Melanin Ornaments, Honesty, and Sexual Selection

Jawor, Jodie M.; Breitwisch, Randall

doi:10.1642/0004-8038(2003)120[0249:mohass]2.0.co;2

Cited by 215 publications

(155 citation statements)

References 124 publications

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“…Th ese data suggest rigidity in the migration schedule, perhaps evolved to best exploit a predictable peak of fuelling resources or favourable wind conditions 5 necessary for the southbound fl ight. 17 . Th e extremely variable breeding plumage of male godwits has led to the hypothesis that redder males may be of higher quality, and therefore may migrate earlier than paler males 18 .…”

Section: Timing Of Migration Godwitsmentioning

confidence: 99%

Breeding latitude drives individual schedules in a trans-hemispheric migrant bird

et al. 2010

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Section: Timing Of Migration Godwitsmentioning

confidence: 99%

Breeding latitude drives individual schedules in a trans-hemispheric migrant bird

et al. 2010

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“…The possibility that melanized secondary sexual traits are used as honest indicators of quality is currently receiving more attention (Jawor & Breitwisch 2003) but see Badyaev & Hill (2000). On the other hand, if there are low negative pleiotropic effects of MC1R variants, this would increase the frequency of their occurrence in plumage evolution.…”

Section: Why Mc1r?mentioning

confidence: 99%

“…Melanins have a wide range of functions in birds, including physical protection (Barrowclough & Sibley 1980;Burtt 1986), protection from parasites (Goldstein et al 2004), camouflage and a variety of signalling functions (Bó kony et al 2003;Jawor & Breitwisch 2003;Roulin 2004). Here I review recent studies on the molecular genetic basis of melanism in birds that provide a framework for future studies involving more complex phenotypic changes both within and between species.…”

Section: Introductionmentioning

confidence: 99%

A window on the genetics of evolution:MC1Rand plumage colouration in birds

2005

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Melanins are a ubiquitous component of plumage colouration in birds and serve a wide variety of functions. Although the genetic control of melanism has been studied in chickens and other domestic species, little was known about the molecular genetics of melanin distribution in wild birds until recently. Studies have now revealed that a single locus, the melanocortin-1 receptor (MC1R) locus, is responsible for melanic polymorphisms in at least three unrelated species: the bananaquit, the snow goose and the arctic skua. Results show that melanism was a derived trait and allow other evolutionary inferences about the history of melanism to be made. The role of MC1R in plumage patterning is surprisingly diverse among different species. The conserved molecular basis for the evolution of melanism in birds and several other vertebrates is probably related to low pleiotropic effects at the MC1R.

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“…These 'area' signals are often termed 'conventional' or 'badges of status' (Guilford & Dawkins 1995). Recent studies suggest that rank markings must be costly to their bearers because only high-quality individuals can support the social costs of increased aggression from other individuals (reviewed in Jawor & Breitwisch 2003).…”

mentioning

confidence: 99%

Facial markings in the hover wasps: quality signals and familiar recognition cues in two species of Stenogastrinae

et al. 2013

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Keywords:animal communication badge of status conventional signal dominance hierarchy hover wasp Liostenogaster flavolineata Liostenogaster vechti quality signal recognition system social behaviour Both recognition and conventional signals are widespread in the animal kingdom. Chemical communication plays a major role in invertebrates, and especially in social insects. In the last decade, observational and experimental evidence has shown the existence of visual quality signals and individual recognition cues in Polistes paper wasps, meaning that visual communication might also be common in insect societies. Here we show that two species of facultatively eusocial hover wasps (Vespidae, Stenogastrinae) use the visual channel for social communication. By combining morphoanatomical measurements and behavioural assays, we found that the size of the dark facial markings was related to reproductive status and dominance in colonies of Liostenogaster vechti, thus representing a badge of status. By contrast, no correlation between facial coloration and reproductive status was found in Liostenogaster flavolineata, which instead used facial markings as familiar visual recognition cues. Our results reveal that visual communication in social insects might be more widespread than previously thought and has evolved independently in distinct wasp taxa facing similar selection pressures. Ó

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Melanin Ornaments, Honesty, and Sexual Selection

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 215 publications

References 124 publications

Breeding latitude drives individual schedules in a trans-hemispheric migrant bird

Breeding latitude drives individual schedules in a trans-hemispheric migrant bird

A window on the genetics of evolution:MC1Rand plumage colouration in birds

Facial markings in the hover wasps: quality signals and familiar recognition cues in two species of Stenogastrinae

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