Fig. 6From: Extensive range overlap between heliconiine sister species: evidence for sympatric speciation in butterflies?Similarity in aposematic wing pattern (a), host plant use (b) and climatic niches (c) between sister species, plotted against phylogenetic branch length. Colours represent the degree of range overlap between the sisters: blue = range overlap < 0.05, red = range overlap > 0.95, with yellow indicating intermediate levels of range overlap)Back to article page