Europhys. Lett.
Volume 74, Number 3, May 2006
Page(s) 554 - 559
Section Interdisciplinary physics and related areas of science and technology
Published online 05 April 2006
Europhys. Lett., 74 (3), pp. 554-559 (2006)
DOI: 10.1209/epl/i2005-10558-3

Sustainable sex ratio in lattice populations

K. Tainaka, T. Hayashi and J. Yoshimura

Department of Systems Engineering, Shizuoka University - Hamamatsu 432-8561 Japan

received 15 December 2005; accepted in final form 6 March 2006
published online 5 April 2006

We present a lattice model of mating populations. Simulation is performed by two different methods: local and global interactions. Simulation results account for the reason why the observed sex ratio is nearly one half in many animals. The male-biased sex ratio, such as in human populations, is also explained.

87.23.-n - Ecology and evolution.
05.50.+q - Lattice theory and statistics (Ising, Potts, etc.).
87.15.Aa - Theory and modeling; computer simulation.

© EDP Sciences 2006