2018
DOI: 10.1111/ele.13180
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Colour pattern divergence in reef fish species is rapid and driven by both range overlap and symmetry

Abstract: Signal divergence is an important process underpinning the diversification of lineages. Research has shown that signal divergence is greatest in species pairs that possess high geographic range overlap. However, the influence of range‐size differences within pairs is less understood. We investigated how these factors have shaped signal divergence within brightly coloured coral reef butterflyfishes (genus: Chaetodon). Using a novel digital imaging methodology, we quantified both colouration and pattern using 25… Show more

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Cited by 37 publications
(29 citation statements)
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References 71 publications
(136 reference statements)
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“…patternize used these values to extract the presence and distribution of red pattern elements across the dorsal side of each forewing. “Offset” values were incrementally increased until coloured areas included as much of the red forewing pigmentation as possible, while minimizing the amount of background “noise” included (Hemingson et al., 2019). The final values were 0.24 for H. erato and 0.35 for H. melpomene .…”
Section: Methodsmentioning
confidence: 99%
“…patternize used these values to extract the presence and distribution of red pattern elements across the dorsal side of each forewing. “Offset” values were incrementally increased until coloured areas included as much of the red forewing pigmentation as possible, while minimizing the amount of background “noise” included (Hemingson et al., 2019). The final values were 0.24 for H. erato and 0.35 for H. melpomene .…”
Section: Methodsmentioning
confidence: 99%
“…Bar patterns are presumably adaptive as such disruptive coloration breaks the outline of the individual and thereby constitutes a form of camouflage, in particular in visually complex habitats (Seehausen et al, 1999;Maan and Sefc, 2013). Additionally color patterns are often involved in species recognition (Hemingson et al, 2019).…”
Section: Introductionmentioning
confidence: 99%
“…While genetic comparisons with P.guezei are not possible without appropriate tissue samples from that species, we expect that the genetic divergence between that species and P.geminus to be even greater than that between P.geminus and P.basabei . The disparity between the degree of difference in color relative to the genetic difference is striking in comparison to many species of butterflyfishes, which tend to have more substantial color differences relative to genetic differences (Hemingson et al 2018).…”
Section: Discussionmentioning
confidence: 99%