Showing Red: Male Coloration Signals Same-Sex Rivals in an Australian Water Dragon

Baird, Troy A.; Baird, Teresa D.; Shine, Richard

doi:10.1655/herpetologica-d-12-00079r1

Cited by 22 publications

(13 citation statements)

References 47 publications

(74 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, male ornaments such as bright colors have traditionally been categorized as targets of female choice, and the effect of male-male competition on their evolution is less understood (Andersson 1994). Such ornaments though are involved in male-male competition across a wide range of taxa, as attested by numerous studies (e.g., Ligon et al 1990;Mateos and Carranza 1997;Benson and Basolo 2006;Bajer et al 2011;Crothers et al 2011;Baird et al 2013).…”

Section: Introductionmentioning

confidence: 95%

Intrasexual competition underlies sexual selection on male breeding coloration in the orangethroat darter, Etheostoma spectabile

Zhou

Fuller

2016

Ecology and Evolution

View full text Add to dashboard Cite

Elaborate, sexually dimorphic traits are widely thought to evolve under sexual selection through female preference, male–male competition, or both. The orangethroat darter (Etheostoma spectabile) is a sexually dichromatic fish in which females exhibit no preferences for male size or coloration. We tested whether these traits affect individual reproductive success in E. spectabile when multiple males are allowed to freely compete for a female. The quality and quantity of male coloration were associated with greater success in maintaining access to the female and in spawning as the primary male (first male to participate). On the other hand, sneaking behavior showed little correlation with coloration. Male breeding coloration in E. spectabile may therefore demonstrate how intrasexual competition can be a predominant factor underlying the evolution of male ornaments.

show abstract

Section: Introductionmentioning

confidence: 95%

Intrasexual competition underlies sexual selection on male breeding coloration in the orangethroat darter, Etheostoma spectabile

Zhou

Fuller

2016

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…Overall, the effects of dummy type in our experiments were rather weak in comparison to several other studies, which examined response times and aggression rates to presentations of dummies, video images or manipulated live stimuli. For instance, male lizards of the species Intellagama lesueurii (Gray, 1831) responded to models with red ventral coloration with longer latency and fewer displays and approaches compared to brown colored models (Baird et al, 2013), and male stickleback fish performed more attacks against moderately colored than against brightly colored video images (Rowland et al, 1995a). In experiments using live stimuli, juvenile Gouldian finches were slower to initiate contests with males whose heads were painted red than with black-or blue-painted males (Pryke, 2009), and male sticklebacks were quicker to start aggressive behaviors when the red belly color of their opponents was masked by the light environment than when it was visible to them (Baube, 1997).…”

Section: Discussionmentioning

confidence: 99%

Wasteful carotenoid coloration and its effects on territorial behavior in a cichlid fish

et al. 2020

View full text Add to dashboard Cite

The famously diverse body coloration of cichlid fish serves communicative functions in mating and social interactions including competition for resources. Here, we examined the effects of a color pattern trait-the width of a yellow bar on a black body-on territorial competition in males and females of a color variant (''Ikola'') of the Lake Tanganyika cichlid Tropheus. First, measuring integumentary carotenoid concentrations in the yellow and black body regions, we established that wider yellow bars require more carotenoids allocated to body coloration. However, we also detected high carotenoid concentrations in the black body regions ([ 100 lg/g fresh skin), raising questions about the function of nondisplayed integumentary carotenoids. Behavioral experiments showed that fish with wider bars were quicker to explore an unfamiliar area of the tank. In experiments including presentations of fish dummies, the bar width of 'territorial' dummies had no effect on the latency time which test fish took to intrude into the dummies' territories. However, male test fish performed fewer aggressive acts against wide-barred than against narrow-barred dummy competitors. Our results suggest that intimidation by wide bars as well as correlations between bar width and explorative behavior may contribute to mediating success in territorial Tropheus ''Ikola''.

show abstract

“…They are found in abundance both across their native riparian habitat (ranging from northern Queensland to north‐eastern Victoria) and across human‐dominated landscapes (including urban and suburban locations (Baird, Baird, & Shine, ; Gardiner, Doran, Strickland, Carpenter‐Bundhoo, & Frère, ). Eastern water dragons display male‐biased sexual dimorphism with males having larger heads and jaws and displaying red ventral coloration (Baird, Baird, & Shine, ; Cuervo & Shine, ; Thompson, ). In addition, males exhibit alternative mating strategies by either aggressively defending a territory or assuming satellite behaviour (Baird et al, ), whilst female dragons are polyandrous (Frère, Chandrasoma, & Whiting, ).…”

Section: Methodsmentioning

confidence: 99%

How sexual and natural selection shape sexual size dimorphism: Evidence from multiple evolutionary scales

et al. 2019

View full text Add to dashboard Cite

Sexual size dimorphism (SSD) is pervasive across taxa and reflects differences in the effects of sexual and natural selection on body size between the sexes. However, disentangling the complex eco‐evolutionary interactions between these two mechanisms remains a major challenge for biologists. Here, we combine macro‐evolutionary (between‐species), local evolutionary (between‐population) and fine‐scale evolutionary (within‐population) patterns of SSD to explore how sexual and natural selection interact and shape the evolution of SSD in Australian agamid lizards. Australian agamid lizards show substantial variation in SSD, ecological traits and species density making them an ideal study system to address this question. At the between‐species level, population density, ecological generalism and mean species size significantly predict SSD variation; however, only ecological generalism was found to significantly explain variation in larger‐than‐average male‐biased SSD. At the population level, density positively correlated with SSD in native habitats, but not city park habitats. Last, agonistic behaviour acted as the primary driver of SSD at the within‐population level. Our results indicate how sexual and natural selection can interact at different evolutionary scales, and show the importance of considering both selective mechanisms when investigating patterns of SSD. A plain language summary is available for this article.

show abstract

Showing Red: Male Coloration Signals Same-Sex Rivals in an Australian Water Dragon

Cited by 22 publications

References 47 publications

Intrasexual competition underlies sexual selection on male breeding coloration in the orangethroat darter, Etheostoma spectabile

Intrasexual competition underlies sexual selection on male breeding coloration in the orangethroat darter, Etheostoma spectabile

Wasteful carotenoid coloration and its effects on territorial behavior in a cichlid fish

How sexual and natural selection shape sexual size dimorphism: Evidence from multiple evolutionary scales

Contact Info

Product

Resources

About