Mostrar el registro sencillo del ítem
dc.contributor.author
Blaco, Guillermo
dc.contributor.author
Bautista, Luis M.
dc.contributor.author
Hornero Méndez, Dámaso
dc.contributor.author
Lambertucci, Sergio Agustin
dc.contributor.author
Wiemeyer, Guillermo
dc.contributor.author
Sanchez Zapata, José A.
dc.contributor.author
Hiraldo, Fernando
dc.contributor.author
Donázar, José A.
dc.date.available
2017-01-23T20:37:01Z
dc.date.issued
2014-06
dc.identifier.citation
Blaco, Guillermo; Bautista, Luis M.; Hornero Méndez, Dámaso; Lambertucci, Sergio Agustin; Wiemeyer, Guillermo; et al.; Allometric deviations of plasma carotenoids in raptors; Wiley; Ibis; 156; 3; 6-2014; 668-675
dc.identifier.issn
0019-1019
dc.identifier.uri
http://hdl.handle.net/11336/11726
dc.description.abstract
Because large species ingest proportionally less food than small ones, it may be predicted that they should incorporate relatively fewer carotenoids to a proportionally equal volume of blood. However, some species may increase their levels of circulating carotenoids by ingesting unusual food. We tested whether the plasma concentration of carotenoids scales to the three-quarter power of mass in nine predatory and scavenger raptor species. No significant allometric relationships were found due to the unusually high concentrations of carotenoids in the Egyptian Vulture Neophron percnopterus and the Andean condor Vultur gryphus. To assess whether these two species deviate from the allometric rule through the exploitation of unusual sources of carotenoids, or due to a physiological adaptation to improve the uptake of carotenoids, we determined allometric patterns in individuals of these two species kept in captivity with an exclusive diet of flesh. Our results provided support for the allometric rule because the slope of the allometric equation did not differ from a three-quarter exponent when carotenoid levels of the two outliers were replaced by those of captive birds. This adjustment to the allometric rule suggests a lack of any physiological adaptation to improve the uptake of the low concentrations of carotenoids contained in flesh. Differences between species in carotenoid incorporation into the bloodstream may be ultimately due to contrasting evolutionary history, physiology and associated colour-signalling strategies, but proximately due to the acquisition of these micronutrients from both usual and unusual dietary sources.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Body Mass
dc.subject
Carnivores
dc.subject
Diet
dc.subject
Micronutrients
dc.subject.classification
Ecología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Allometric deviations of plasma carotenoids in raptors
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-12T14:20:52Z
dc.journal.volume
156
dc.journal.number
3
dc.journal.pagination
668-675
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Blaco, Guillermo. Consejo Superior de Investigaciones Cientificas. Museo Nacional de Ciencias Naturales; España
dc.description.fil
Fil: Bautista, Luis M.. Consejo Superior de Investigaciones Cientificas. Museo Nacional de Ciencias Naturales; España
dc.description.fil
Fil: Hornero Méndez, Dámaso. Consejo Superior de Investigaciones Cientificas. Instituto de la Grasa; España
dc.description.fil
Fil: Lambertucci, Sergio Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; Argentina
dc.description.fil
Fil: Wiemeyer, Guillermo. Jard ın Zoologico de la Ciudad de Buenos Aires; Argentina. The Peregrine Fundation; Estados Unidos
dc.description.fil
Fil: Sanchez Zapata, José A.. Universidad de Miguel Hernandez; España
dc.description.fil
Fil: Hiraldo, Fernando. Consejo Superior de Investigaciones Cientificas. Estacion Biológica de Doñana; España
dc.description.fil
Fil: Donázar, José A.. Consejo Superior de Investigaciones Cientificas. Estacion Biológica de Doñana; España
dc.journal.title
Ibis
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ibi.12155/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/ibi.12155
Archivos asociados