![]() The Helm Dictionary of Scientific Bird Names. "Aquila" danana (Snake Creek Late Miocene/Early Pliocene of Loup Fork, USA), occasionally placed in Geranoaetus or Buteo, was a bird of prey of unclear relationships. "Aquila" ferox, "A." lydekkeri – protostrigid owls, now in Minerva."Aquila" corroyi, "A." depredator, "A." hypogaea, and "A." prisca – now in Aquilavus."Aquila" borrasi, "A." sodalis – now in Buteogallus, B."Aquila" gervaisii – now in Palaeohierax.Its initial name, "Aquila" minuta Milne-Edwards, 1871, is preoccupied by a junior synonym of the booted eagle, A. Whether " Hieraaetus" edwardsi (Middle -? Late Miocene of SW Europe) belongs into Aquila or the hawk-eagles (if the latter are indeed distinct) is unclear. Aquila nipaloides (Pleistocene of Sardinia and Corsica).? Aquila fossilis (Middle/Late Pleistocene of Monte Reale, Sardinia).(Middle Pleistocene of Castiglione, Corsica) ![]() Aquila kurochkini (Late Pliocene of Varshets, Bulgaria).(Late Miocene – Late Pliocene of S Europe) ? Aquila pennatoides (Middle/Late Miocene of Grive-Saint-Alban, France).? Aquila delphinensis (Middle/Late Miocene of Grive-Saint-Alban, France).Many have been moved to other genera, but several appear to be correctly assigned to this genus: Numerous fossil taxa of eagles have been described. The genus Aquila contains 11 species: Common name fasciata/spilogaster) share two deletions in the (nuclear) LDH gene, as well as similarities in mitochondrial cyt-B gene sequence, though one of these deletions is reverted in A. Members of Aquila (excluding those moved to Clanga and Hieraaetus, but including A. (p.) hastata) are thought to be genetically closer to Ictinaetus and Lophoaetus than to other Aquila species, and may be placed into a separate genus, Clanga. The spotted eagles greater spotted eagle, lesser spotted eagle, and Indian spotted eagle (previously Aquila clanga, A. The current approach is to keep Hieraaetus as a separate genus, with Bonelli's eagle and the African hawk-eagle moved into Aquila and Wahlberg's eagle moved into Hieraaetus. Also, Clements' Checklist merged all Hieraetus species into Aquila from 2001 to 2009. Between 20, the British Ornithologists' Union included both Bonelli's and the booted eagle in Aquila. Research in molecular genetics found Aquila and Hieraaetus to be polyphyletic. Hieraaetus species have both dark and light (or "pied") morphs, with the latter having light, unbarred under-parts. In contrast, within the Aquila–Hieraaetus–Lophaetus clade, adults are generally dark, with juveniles more closely resembling the adults. The plumage of the more basal members of the booted-eagle group, such as Spizaetus and Nisaetus, generally has barred underparts in adults, and is distinctly different in juveniles which have plain, pale underparts. This group occurs as a clade within the larger group of "booted" eagles (tribe Aquilini or subfamily Aquilinae). Aquila belongs to a close-knit group of "typical" eagles including genera Hieraaetus, Lophaetus, Ictinaetus and Clanga. The genus Aquila was introduced by the French zoologist Mathurin Jacques Brisson in 1760 with the golden eagle ( Aquila chrysaetos) as the type species.
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