Colouration and Colour Changes of the Fiddler Crab, Uca capricornis: A Descriptive Study
Figure 3
Variation in the probability that any particular area of the carapace is coloured.
The standard deviation in the number of males and females in general (a) and in different size classes (b) that are coloured at each point on the carapace. Lighter greys indicate greater variation. The sample sizes are indicated at the base of each image.