Table 1 LAB colour measurements (L, a, b) of background pictures used in experiments (except for natural dark backgrounds that were just used for colour reference) to test whether O. machadoi and B. martinsi tadpoles respond to background colour in the absence of predator cues and after an aversive stimulus. *Manipulated backgrounds.
LAB channel | Background colours | |||
---|---|---|---|---|
Yellow | Blue* | Dark* | Dark | |
L | 165.7 ± 36.1 | 131.5 ± 30.1 | 41.9 ± 32.4 | 37.4 ± 18.6 |
a | 137.4 ± 4.6 | 130.8 ± 5.1 | 132.5 ± 3.5 | 132.0 ± 3.3 |
b | 168.8 ± 9.9 | 87.3 ± 10.4 | 169.5 ± 10.5 | 140.9 ± 9.0 |