title: Coprophagy: an unusual source of essential carotenoids.
abstract: The rare Egyptian vulture (Neophron percnopterus) stands out among the Old World vultures (Family Accipitridae) because of its brightly ornamented head, which is coloured yellow by carotenoid pigments, and its practice of feeding on faeces. Here we show that Egyptian vultures obtain these pigments from the excrement of ungulates. To our knowledge, this is the first demonstration that faeces can be used as a source of carotenoids by a vertebrate.
authors.affiliation: Department of Applied Biology, Estación Biológica de Doñana, CSIC, Pabellón del Perú, Avda María Luisa, s/n 41013 Seville, Spain. negro@ebd.csic.es
authors.forename: J J
authors.initials: JJ
authors.lastname: Negro
authors.forename: J M
authors.initials: JM
authors.lastname: Grande
authors.forename: J L
authors.initials: JL
authors.lastname: Tella
authors.forename: J
authors.initials: J
authors.lastname: Garrido
authors.forename: D
authors.initials: D
authors.lastname: Hornero
authors.forename: J A
authors.initials: JA
authors.lastname: Donázar
authors.forename: J A
authors.initials: JA
authors.lastname: Sanchez-Zapata
authors.forename: J R
authors.initials: JR
authors.lastname: BenItez
authors.forename: M
authors.initials: M
authors.lastname: Barcell
mesh_terms: D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002338:Carotenoids / Q000008:administration & dosage*; D002417:Cattle; D003116:Color; D004032:Diet; D005243:Feces / Q000737:chemistry*; D010858:Pigmentation; D020304:Raptors / Q000502:physiology*
chemical_list: D002338:Carotenoids