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dc.contributor.author
Bonansea, Maria Ines  
dc.contributor.author
Vaira, Marcos  
dc.date.available
2023-05-24T14:09:07Z  
dc.date.issued
2012-01  
dc.identifier.citation
Bonansea, Maria Ines; Vaira, Marcos; Geographic and intrapopulational variation in colour and patterns of an aposematic toad, Melanophryniscus rubriventris (Amphibia, Anura, Bufonidae); Brill Academic Publishers; Amphibia-Reptilia; 33; 1; 1-2012; 11-24  
dc.identifier.issn
0173-5373  
dc.identifier.uri
http://hdl.handle.net/11336/198563  
dc.description.abstract
The aposematic toad genus Melanophryniscus is a polymorphic group with noticeable variation in colour and pattern. Here, we objectively evaluate variation in spectral reflectance and quantify variation in patterning within and among populations of the species M. rubriventris in NW Argentina. We conducted spectrophotometric analysis on 69 individuals and recorded dorsal and ventral pattern morphs of 727 individuals from six populations. We found high divergence in the reflectance spectra, the extent of brightly coloured areas, and the skin alkaloid profiles with no correlation among coloration varieties, alkaloid profiles, and the geographic distance between populations. Our analyses imply subdivision of sampled populations groupings based mostly on different dorsal colorations. Our results also reveal that populations with very similar patterns may differ markedly in colour and vice versa. It is striking that these aposematic toads show a pronounced variation in colour and patterning among and within populations showing individuals with a conspicuous bright dorsal colouration but also morphs with a rather cryptic black or drab colouration. However, the known presence of several alkaloids classes in all populations suggests that all morphs might be equally unpalatable.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Brill Academic Publishers  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
ALKALOIDS  
dc.subject
POISON TOAD  
dc.subject
POLYMORPHISM  
dc.subject
SPECTRAL REFLECTANCE  
dc.subject.classification
Zoología, Ornitología, Entomología, Etología  
dc.subject.classification
Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Geographic and intrapopulational variation in colour and patterns of an aposematic toad, Melanophryniscus rubriventris (Amphibia, Anura, Bufonidae)  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-04-20T12:30:48Z  
dc.journal.volume
33  
dc.journal.number
1  
dc.journal.pagination
11-24  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Bonansea, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina  
dc.description.fil
Fil: Vaira, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina  
dc.journal.title
Amphibia-Reptilia  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://brill.com/view/journals/amre/33/1/article-p11_2.xml?language=en  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1163/156853811X619754