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Nisaetus
Nisaetus, the crested hawk-eagles, is a genus of raptor in the subfamily Aquilinae, found mainly in tropical Asia. They were earlier placed within the genus Spizaetus but molecular studies show that the Old World representatives of that genus are closer to the genus Ictinaetus than to the New World Spizaetus (in the stricter sense). They are slender-bodied, medium-sized hawk-eagles with rounded wings, long feathered legs, barred wings, crests and usually adapted to forest habitats.
Species
GENUS
- KingdomAnimalia
- PhylumChordata
- ClassAves
- OrderAccipitriformes
- FamilyAccipitridae
Nisaetus es un género de aves accipitriforme de la familia Accipitridae. Son águilas nativas de las zonas tropicales de Asia. Las especies que forman parte del género fueron anteriormente colocados en el género Spizaetus, pero estudios moleculares muestran que los representantes del Viejo Mundo estaban más cerca del género Ictinaetus que de Spizaetus del Nuevo Mundo (en sentido estricto). Son aves de presa delgadas, de tamaño mediano, con alas redondeadas, piernas largas con plumas, crestas, y generalmente bien adaptadas a hábitats forestales.[1] Especies Referencias ↑ E. Haring1, K. Kvaløy, J.-O. Gjershaug, N. Røv and A. Gamauf (2007). «Convergent evolution and paraphyly of the hawk-eagles of the genus Spizaetus (Aves, Accipitridae) – phylogenetic analyses based on mitochondrial markers». J Zool Syst Evol Res 45 (4): 353-365. doi:10.1111/j.1439-0469.2007.00410.x. ↑ BirdLife International (2009). «Nisaetus alboniger». Lista Roja de especies amenazadas de la UICN 2010.4 (en inglés). ISSN 2307-8235. Consultado el 18 de abril de 2011. ↑ BirdLife International (2009). «Nisaetus bartelsi». Lista Roja de especies amenazadas de la UICN 2010.4 (en inglés). ISSN 2307-8235. Consultado el 18
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Article
2 sectionsContents
- Taxonomy and species
- References
Nisaetus, the crested hawk-eagles, is a genus of raptor in the subfamily Aquilinae, found mainly in tropical Asia. They were earlier placed within the genus Spizaetus but molecular studies show that the Old World representatives of that genus are closer to the genus Ictinaetus than to the New World Spizaetus (in the stricter sense). They are slender-bodied, medium-sized hawk-eagles with rounded wings, long feathered legs, barred wings, crests and usually adapted to forest habitats.
== Taxonomy and species == These Old World species were formerly placed in the genus Spizaetus. They were moved to the resurrected genus Nisaetus based on the results of molecular genetic studies published in 2005 and 2007. The genus Nisaetus had been introduced in 1836 by the English naturalist Brian Houghton Hodgson with the mountain hawk-eagle as the type species. The genus name Nisaetus combines the Medieval Latin nisus for a sparrowhawk with the Ancient Greek aetos meaning "eagle". The genus contains ten species.