Generating Anthropological and Archeological Hypotheses in Okinawa through Agent-Based Simulation
Figure 1 . Difference in the total number of agents depending on the speed of agricultural diffusion .
3.2 Difference in the Proportion of People with Immigrant Traits and the Frequency of mtDNA Haplogroup D4 Depending on the Marriage Institution and the Speed of Agricultural Diffusion
Cases of Monogamous Marriage : In the proportion of people with immigrant traits and the frequency of mtDNA haplogroup D4 400 years later , all cases of monogamous marriage did not reach 80 % of the proportion of people with immigrant traits , which is a measure of demographic transition and 35 % of the frequency of mtDNA haplogroup D4 ( Figure 2 ). In general , cases in which the speed of the diffusion of agriculture was slow ( e . g ., a narrow [ one cell ] range of diffusion cells and a difficult introduction rate [ 0.1 %]) indicated a higher proportion of people with immigrant traits and a higher frequency of mtDNA haplogroup D4 . Conversely , cases in which the speed of the diffusion of agriculture was rapid ( e . g ., a wide [ five cells ] range of diffusion cells and an easy introduction rate [ 1 %]) indicated a lower proportion of people with immigrant traits and a lower frequency of mtDNA haplogroup D4 . Demographic transition did not occur because once agriculture had diffused among native people at an early stage , their population increased at a high rate of agricultural population growth .
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