Intraspecific Colour Variation among Lizards in Distinct Island Environments Enhances Local Camouflage.

Local adaptation of camouflage Tests 5 and 6 reported a highly significant interaction effect on JNDs (i.e., lizard-background comparisons) between the lizard island populations and the island backgrounds with which they were compared (‘compared island’ background), which explained most of the variance in the achromatic model ( Fig 4 ; Figure A in S3 File ; chromatic : F 10.372, 738.991 = 5.003, P < 0.001, η2 = 0.066; achromatic : F 6.366, 453.585 = 30.813, P < 0.001, η2 = 0.302).

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