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Table 3 Component populations as percent of total: four alternative preference patterns with one-time immigration (ϕ = 0.20)

From: Immigration and the rate of population mixing: explorations with a stylized model

  Generation (t)
  0 1 2 3 4 5 6 7
Indifference
H/N 83.3 79.9 73.5 62.9 48.7 33.6 20.1 10.0
M/N 16.7 13.2 9.2 5.1 1.7 0.3 0.0 0.0
U/N 0.0 7.0 17.3 32.0 49.5 66.1 79.9 90.0
Isolation
H/N 83.3 83.3 83.3 83.3 83.3 83.3 83.3 83.3
M/N 16.7 16.7 16.7 16.7 16.7 16.7 16.7 16.7
U/N 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Partial disc.
H/N 83.3 81.6 78.1 71.9 63.0 52.0 39.9 27.7
M/N 16.7 15.0 12.4 8.9 5.3 2.6 1.1 0.3
U/N 0.0 3.4 9.5 19.1 31.7 45.3 59.1 72.0
Adaptation
H/N 83.3 82.2 79.1 72.3 61.7 47.8 32.7 19.3
M/N 16.7 15.6 12.8 9.0 5.0 2.1 0.5 0.1
U/N 0.0 2.2 8.1 18.8 33.3 50.1 66.8 80.6
  1. All immigration takes place at t = 0. See text and Table 1 or 2 for specifications of P matrices for indifference, isolation, and partial discrimination. The matrix for adaptation changes linearly from isolation at t = 0 to indifference at t = 3 and remains fixed thereafter