Table 1 Statistical comparisons among hatchling Eremias argus lizards incubated under hypoxic (12% O 2 ), normoxic (21% O 2 ), or hyperoxic (30% O 2 ) conditions
From: Embryonic oxygen enhances learning ability in hatchling lizards
Attribute | Oxygen concentration during incubation | Test statistic | P-value | ||
|---|---|---|---|---|---|
Hypoxic | Normoxic | Hyperoxic | |||
(12% O2) | (21% O2) | (30% O2) | |||
Initial egg mass (g) | 0.466 ± 0.012 | 0.440 ± 0.013 | 0.459 ± 0.014 | F2,51 = 1.093 | 0.343 |
Incubation duration (days ± SE) | 35.67 ± 0.19a | 35.17 ± 0.19a | 34.86 ± 0.23b | F2,44 = 3.896 | 0.028 |
Egg hatching success (%, n) | 88.24 (15/17) | 90.00 (18/20) | 77.88 (14/18) | χ2 = 1.292 | 0.524 |
Initial SVL (mm ± SE) | 28.21 ± 0.325 | 27.72 ± 0.320 | 27.73 ± 0.605 | F2,44 = 0.440 | 0.647 |
30-day SVL (mm ± SE) | 33.68 ± 0.588 | 32.44 ± 0.758 | 33.25 ± 0.698 | F2,31 = 0.822 | 0.449 |
Initial mass (g ± SE) | 0.56 ± 0.015 | 0.54 ± 0.016 | 0.59 ± 0.014 | F2,43 = 1.653 | 0.203 |
30-day mass (g ± SE) | 0.93 ± 0.024 | 0.82 ± 0.058 | 0.96 ± 0.046 | F2,30 = 1.483 | 0.243 |
Survival to 30 days (%, n) | 66.67 (10/15) | 72.22 (13/18) | 78.57 (11/14) | χ2 = 0.513 | 0.774 |