著者

姉崎 悟

出版者

公益財団法人 山階鳥類研究所

雑誌

山階鳥類学雑誌 (ISSN:13485032)

巻号頁・発行日

vol.43, no.2, pp.105-151, 2012-03-30 (Released:2014-03-30)

参考文献数

70

被引用文献数

5 2

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Information collected on birds found in Kita-daito and Minami-daito Islands before World War II revealed records of 85 species, and ambiguous records of 14 species. In the two islands, local populations of the Buzzard Buteo buteo and the Wren Troglodytes troglodytes are considered to be endemic subspecies. However, the absence of information about breeding of these two species before WWII leaves open the possibility that these populations may be other subspecies. The environment of the Daito Islands has changed greatly since reclamation started in 1900, and since that time all seabirds and four species of land birds have become extinct there, and four species have become newly established. The number of the current resident species is 13, which is the same number as that just before the reclamation, which suggests that the resident avifauna may have restabilized.

著者

姉崎 悟

出版者

公益財団法人 山階鳥類研究所

雑誌

山階鳥類学雑誌 (ISSN:13485032)

巻号頁・発行日

vol.46, no.2, pp.127-140, 2015-03-20 (Released:2017-03-20)

参考文献数

26

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Between 14th–16th July 2013, 11 species of birds were observed on Kita-daito Island, Daito Islands. Of these, six species included juveniles. In this survey, the Mallard Anas platyrhynchos which had bred there in the past, was not observed, and it may no longer be present on this island.