「カンザシバト」ソロモン諸島シュワゼル島の絶滅種


ソロモン諸島のシュワゼル島に
生息していたが、第二次世界大戦
以降に島に持ち込まれたネコに
よって絶滅してしまった鳥は?
カワコウガス
エピオルバト
リョザクニナ
カンザシバト(答)
26%

カンザシバト(学名:Microgoura meeki) は、ハト目ハト科に属する鳥。
南太平洋・ソロモン諸島北部のシュワゼル島に生息していたが、すでに絶滅した。
形態と生態[編集]
体色は頭の飾り羽根・頭部・首・背中と羽の一部が藍色、残りの部分が褐色。ニューギニアのカンムリバトに近縁といわれる。もっぱら地上生活をしていたとされる。

絶滅の経緯[編集]
1904年に初めて採集されたが、後にも先にもそれ以外に採集された記録がない。現地人の話によると、第二次世界大戦の頃までは姿が見られたが、その後移入されたネコによって捕らえられてしまったという。
引用元:カンザシバト – Wikipedia https://ja.wikipedia.org/wiki/%E3%82%AB%E3%83%B3%E3%82%B6%E3%82%B7%E3%83%90%E3%83%88

The Choiseul pigeon (Microgoura meeki) is an extinct species of bird in the pigeon and dove family, Columbidae. It was endemic to the island of Choiseul in the Solomon Islands, although there are unsubstantiated reports that it may once have lived on several nearby islands. The last confirmed sighting was in 1904. Other common names were Solomons crested pigeon, Solomon Islands crowned-pigeon and Kuvojo.[1]

Extinction[edit]
The indigenous population believed that the pigeon became extinct due to predation by feral cats and, to a lesser extent, feral dogs.[1][20] As Choiseul has no indigenous carnivorous mammals, the ground-dwelling pigeon was particularly susceptible to the introduced cats.[4] If the pigeon existed on islands that feral cats had never reached, it is believed that the clearance of its forest habitat would have led to its local extinction.[11] As there have been no substantiated reports since 1904 despite multiple searches, the IUCN has declared it extinct.[19] As several ornithologists had visited Choiseul and the nearby islands prior to Meek without noting any sign of the bird’s existence, it is likely that the Choiseul pigeon was already close to extinction in 1904.[16]
引用元:Choiseul pigeon – Wikipedia https://en.wikipedia.org/wiki/Choiseul_pigeon