The Mascarene owls, also known as Mascarene scops owls or lizard owls, are a group of owls formerly classified in their own genus ''Mascarenotus'', but now thought to represent a

polyphyletic A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of converg ...

grouping within the genus ''

Otus Otus may refer to: * Otus (education), a K-12 educational technology company * HMS ''Otus'', two ships in the Royal Navy * ''Otus'' (bird), genus of owls * Otus (mythology), giant in Greek mythology, brother of Ephialtes, one of Aloadae * Otus o ...

''. They were restricted to the

Mascarene Islands The Mascarene Islands (, ) or Mascarenes or Mascarenhas Archipelago is a group of islands in the Indian Ocean east of Madagascar consisting of the islands belonging to the Republic of Mauritius as well as the French department of Réunion. Thei ...

in the

Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by th ...

. All three species, the

Réunion scops owl The Réunion scops owl (''Otus grucheti''), also known as the Réunion owl or Réunion lizard owl, was a small owl that occurred on the Mascarene island of Réunion, but became extinct before any living birds were described; it is only known from ...

, Mauritius scops owl, and

Rodrigues scops owl The Rodrigues scops owl (''Otus murivorus''), also known as Rodrigues owl, Rodrigues lizard owl, Leguat's owl, or (somewhat misleadingly) Rodrigues little owl, was a small owl. It lived on the Mascarene island of Rodrigues, but it is nowadays e ...

, are now extinct. Recent genetic studies indicate that the three species in the genus actually belong in the genus ''

'', which contains the typical scops owls. They are likely descended from the lineage of the

Oriental scops owl The oriental scops owl (''Otus sunia'') is a species of scops owl found in eastern and southern Asia. Description This is a small, variably plumaged, yellow-eyed owl with ear-tufts which are not always erect. It can be distinguished from the c ...

(''O. sunia''), and share common ancestry with the scops owls found in

Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...

and the

Comoros The Comoros,, ' officially the Union of the Comoros,; ar, الاتحاد القمري ' is an independent country made up of three islands in southeastern Africa, located at the northern end of the Mozambique Channel in the Indian Ocean. It ...

. The ''Mascarenotus'' grouping was found to be non-

monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic gro ...

, with the species having evolved the same morphology in

parallel evolution Parallel evolution is the similar development of a trait in distinct species that are not closely related, but share a similar original trait in response to similar evolutionary pressure.Zhang, J. and Kumar, S. 1997Detection of convergent and paral ...

, with the Rodrigues owl forming an outgroup to the clade containing the Mauritius owl, the

rainforest scops owl The Madagascar scops owl (''Otus rutilus''), also known as the Malagasy scops owl or Rainforest scops owl, is a species of owl in the family Strigidae. It is found throughout Madagascar, now that is has recently been lumped with the Torotoroka s ...

and the Seychelles scops owl.

References

Bird extinctions since 1500 Fauna of the Mascarene Islands Holocene extinctions {{Strigiformes-stub Otus (bird)