|Most recent IBA monitoring assessment|
|Year of assessment||Threat score (pressure)||Condition score (state)||Action score (response)|
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The islands in Iwohretto are still active. They are a chain of islands on the Pacific Ocean about 1,200 km south of Tokyo metropolitan area, consisting of three islands- Kitaiwohto, Iwohto and Minamiiwohto. Iwohto is a flat island and 23.16 km2, and the highest point is at about 169 m. While Minamiiwohto is 3.54 km2, of which the highest peak is at 918 m, and Kitaiwohto is 5.57 km2, of which the highest point is 792 m. The island has precipitous cliffs. Kitaiwohto was inhabited before the World War, but not after the War. Leucaena leucocephala forests mainly dominate. There are natural ponds and marshes on the north part of Iwohto island, which are seldom among Ogasawarashoto islands.
BirdLife International (2020) Important Bird Areas factsheet: Kazan-retto islands. Downloaded from http://www.birdlife.org on 20/01/2020.