to mathematical population dynamics Author: Chris Cosner (Univ. of Miami, Coral Gables, FL, USA) Abstract: This paper is a survey of the contributions that Professor Alan C. Lazer has made to the mathematical theory of population dynamics. Specific areas where Professor Lazer has made important contributions include time periodic population models with diffusion and nonautonomous models for many competing species. Published October 24, 2000. Math Subject Classifications: 92D25, 34D05, 34C25, 35K57, 35K20. Key Words: population dynamics; Lotka-Volterra; periodic-parabolic; reaction-diffusion; competitive systems; nonautonomous systems.