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dc.contributor.author
Bonansea, Maria Ines
dc.contributor.author
Heit, Cecilia
dc.contributor.author
Vaira, Marcos
dc.date.available
2018-06-18T17:21:29Z
dc.date.issued
2017-02-15
dc.identifier.citation
Bonansea, Maria Ines; Heit, Cecilia; Vaira, Marcos; Pigment composition of the bright skin in the poison toad, Melanophryniscus rubriventris (Anura: Bufonidae) from Argentina; Deutsche Gesellschaft für Herpetologie und Terrarienkunde e.V; Salamandra; 53; 1; 15-2-2017; 142-147
dc.identifier.issn
0036-3375
dc.identifier.uri
http://hdl.handle.net/11336/49019
dc.description.abstract
The determination of the basis of skin colour is important to better understand the evolutionary and ecological relevance of colour variation in aposematic species. Significant variation in bright skin colouration can be found between and within populations of the poison toad, Melanophryniscus rubriventris. In this study, we identified the pigments present in the skin in seven populations of the species in Argentina to determine pigment composition of bright colouration. Our analysis showed that at least four different primary pigments consisting of a suite of orange-red carotenes and yellow xanthophylls contribute to the bright skin colour in different populations of the species. Four carotenoids, Astaxanthin, β-Carotene, Canthaxanthin, and Lycopene were detected by comparison with available standards in skin tissues on each population. Four carotenoids were also detected but not identified. We provide evidence that differences in colouration between individuals and populations in Melanophryniscus rubriventris cannot be merely ascribed to differences in their skin pigment profiles (i.e. pigment types). We discuss alternative explanations and stress the need of more studies on complex mechanisms and interactions affecting the expression of skin colouration in poison frogs and toads.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Deutsche Gesellschaft für Herpetologie und Terrarienkunde e.V
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Carotenoids
dc.subject
Hplc
dc.subject
Aposematism
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Amphibia
dc.subject.classification
Zoología, Ornitología, Entomología, Etología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Pigment composition of the bright skin in the poison toad, Melanophryniscus rubriventris (Anura: Bufonidae) from Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-24T15:16:46Z
dc.journal.volume
53
dc.journal.number
1
dc.journal.pagination
142-147
dc.journal.pais
Alemania
dc.journal.ciudad
Mannheim
dc.description.fil
Fil: Bonansea, Maria Ines. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Heit, Cecilia. Universidad Nacional de Jujuy; Argentina
dc.description.fil
Fil: Vaira, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; Argentina
dc.journal.title
Salamandra
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.salamandra-journal.com/index.php/home/contents/2017-vol-53/1814-bonansea-m-i-c-heit-m-vaira
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