Table 1.
Genetic variation at 597 bp of mtDNA control region (first domain) in New Zealand black-billed gull populations, calculated using only the individuals from the larger of the two main clades, shown in Figure 1, to reduce any potential bias caused by hybridisation with red-billed gulls (individuals in the smaller of the two main clades).
| Island | Region | Area/River | n | h | ɧ | π |
|---|---|---|---|---|---|---|
| North | Bay of Plenty | Rotorua | 6 | 6 | 1.000 | 0.006 |
| Wellington | Wairarapa | 7 | 4 | 0.810 | 0.006 | |
| Overall North | - | - | 13 | 7 | 0.872 | 0.006 |
| South | Marlborough | Wairau | 7 | 4 | 0.714 | 0.007 |
| West Coast | Taramakau | 5 | 3 | 0.700 | 0.003 | |
| Canterbury | Hurunui | 7 | 7 | 1.000 | 0.008 | |
| Ashburton | 6 | 5 | 0.933 | 0.005 | ||
| Ahuriri | 4 | 4 | 1.000 | 0.011 | ||
| - | - | 17 | 14 | 0.971 | 0.008 | |
| Southland | Oreti | 7 | 7 | 1.000 | 0.007 | |
| Mataura | 3 | 3 | 1.000 | 0.008 | ||
| Clifden | 6 | 5 | 0.933 | 0.009 | ||
| - | - | 16 | 13 | 0.975 | 0.008 | |
| Overall South | - | - | 45 | 24 | 0.927 | 0.007 |
| Total Overall | - | - | 58 | 25 | 0.915 | 0.007 |
n: sample size, h: number of haplotypes, ɧ: haplotype diversity, π: nucleotide diversity.