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Table 5 Component populations as percent of total: alternative preference patterns with repeated 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

66.5

49.4

32.6

18.3

8.6

3.2

0.8

  M/N

16.7

27.7

34.6

38.3

39.8

40.6

41.0

41.2

  U/N

0.0

5.8

16.0

29.2

41.9

50.9

55.9

58.0

Isolation

  H/N

83.3

69.4

57.9

48.2

40.2

33.5

27.9

23.3

  M/N

16.7

30.6

42.1

51.8

59.8

66.5

72.1

76.7

  U/N

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

Partial disc.

  H/N

83.3

68.0

53.7

40.1

27.7

17.2

9.4

4.4

  M/N

16.7

29.1

38.3

44.4

48.0

49.9

50.5

50.5

  U/N

0.0

2.9

8.0

15.5

24.3

32.9

40.0

45.1

Adaptation

  H/N

83.3

68.5

53.9

38.1

23.5

12.2

5.0

1.5

  M/N

16.7

29.6

38.3

42.3

43.6

43.4

42.7

42.2

  U/N

0.0

1.9

7.7

19.6

32.9

44.4

52.3

56.2

  1. Immigration commences 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