ArticlePloS one2014
The neuro-hormonal control of rapid dynamic skin colour change in an amphibian during amplexus.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- It's not easy being green: Comparing typical skin colouration among amphibians with colour abnormalities associated with chromatophore deficits.Ecology and evolution · 2024Article
- Neurotransmitter norepinephrine regulates chromatosomes aggregation and the formation of blotches in coral trout Plectropomus leopardus.Fish physiology and biochemistry · 2024Article
- Evidence that catecholaminergic systems mediate dynamic colour change during explosive breeding events in toads.Biology letters · 2022Article
- Role of Amine Neurotransmitters and Their Receptors in Skin Pigmentation: Therapeutic Implication.International journal of molecular sciences · 2021Review
- Article
- A novel method for the measurement of glucocorticoids in dermal secretions of amphibians.Conservation physiology · 2018Article
- Comparison of photo-matching algorithms commonly used for photographic capture-recapture studies.Ecology and evolution · 2017Article
- Colour and pattern change against visually heterogeneous backgrounds in the tree frog Hyla japonica.Scientific reports · 2016Article
- Dynamic color change in the grouperBehavioral ecology : official journal of the International Society for Behavioral EcologyArticle
- Background color matching affects sexual behavior, growth, and mortality rate in an African cichlid.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sexual signalling using dynamic skin colouration is a key feature in some vertebrates; however, it is rarely studied in amphibians. Consequently, little is known about the hormonal basis of this interesting biological phenomenon for many species. Male stony creek frogs (Litoria wilcoxii) are known to change dorsal colouration from brown to lemon yellow within minutes. This striking change is faster then what has been seen most amphibians, and could therefore be under neuronal regulation, a factor that is rarely observed in amphibians. In this study, we observed colour changes in wild frogs during amplexus to determine the natural timing of colour change. We also investigated the hypothesis that colour change is mediated by either reproductive or neuro- hormones. This was achieved by injecting frogs with epinephrine, testosterone, saline solution (control 1) or sesame oil (control 2). A non-invasive approach was also used wherein hormones and controls were administered topically. Male frogs turned a vivid yellow within 5 minutes of initiation of amplexus and remained so for 3-5 hours before rapidly fading back to brown. Epinephrine-treated frogs showed a significant colour change from brown to yellow within 5 minutes, however, testosterone-treated frogs did not change colour. Our results provide evidence of the role neuronal regulation plays in colour change systems.
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