Skip to main content

Table 1 Mean reflectance scores and t test statistics comparing RGB values of slug and substrate images from forested (N = 104 images) and blanket bog (N = 71 images) habitats

From: Quantifying phenotype-environment matching in the protected Kerry spotted slug (Mollusca: Gastropoda) using digital photography: exposure to UV radiation determines cryptic colour morphs

   Forested habitats Blanket bog habitats Between-habitats t-tests
Channel Mean SD Mean SD Mean Diff. t(173) p
Slug R 111.68 20.31 53.54 15.34 58.16 21.53 <0.001
G 98.45 17.69 47.44 15.72 50.98 19.56 <0.001
B 88.95 17.96 48.66 19.71 40.27 13.99 <0.001
Substrate R 111.12 23.09 53.21 16.04 57.95 19.62 <0.001
G 94.14 21.34 50.74 16.41 43.38 15.18 <0.001
B 86.89 20.04 52.78 20.85 34.09 10.87 <0.001