Table 4. Inter-population migration rates, population growth, and effective population sizes for the different ethnic groups from the Chad Basin.
| CA | SA | Bu | Fa | BF | TF | Hi | Kb | Ka | Ko | Ms | Mf | |
| Migration rates | ||||||||||||
| CA | − | 163.3 | 110.4 | 173.3 | 216.2 | 119.3* | 67.0 | 166.9* | 70.5 | 112.1 | 96.1 | 76.1 |
| SA | 88.5 | − | 41.9 | 152.0 | 231.9 | 83.6 | 69.1* | 28.2 | 107.1 | 93.2 | 109.4 | 74.7 |
| Bu | 135.8 | 36.1 | − | 108.8 | 79.5 | 66.1 | 94.1 | 346.1* | 53.1 | 104.0* | 89.2 | 159.9* |
| Fa | 59.9* | 121.2 | 43.6 | − | 163.9 | 122.7 | 243.9 | 123.1 | 87.1 | 87.1 | 59.0 | 86.0 |
| BF | 189.7* | 270.7 | 23.7 | 319.2 | − | 140.3 | 19.9 | 45.3 | 69.8 | 51.4 | 189.9 | 63.0 |
| TF | 60.2 | 61.9 | 36.6 | 162.8 | 154.0 | − | 117.9 | 50.3 | 95.4 | 76.7 | 153.0 | 50.6 |
| Hi | 74.1 | 143.5* | 139.3 | 55.9 | 24.9 | 201.6 | − | 163.7* | 71.0 | 198.5* | 486.9* | 152.6* |
| Kb | 404.9* | 81.0 | 575.2* | 232.4 | 25.6 | 69.4 | 96.9* | − | 109.1 | 76.7 | 82.6 | 112.7* |
| Ka | 69.0 | 161.4 | 99.3 | 156.5 | 361.1 | 119.1 | 66.6 | 144.1 | − | 138.5 | 647.0 | 63.6 |
| Ko | 98.1 | 97.0 | 73.9 | 110.1 | 53.7 | 95.0 | 116.2* | 113.7 | 100.1 | − | 202.9* | 113.1 |
| Ms | 140.5 | 219.9* | 91.5 | 327.5 | 91.0 | 174.9 | 62.9* | 74.8 | 104.0 | 195.3 | − | 146.4 |
| Mf | 146.4 | 105.8 | 136.0 | 79.5 | 130.1 | 115.8 | 193.8* | 144.2 | 27.5 | 103.1 | 90.2 | − |
| Theta | 0.017* | 0.026* | 0.181* | 0.014* | 0.012* | 0.018* | 0.025* | 0.038* | 0.066* | 0.023* | 0.012* | 0.050* |
| N e (females) | 520,600 | 769,100 | 5,423,000 | 414,700 | 362,800 | 545,800 | 740,400 | 1,136,000 | 1,977,900 | 677,100 | 359,200 | 1,498,000 |
| Growth | −138.66 | 252.15 | 311.13* | 150.23* | −48.97* | −64.94 | 91.96* | 41.77 | 64.25 | 20.38 | 131.07 | 147.53* |
Migration rates: numbers indicate the gene flow from each population group (as indicated in the first column) into the other populations (as indicated in the first row); for instance, 88.5 would be the migration rate from Shuwa Arabs into Chad Arabs. Population codes are as indicated in Table 1. Stars indicate estimates that have to be taken with care due to limited sample sizes (as inferred by Lamarc).