Análisis morfométrico del surco nasal en aves

• Main Authors: Ibañez, Lucía Mariel, Tambussi, Claudia Patricia, Acosta Hospitaleche, Carolina Ileana Alicia
• Format: Article in Journal/Newspaper
• Language: Spanish
• Published: Neotropical Ornithological Society
• Subjects: surco de la glandula nasal; Análisis Elíptico de Fourier; aves marinas; https://purl.org/becyt/ford/1.5; https://purl.org/becyt/ford/1; Acosta; Alicia; Argentina; Fossa; Ibañez; Lucía; Antarc*; Antarctica; Brown Skua; Gentoo penguin; Pygoscelis papua
• Online Access: http://hdl.handle.net/11336/54854

The location of the salt gland in birds can be supra- or infraorbital, leaving generally a mark on the skull. The first type leaves a mark on the frontals, the fossa glandulae nasalis or nasal furrow, placed in the interorbital region. The second type leaves an impressio glandulae nasalis in the antero-ventral side of the frontals. The shape of the nasal furrow of birds habitant of different environments belonging to several guilds was analyzed through a Fourier Elliptic Analysis and others related metric features. An outlines analysis of the fossa gl. nasalis was made in 18 species (marine, continental and ubiquitous taxa), and another one was applied to two skuas species distinguishing males from females. According to the obtained results, the outline of the nasal furrow is not related with the environment, and its length vary intra- and inter-specifically. Morphology and size of the nasal furrow are independent from sex in the Gentoo Penguin (Pygoscelis papua) and the South Polar Skua (Catharact maccormicki), while in the Brown Skua (Catharacta antarctica) differences in size were detected between males and females. Fil: Ibañez, Lucía Mariel. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico Zoología Vertebrados; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Tambussi, Claudia Patricia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Acosta Hospitaleche, Carolina Ileana Alicia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina