Hahajima, Haha Jima, or Haha-jima is the second-largest island within the Bonin or Ogasawara Islands SSE of the Japanese Home Islands. The steeply-sloped island, which is about 21 km2 (8 sq mi) in area, has a population of 440. It is part of Ogasawara Village in Ogasawara Subprefecture, which is approximately 1,000 km (620 mi) south of Tokyo, Japan.
The Ogasawara subtropical moist forests is a terrestrial ecoregion which encompasses the Ogasawara Archipelago of Japan. The Ogasawara Archipelago lies in the Pacific Ocean south of Honshu, Japan's largest island, and north of the Marianas Islands. The ecoregion includes the Bonin Islands and Volcano Islands chains. The islands are volcanic in origin, and have never been linked to a continent. They are home to distinct plants and animals including many endemic species.
The Bonin wood pigeon was a pigeon endemic to Nakodo-jima and Chichi-jima in the Ogasawara Islands, south of Japan. It is known from four recorded specimens, the first from 1827 and the last from 1889. They averaged a length of 45 cm. This pigeon died out late in the 19th century as a result of deforestation, hunting, and predation by introduced rats and cats.
Ogasawara National Park is a national park in the Ogasawara Islands, located approximately one thousand kilometres to the south of Tokyo, Japan. The park was established in 1972 within the municipality of Ogasawara, itself part of Tokyo. In 2011, the Ogasawara Islands were inscribed upon the UNESCO World Heritage List.
The Bonin grosbeak or Bonin Islands grosbeak is an extinct finch. It is one of the diverse bird taxa that are vernacularly called "grosbeaks", but it is not closely related to the grosbeaks sensu stricto. Many authorities place the species in the genus Carpodacus, but some place it in its own genus, Chaunoproctus. A 2013 genetic analysis found it to be a relatively basal member of the group, more derived than the common rosefinch, but with no close relatives, with an estimated divergence time from other members of the group around 12.5 million years ago.
The Bonin thrush, also known as Kittlitz's thrush or the Bonin Islands thrush, is an extinct species of Asian thrush. It is sometimes separated as the only species of the genus Cichlopasser. The only place where this bird was found was Chichi-jima in the Ogasawara Islands; it might conceivably have inhabited Anijima and Otōtojima, but this has not been borne out by observations or specimens. The species was only once observed by a naturalist, its discoverer Heinrich von Kittlitz. He encountered the thrush in the coastal woods where it usually kept to the ground; it may have been ground-nesting. The only specimens ever taken are in the Naturalis in Leiden (1), the Naturhistorisches Museum in Vienna (1), the Senckenbergmuseum in Frankfurt (1) and in the Zoological Museum, St. Petersburg (2).
Sturdee's pipistrelle, also known as the Bonin pipistrelle bat, is a bat that was thought to have lived in Japan before officially becoming extinct in 2000. In 2020, the IUCN changed its official status to "extinct".
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss.
The Ryukyu tube-nosed bat(Murina ryukyuana) is a species of vesper bat found only in Japan.
Hirasea acutissima is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Charopidae. The width of the shell is 2 mm. The height of the shell is 4 mm. H. acutissima is endemic to Haha-jima in the Ogasawara Islands, Japan, and is listed as endangered in the IUCN Red List of Threatened Species. In 2007, the species was rediscovered after being considered to be extinct.
The white-browed crake is a species of bird in the family Rallidae. It is found in Australia, Brunei, Cambodia, Fiji, Hong Kong, Indonesia, Japan, India, Malaysia, Micronesia, New Caledonia, Palau, Papua New Guinea, the Philippines, Samoa, Singapore, Solomon Islands, Thailand, and Vanuatu.
Pfeffer's reed snake is a species of dwarf snake in the family Colubridae. The species is endemic to Japan.
The Senkaku mole, also known as the Ryukyu mole, is a species of mammal in the family Talpidae. It was formerly classified as being the only species in the genus Nesoscaptor. It is endemic to the Uotsuri-jima of the disputed territory of Senkaku Islands, also known as the Diaoyutai Islands. It is most similar to the Insular mole of Taiwan and Mainland China.
The Ryukyu flying fox or Ryukyu fruit bat is a species of megabat in the family Pteropodidae. It is found in Japan, Taiwan, and the Batanes and Babuyan Islands of the Philippines. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical swamps. It is threatened by habitat loss and by hunting for food and the IUCN classify it as "Vulnerable".
The Bonin flying fox, Bonin fruit bat, or in Japanese Ogasawara giant bat is a species of flying fox in the family Pteropodidae. It is endemic to four islands in Ogasawara Islands, Japan. Its natural habitat is subtropical forests. It is threatened by habitat loss.
Boninena hiraseana is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Enidae.
Mandarina luhuana is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Bradybaenidae. This species is endemic to Chichi-jima and Minami-jima of the Bonin Islands in Japan.
Ogasawarana yoshiwarana is a species of land snail with an operculum, a terrestrial gastropod mollusk in the family Helicinidae, the helicinids.
