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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

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Frontiers in Zoology

ISSN: 1742-9994