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Meller's duck (Anas melleri) is a species of the dabbling duck genus Anas. It is endemic to eastern Madagascar . Although a population was established on Mauritius in the mid-18th century, this is on the verge of extinction due to habitat loss and competition by feral domestic ducks . [ 2 ]
A. s. sparsa Eyton 1838 (South African black duck) Anas melleri Sclater 1865 (Meller's duck) EN C2a(ii) Anas undulata Dubois 1839 (yellow-billed duck) LC. A. u. ruppelli Blyth 1855 (northern yellow-billed duck) A. u. undulata Dubois 1839 (southern yellow-billed duck) Anas laysanensis Rothschild 1892 (Laysan duck) CR B1ac(iv)
Earlier, it was proposed that Meller's duck, also from Madagascar, is the closest living relative of A. theodori, but as more remains of the latter were unearthed this appears far less likely. Apart from a few, brief descriptions, not much is known about the bird in life, but its habits probably did not differ significantly from those of its ...
The retention of ancestral genetic variation can be caused by incomplete lineage sorting (ILS) and introgression after secondary contact. These two factors can cause genetic variation to be shared between closely related species which is possibly why an American black duck or a Mottled duck (Anas fulvigula) may have notable white on its speculum or a Mexican duck may have flecks of green.
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Laysan duck: Anas laysanensis: 500-680 [21] CR [21] [21] No total population estimate is given due to the birds rarity. [21] Bernier's teal: Anas bernieri: 630-1,900 [22] EN [22] [23] Total population is not given. This estimate for mature individuals is based on multiple counts over the years. [22] Blue duck: Hymenolaimus malacorhynchos: 1,200 ...
The following three families are endemic to Madagascar: . Ground-rollers, a family within the Coraciiformes, containing five species in three genera.; Asities, a passerine family within the Old World suboscines, containing four species in two genera
The sickle-billed vanga belongs to the family Vangidae, one of Madagascar's families.. Madagascar is an island nation located off the southeastern coast of Africa.Because of its long separation from neighboring continents—through tectonic movement, it split from Africa about 160 million years ago, and from India around 90 million years ago—it contains many species endemic to the island. [1]