Table 1.
Island populations of G. magnirostris genotyped from historical collections and compared with recently sampled existing (reference) populations from Fernandina, Isabela, Santiago, Santa Cruz, Rábida, Pinta, Marchena and Genovesa. Data for references are averages among reference populations. He, expected heterozygosity.
| island | date | museum number | average quality | He (%) | genetic distances DA (range) | genetic differentiation |
|---|---|---|---|---|---|---|
| references (n = 96) | 1997–2006 | — | 9.5 | 60–68 | 0.25 (0.09–0.39) | — |
| Floreana (n = 3) | 1835 | BNHM1837.2.21 (−0.398, −0.402, −403) | 6.3 | 65 | 0.63 (0.57–0.68) | highly distinct |
| San Cristóbal (n = 6) | 1835 | BNHM1855.12.19. (−80, −81, −83, −104, −113); 1837.2.21.396 | 5.4 | 68 | 0.67 (0.61–0.71) | highly distinct |
| Darwin (n = 6) | 1906 | AMNH516875-82 | 7.1 | 60 | 0.53 (0.34–0.70) | distinct |
| Wolf (n = 15) | 1906 | AMNH516976-90; 517047 | 7.6 | 60 | 0.41 (0.34–0.53) | distinct |