Table 4 Sex-specific morphological divergences between the teydea and polatzeki Blue Chaffinches
Sex | Trait | teydea (Tenerife) | polatzeki (Gran Canaria) | Test of difference between means | Effect size Cohen’s d |
|---|---|---|---|---|---|
Males | Wing length (mm) | 102.8 ± 2.1 (118) | 96.8 ± 0.7 (16) | t 132 = 11.00, P < 0.001 | 2.95 |
Tail length (mm) | 83.9 ± 1.9 (58) | 78.2 ± 1.7 (15) | t 71 = 10.54, P < 0.001 | 3.09 | |
Bill length (mm) | 20.37 ± 1.09 (83) | 16.76 ± 0.97 (22) | t 103 = 14.16, P < 0.001 | 3.43 | |
Bill depth (mm) | 10.48 ± 0.37 (83) | 10.18 ± 0.28 (22) | t 103 = 3.54, P < 0.001 | 0.86 | |
Tarsus length (mm) | 26.31 ± 0.75 (83) | 25.87 ± 0.30 (22) | t 103 = 2.69, P < 0.01 | 0.65 | |
Body mass (g) | 32.24 ± 1.70 (109) | 28.33 ± 1.06 (22) | t 129 = 10.71, P < 0.001 | 2.52 | |
Females | Wing length (mm) | 93.5 ± 2.0 (87) | 89.2 ± 1.2 (16) | t 101 = 8.18, P < 0.001 | 2.25 |
Tail length (mm) | 75.9 ± 2.0 (42) | 72.8 ± 1.4 (15) | t 55 = 5.64, P < 0.001 | 1.73 | |
Bill length (mm) | 20.43 ± 1.30 (61) | 16.88 ± 0.82 (16) | t 75 = 10.39, P < 0.001 | 2.96 | |
Bill depth (mm) | 10.30 ± 0.37 (61) | 9.94 ± 0.27 (16) | t 75 = 3.63, P < 0.001 | 1.03 | |
Tarsus length (mm) | 25.82 ± 0.79 (61) | 25.51 ± 0.40 (17) | t 76 = 1.65, P = 0.102 | 0.46 | |
Body mass (g) | 28.8 ± 1.5 (83) | 27.1 ± 1. 4 (17) | t 98 = 4.38, P < 0.001 | 1.18 |