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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