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Effect of colour treatment on the probability of using dark asphalt versus pale pavement (corrected for the effect of original colour). Black dots are model-estimated medians. Error bars denote 95% CI. Grasshopper photographs positioned next to each bar illustrate the external appearance of individuals after a white-paint (left bottom) and a black-paint (right upper) treatment (both become a bit paler after drying up). Photos: Alberto Sanabria-Fernández. (Online version in colour.)
