Figure 3.

Results from detection experiment. Estimated rates of detection by human ‘predators’ of images of black (black circles), grey (open circles) and striped (grey circles) Tetrix subulata pygmy grasshoppers presented on a computer screen against images of natural unburned greenish (0% burnt), intermediate (50% burnt) and totally burned (100% burnt) visual backgrounds. Average percent detected grasshopper images (a). Average time to detection based on data for only those images that were detected (b). Figure shows mean ± s.e. Means with different letters are significantly different, as revealed by Student-Newman-Keuls a posteriori pair-wise comparisons of colour morph group means within each background.

Karpestam et al. BMC Ecology 2013 13:17   doi:10.1186/1472-6785-13-17
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