Body size is not correlated with the evolution of male coloration in darters (Percidae: Etheostomatinae)

被引:0
作者
Ciccotto, Patrick J. [1 ,2 ]
Mendelson, Tamra C. [3 ]
机构
[1] Warren Wilson Coll, Dept Biol, Swannanoa, NC 28778 USA
[2] Florida Museum Nat Hist, Gainesville, FL 32611 USA
[3] Univ Maryland Baltimore Cty, Dept Biol Sci, Baltimore, MD 21250 USA
关键词
ecological selection; Etheostoma; Percina; phylogenetic comparative method; sexual dichromatism; total length; SEXUAL SELECTION; NUPTIAL COLOR; CONSTRAINTS; DIVERGENCE; TRAIT;
D O I
10.1093/biolinnean/blac050
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Coloration and body size are among the many morphological traits that vary among fish lineages. Elaborate coloration and body size covary in other animal groups, but relationships between these two morphological characteristics have not been rigorously examined in fishes. We formally test for correlations between coloration and body size in darters (Percidae: Etheostomatinae), a group of North American freshwater fishes that vary in the presence of male coloration and maximum body size. Although uncorrected analyses indicate a significant correlation between colour traits and body size in darters, phylogenetically corrected logistic regression models and ANOVAs revealed no significant correlations, suggesting body size does not act as a constraint on elaborate coloration or vice versa. These results are discussed in an ecological and behavioural context.
引用
收藏
页码:436 / 442
页数:7
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