Research Topics
| Kenichi AokiSummaryAffiliation: University of Tokyo Country: Japan Publications
| Collaborators |
Detail Information
Publications
Sexual selection as a cause of human skin colour variation: Darwin's hypothesis revisitedKenichi Aoki
Department of Biological Sciences, The University of Tokyo, Bunkyoku, Tokyo, Japan
Ann Hum Biol 29:589-608. 2002..Such a preference would generate sexual selection for light skin that counteracts natural selection for dark skin. The observed latitudinal gradient in skin colour may result from the balance between natural and sexual selection...
Evolution of social learning: a mathematical analysisJoe Yuichiro Wakano
Department of Biological Sciences, The University of Tokyo, Hongo 7 3 1, Bunkyoku, Tokyo 113 0033, Japan
Theor Popul Biol 66:249-58. 2004..Our results are consistent with the predictions of previous studies. In addition, we identify a critical level of environmental constancy below which only individual and social learners are present...
Evolutionarily stable learning schedules and cumulative culture in discrete generation modelsKenichi Aoki
Department of Biological Sciences, The University of Tokyo, Hongo 7 3 1, Bunkyo ku, Tokyo 113 0033, Japan
Theor Popul Biol 81:300-9. 2012..Moreover, we find for each situation that the evolutionarily stable learning schedule is also the one that optimizes the learned phenotype at equilibrium...
Rates of cultural change and patterns of cultural accumulation in stochastic models of social transmissionKenichi Aoki
Department of Biological Sciences, The University of Tokyo, Hongo 7 3 1, Bunkyoku, Tokyo 113 0033, Japan
Theor Popul Biol 79:192-202. 2011..We compare our findings with those predicted by prevailing theories for rates of cultural change and the distribution of cultural variation...
Evolution of the social-learner-explorer strategy in an environmentally heterogeneous two-island modelKenichi Aoki
Department of Biological Sciences, The University of Tokyo, Hongo 7 3 1, Bunkyoku, Tokyo, Japan
Evolution 64:2575-86. 2010....
Evolution of learning in subdivided populations that occupy environmentally heterogeneous sitesKenichi Aoki
Department of Biological Sciences, University of Tokyo, Hongo 7 3 1, Bunkyoku, Tokyo 113 0033, Japan
Theor Popul Biol 74:356-68. 2008..The successive peaks of the transient spatial distributions of the number of individual learners occur at initially empty sites...
Do social learning and conformist bias coevolve? Henrich and Boyd revisitedJoe Yuichiro Wakano
Department of Biological Sciences, The University of Tokyo, Hongo 7 3 1, Tokyo 113 0033, Japan
Theor Popul Biol 72:504-12. 2007..In conclusion, the conditions favoring a heavy reliance on social learning are not the same as those favoring a strong conformist bias...
A mixed strategy model for the emergence and intensification of social learning in a periodically changing natural environmentJoe Yuichiro Wakano
Department of Biological Sciences, The University of Tokyo, Hongo 7-3-1, Tokyo, Japan
Theor Popul Biol 70:486-97. 2006....
Innovativeness, population size and cumulative cultural evolutionYutaka Kobayashi
Department of Biological Sciences, The University of Tokyo, Hongo 7 3 1, Tokyo 113 0033, Japan
Theor Popul Biol 82:38-47. 2012..When the number of acquaintances is small relative to the population size, we find that a change in the innovation rate contributes more than a proportional change in population size to the cumulative cultural evolution of skill level...
Homogamy and imprinting-like effect on mate choice preference for body height in the current Japanese populationMotohide Seki
Department of Biological Sciences, The University of Tokyo, Hongo 7 3 1, Bunkyoku, Tokyo 113 0033, Japan
Ann Hum Biol 39:28-35. 2012..Homogamy for body height has been repeatedly documented in Western societies. Nevertheless, the underlying mechanism is unclear and the reasons for its apparent absence in non-Western societies remain unexplained...
On Richerson and Boyd's model of cultural evolution by sexual selectionAyako Nakajima
Department of Biological Sciences, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan
Theor Popul Biol 61:73-81. 2002..Nevertheless, the cultural processes can support a stable polymorphic equilibrium at which the choosy females are present. Also of interest are the cyclical dynamics observed in the neighborhood of the internal equilibrium...
Cultural coevolution of norm adoption and enforcement when punishers are rewarded or non-punishers are punishedJeremy Kendal
Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA
Theor Popul Biol 70:10-25. 2006..Furthermore, for each metanorm, a population of norm-adopters who always observe the norm can be locally stable over a continuum of punishment frequencies...
Evolution of learning in fluctuating environments: when selection favors both social and exploratory individual learningElhanan Borenstein
Department of Biological Sciences, Stanford University, Stanford, California 94305, USA
Evolution 62:586-602. 2008....
