气候变化领域集成服务门户(CCPortal): Colour pattern divergence in reef fish species is rapid and driven by both range overlap and symmetry

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DOI	10.1111/ele.13180
	Colour pattern divergence in reef fish species is rapid and driven by both range overlap and symmetry
	Hemingson C.R.; Cowman P.F.; Hodge J.R.; Bellwood D.R.
发表日期	2019
ISSN	1461023X
卷号	22 期号:1
英文摘要	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 250 000 sample points on each fish image. Surprisingly, evolutionary age did not affect colour pattern dissimilarity between species pairs, with average differences arising in just 300 000 years. However, the effect of range overlap and range symmetry was significant. Species-pair colour patterns become more different with increasing overlap, but only when ranges are similar in size. When ranges differ markedly in area, species-pair colour patterns become more similar with increasing overlap. This suggests that species with small ranges may maintain non-colour-based species boundaries. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Age; colours; divergence; overlap; patterns; reef fishes; signals; symmetry
语种	英语
scopus关键词	Anthozoa; Chaetodon; Chaetodontidae; Pisces; animal; Anthozoa; color; coral reef; evolution; fish; Animals; Anthozoa; Biological Evolution; Color; Coral Reefs; Fishes
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121196
作者单位	College of Science and Engineering, James Cook University, Townsville, 4811, Australia; ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, 4811, Australia; Department of Evolution and Ecology, University of California Davis, Davis, CA 95616, United States
推荐引用方式 GB/T 7714	Hemingson C.R.,Cowman P.F.,Hodge J.R.,et al. Colour pattern divergence in reef fish species is rapid and driven by both range overlap and symmetry[J],2019,22(1).
APA	Hemingson C.R.,Cowman P.F.,Hodge J.R.,&Bellwood D.R..(2019).Colour pattern divergence in reef fish species is rapid and driven by both range overlap and symmetry.Ecology Letters,22(1).
MLA	Hemingson C.R.,et al."Colour pattern divergence in reef fish species is rapid and driven by both range overlap and symmetry".Ecology Letters 22.1(2019).