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dc.contributor.author
Quiroga, Maria Fernanda  
dc.contributor.author
Bonansea, Maria Ines  
dc.contributor.author
Vaira, Marcos  
dc.date.available
2023-03-28T16:02:58Z  
dc.date.issued
2011-01  
dc.identifier.citation
Quiroga, Maria Fernanda; Bonansea, Maria Ines; Vaira, Marcos; Population diet variation and individual specialization in the poison toad, Melanophryniscus rubriventris (Vellard, 1947); Brill Academic Publishers; Amphibia-Reptilia; 32; 2; 1-2011; 261-265  
dc.identifier.issn
0173-5373  
dc.identifier.uri
http://hdl.handle.net/11336/191872  
dc.description.abstract
Few studies have investigated the level of individual variation in diet composition of poisonous frogs and toads. We compare the diet composition of three populations of a poisonous toad, Melanophryniscus rubriventris, and predicted that toads within a population might be constrained to forage on particular types of alkaloid-containing prey and consequently diets among populations might not diverge from each other. Most important prey categories in the diets of the three populations consisted of the same ground-dwelling arthropods. We found evidence for individuals consuming different arrays of prey types in all populations implying that this "generalist" species is actually comprised of individuals eating different sets of the available range of prey. Formicidae, Acari, and Coleoptera were all important alkaloid-containing prey items in the diets of all populations and individuals, although there were differences in their order of importance among populations and individuals use different sets of the entire range of alkaloid-containing preys. Future research should evaluate individual diet variation in other poisonous anurans taxa given that shifts in diet composition might have important implications for understanding the consequences of alternate foraging strategies in the evolution of defensive strategies among species.  
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
ANURANS  
dc.subject
CHEMICAL DEFENSE  
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FORAGING ECOLOGY  
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POPULATION  
dc.subject.classification
Ecología  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
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Bioquímica y Biología Molecular  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Population diet variation and individual specialization in the poison toad, Melanophryniscus rubriventris (Vellard, 1947)  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-03-23T12:31:51Z  
dc.journal.volume
32  
dc.journal.number
2  
dc.journal.pagination
261-265  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Leiden  
dc.description.fil
Fil: Quiroga, Maria Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias; Argentina  
dc.description.fil
Fil: Bonansea, Maria Ines. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina  
dc.description.fil
Fil: Vaira, Marcos. Universidad Nacional de Jujuy; Argentina. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina  
dc.journal.title
Amphibia-Reptilia  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://booksandjournals.brillonline.com/content/journals/10.1163/017353710x546530  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1163/017353710x546530