We use mathematical modeling to study theoretical aspects of human evolution, in particular, evolutionary origins of human behavior, psychology, culture, and society.

Members

Yasuo Ihara
Lecturer

Yutaka Kobayashi
Postdoctoral fellow

Shun Kurokawa
Graduate student
JSPS research fellow

Kohei Tamura
Graduate student
JSPS research fellow

Mariko Tsumaki
Graduate student

Taro Yoshida
Graduate student

Shusuke Yamashita
Graduate student

Recent publications

Seki, M., and Ihara, Y. (2012) The rate of cultural change in one-to-many social transmission when cultural variants are not selectively neutral. Letters on Evolutionary Behavioral Science (in press).

Seki, M. (2012) Intra-individual conflicts between autosomal and X-linked altruistic genes: evolutionary perspectives of sex-specific grandmothering. Journal of Theoretical Biology 304, 273-285. doi:10.1016/j.jtbi.2012.03.032

Kobayashi, Y., and Aoki, K. (2012) Innovativeness, population size, and cumulative cultural evolution, Theoretical Population Biology (in press).

Kobayashi, Y., and Wakano, J. Y. (2012) Evolution of social versus individual learning in an infinite island model. Evolution 66, 1624-1635.doi:10.1111/j.1558-5646.2011.01541.x

Deng, K., Li, Z., Kurokawa, S., and Chu, T. (2012) Rare but severe concerted punishment that favors cooperation. Theoretical Population Biology 81, 284-291. doi:10.1016/j.tpb.2012.02.005

Seki, M., Ihara, Y., and Aoki, K. (2012) Homogamy and imprinting-like effect on mate choice preference for body height in the current Japanese population. Annals of Human Biology 39, 28-35. doi:10.3109/03014460.2011.635695

Kobayashi, Y., Achaz, G., and Telschow, A. (2011) Effect of parasitic sex ratio distorters on host gene frequencies in a mainland-island context. Journal of Evolutionary Biology 24, 1695-1705.doi:10.1111/j.1420-9101.2011.02296.x

Yamauchi, A., and Kobayashi, Y. (2011) Joint evolution of sex ratio and reproductive group size under local mate competition with inbreeding depression. Journal of Theoretical Biology 270, 127-133.doi:10.1016/j.jtbi.2010.11.008

Kobayashi, Y., and Telschow, A. (2011) The concept of effective recombination rate and its application in speciation theory. Evolution 65, 617-628.doi:10.1111/j.1558-5646.2010.01156.x

Tamura, K., Morita, R. C., and Ihara, Y. (2011) Evolution of egalitarian punishment. Letters on Evolutionary Behavioral Science 2, 20-23. doi:10.5178/lebs.2011.14

Nojo, S., Ihara, Y., Furusawa, H., Akamatsu, S., and Ishida, T. (2011) Facial resemblance and attractiveness: an experimental study in rural Indonesia. Letters on Evolutionary Behavioral Science 2, 9-12. doi:10.5178/lebs.2011.11

Tamura, K., and Ihara, Y. (2011) Classes of communication and the conditions for their evolution. Theoretical Population Biology 79, 174-183. doi:10.1016/j.tpb.2011.03.001

Ihara, Y. (2011) Evolution of culture-dependent discriminate sociality: a gene-culture coevolutionary model. Philosophical Transactions of the Royal Society B 366, 889-900. doi:10.1098/rstb.2010.0247

Matsumoto-Oda, A., and Ihara, Y. (2011) Estrous asynchrony causes low birth rates in wild female chimpanzees. American Journal of Primatology 73, 180-188. doi:10.1002/ajp.20885

Kobayashi, Y., and Telschow, A. (2010) Cytoplasmic feminizing elements in a two-population model: infection dynamics, gene flow modification, and the spread of autosomal suppressors. Journal of Evolutionary Biology 23, 2558-2568.doi:10.1111/j.1420-9101.2010.02116.x

Kobayashi, Y., and Telschow, A. (2010) A unified theory of effective migration rate and the essence of gene flow. In Advances in Genetics Research, Volume 1 (Ed. M. A. Osborne), Nova Science Publishers. Chapter 6.

Yamauchi, A., Telschow, A., and Kobayashi, Y. (2010) Evolution of cytoplasmic sex ratio distorters: effect of paternal transmission. Journal of Theoretical Biology 266, 79-87.doi:10.1016/j.jtbi.2010.06.018

Nojo, S., Tamura, S., and Ihara, Y. (2010) Human homogamy in facial characteristics: Does sexual imprinting-like mechanism play a role? Human Nature (in press).

Kurokawa, S., Wakano, J. Y., and Ihara, Y. (2010) Generous cooperators can outperform non-generous cooperators when replacing a population of defectors. Theoretical Population Biology 77, 257-262. doi:10.1016/j.tpb.2010.03.002

Miki, T., Giuggioli, L., Kobayashi, Y., Nagata, T., and Levin, S. A. (2009) Vertically-structured prokaryotic community can control the efficiency of the biological pump in the oceans. Theoretical Ecology 2, 199-216.doi:10.1007/s12080-009-0042-8

Kimura, M., and Ihara, Y. (2009) Replicator-dynamics models of sexual conflict. Journal of Theoretical Biology 260, 90-97. doi:10.1016/j.jtbi.2009.06.003

Kurokawa, S., and Ihara, Y. (2009) Emergence of cooperation in public goods games. Proceedings of the Royal Society B 276, 1379-1384. doi:10.1098/rspb.2008.1546