Holst's frog (Babina holsti) is a species of frog in the family Ranidae. It is endemic to the Ryukyu Islands of Japan. It occurs on mountains of the Okinawa and Tokashiki islands. It lives in primary or recovered secondary broad-leaved evergreen forests. It is threatened by habitat loss caused by road and dam construction.
Rana holsti Boulenger, 1892
Babina is a genus of frogs in the family Ranidae from southeastern and eastern Asia. Most of the species were originally placed in genus Rana, and Babina has been considered as a subgenus of Rana.List of Natural Monuments of Japan (Okinawa)
This list is of the Natural Monuments of Japan within the Prefecture of Okinawa.List of endangered amphibians
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 848 endangered amphibian species. 13% of all evaluated amphibian species are listed as endangered.
No subpopulations of amphibians have been evaluated by the IUCN.
For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of exintction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered amphibians are listed separately. There are 1393 amphibian species which are endangered or critically endangered.
Additionally 1567 amphibian species (24% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed."This is a complete list of endangered amphibian species evaluated by the IUCN.Ryukyu Islands
The Ryukyu Islands (琉球諸島, Ryūkyū-shotō), also known as the Nansei Islands (南西諸島, Nansei-shotō, lit. "Southwest Islands") or the Ryukyu Arc (琉球弧, Ryūkyū-ko), are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands (further divided into the Miyako and Yaeyama Islands), with Yonaguni the westernmost. The larger are mostly high islands and the smaller mostly coral. The largest is Okinawa Island.
The climate of the islands ranges from humid subtropical climate (Köppen climate classification Cfa) in the north to tropical rainforest climate (Köppen climate classification Af) in the south. Precipitation is very high and is affected by the rainy season and typhoons. Except the outlying Daitō Islands, the island chain has two major geologic boundaries, the Tokara Strait (between the Tokara and Amami Islands) and the Kerama Gap (between the Okinawa and Miyako Islands). The islands beyond the Tokara Strait are characterized by their coral reefs.
The Ōsumi and Tokara Islands, the northernmost of the islands, fall under the cultural sphere of the Kyushu region of Japan; the people are ethnically Japanese and speak a variation of the Kagoshima dialect of Japanese. The Amami, Okinawa, Miyako, and Yaeyama Islands have a native population collectively called the Ryukyuan people, named for the former Ryukyu Kingdom that ruled them. The varied Ryukyuan languages are traditionally spoken on these islands, and the major islands have their own distinct languages. In modern times, the Japanese language is the primary language of the islands, with the Okinawan Japanese dialect prevalently spoken. The outlying Daitō Islands were uninhabited until the Meiji period, when their development was started mainly by people from the Izu Islands south of Tokyo, with the people there speaking the Hachijō language.
Administratively, the islands are divided into Kagoshima Prefecture (specifically the islands administered by Kagoshima District, Kumage Subprefecture/District, and Ōshima Subprefecture/District) in the north and Okinawa Prefecture in the south, with the divide between the Amami and Okinawa Islands, with the Daitō Islands part of Okinawa Prefecture. The northern (Kagoshima) islands are collectively called the Satsunan Islands, while the southern part of the chain (Okinawa Prefecture) are called the Ryukyu Islands in Chinese.Yanbaru
Yanbaru (山原) is the Okinawan and Kunigami name given to the forested northern part of Okinawa Island in Japan. Spanning the northern villages of Higashi, Kunigami, and Ōgimi, Yanbaru contains some of the last large surviving tracts of subtropical rainforest in Asia, with many endemic species of flora and fauna. Many southerners fled to the area for refuge during the Battle of Okinawa. In 2016, Yanbaru National Park was established and the area was included in a submission for inscription on the UNESCO World Heritage List.Yanbaru currently contains the 7,500 ha US Jungle Warfare Training Centre at Camp Gonsalves. As of 2010 there were twenty-two helipads in the training area with a further seven planned within two of the best preserved areas. Issues relating to the location of helipads delayed the designation as a National Park. Threatened by clearcutting and the removal of undergrowth, various endemic species are facing an imminent extinction crisis. The US Marine Corps has noted that 'to continue to perform realistic military training activities, these habitats must be maintained.'