Mostrar el registro sencillo del ítem
dc.contributor.author
Juares, Mariana Alejandra
dc.contributor.author
Negrete, Javier
dc.contributor.author
Mennucci, Jorge Augusto
dc.contributor.author
Longarzo, Mria Lucrecia
dc.contributor.author
Coria, Néstor Rubén
dc.date.available
2023-04-12T16:21:28Z
dc.date.issued
2011-09
dc.identifier.citation
Juares, Mariana Alejandra; Negrete, Javier; Mennucci, Jorge Augusto; Longarzo, Mria Lucrecia; Coria, Néstor Rubén; "Ino" colour aberration in gentoo penguin (Pygoscelis papua) in Antarctica; The Ornithological Society of New Zealand; Notornis; 58; 3-4; 9-2011; 169-172
dc.identifier.issn
0029-4470
dc.identifier.uri
http://hdl.handle.net/11336/193509
dc.description.abstract
Two main types of pigments, carotenoids and melanin, primarily determine plumage colouration in birds. Carotenoids are obtained from food, while melanin formation involves metabolic processes and is genetically determined. Melanin pigments comprise pheomelanin (red/brown) and eumelanin (brown/black). Any change in the formation processes of these types of pigments may lead to abnormal colouration of an individual For example, a strong qualitative reduction of both types of melanin defines a colour mutation called "ino". On 15 Dec 2003, an ino chick of a gentoo penguin (Pygoscelis papua); was observed at Stranger Point, 25 de Mayo/King George I, South Shetland (62° 16´ S, 58° 37´ W). The following year, on 5 Dec 2004, an ino prebreeder gentoo penguin was seen at the same locality. During 2006/07 breeding season an ino adult of the same species successfully reared 2 normally coloured chicks. The ino penguin we observed showed pale brown colour in the normally dark areas of the plumage in this species. It had reddish eyes and grey claws. The beak remained orange but the normally dark culmen was grey. In summary, the ino penguin showed a clear reduction of the darkest areas of the body changing from black to pale brown in plumage and from black to grey in other tissues such as beak and claws. Nevertheless, the distinctive colour pattern of a gentoo penguin was still recognisable. To our knowledge this is the 1st report of an ino gentoo penguin, following van Grouwes (2006) classification.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
The Ornithological Society of New Zealand
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
COLOUR ABERRATIONS
dc.subject
INO
dc.subject
PYGOCELID PENGUINS
dc.subject
SOUTH SHETLAND ISLAND
dc.subject.classification
Zoología, Ornitología, Entomología, Etología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
"Ino" colour aberration in gentoo penguin (Pygoscelis papua) in Antarctica
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-04-11T11:53:24Z
dc.journal.volume
58
dc.journal.number
3-4
dc.journal.pagination
169-172
dc.journal.pais
Nueva Zelanda
dc.description.fil
Fil: Juares, Mariana Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.description.fil
Fil: Negrete, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.description.fil
Fil: Mennucci, Jorge Augusto. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.description.fil
Fil: Longarzo, Mria Lucrecia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.description.fil
Fil: Coria, Néstor Rubén. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.journal.title
Notornis
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.birdsnz.org.nz/publications/ino-colour-aberration-in-gentoo-penguin-pygoscelis-papua-in-antarctica/
Archivos asociados