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. 2023 Jul 26;290(2003):20231160. doi: 10.1098/rspb.2023.1160

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© 2023 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 2. — Relative detectability and boldness of 13 dorid nudibranch species. The strength of chemical defences is indicated by colours relative to the class of chemical defence. (a) Species median detectability quantified as the abundance-weighted coefficient of variation of achromatic local edge contrast (Lum.CoV) measured relative to the natural background of every individual. (b) Species median detectability quantified as the abundance-weighted coefficient of variation of chromatic local edge contrast (Col.CoV) measured relative to the natural background of every individual. (c) Species median achromatic pattern boldness measured as the abundance weighted coefficient of variation of each animal's achromatic local edge contrast (Lum.CoV). (d) Species median chromatic pattern boldness measured as the abundance-weighted coefficient of variation of each animal's chromatic local edge contrast (Col.CoV).