Nansei Islands subtropical evergreen forests | |
---|---|
Ecology | |
Realm | Indomalayan |
Biome | tropical and subtropical moist broadleaf forests |
Geography | |
Area | 3,609 km2 (1,393 sq mi) |
Country | Japan |
prefectures | |
Conservation | |
Conservation status | Critical/endangered [1] |
Protected | 813 km² (23%) [2] |
The Nansei Islands subtropical evergreen forests is a terrestrial ecoregion of the Ryukyu Islands, also known as the Nansei Islands, in Japan. The Nansei Islands are an island arc that stretches southwest from Kyushu towards Taiwan. The larger islands are mostly volcanic islands and the smaller ones mostly coral. The largest is Okinawa Island. The highest point is Mount Miyanoura on Yakushima Island at 1,936 metres (6,352 ft).
The ecoregion is the northernmost in the Indomalayan realm, and shares many plants with subtropical and tropical Asia. [1]
The Nansei Islands have a humid climate, which ranges from subtropical in the north to tropical in the south. The warm Kuroshio Current runs offshore, and sustains coral reefs and the northernmost mangroves in the western Pacific. [1]
The natural vegetation of the islands is subtropical broadleaf evergreen forest. The dominant trees are Castanopsis sieboldii, Quercus miyagii, Persea thunbergii , and Schima wallichii ssp. liukiuensis. In the mountain forests of Yakushima Island, conifers including Cryptomeria japonica, Chamaecyparis obtusa, Tsuga sieboldii , and Abies firma , are mixed with the broadleaf evergreen trees above 1200 meters elevation. [3]
Coastal and swamp plant communities include plants characteristic of the tropical Pacific, including Ipomoea pes-caprae, Spinifex littoreus, Thespesia populnea, Terminalia catappa , and Macaranga tanarius . Mangrove species include Bruguiera gymnorhiza, Heritiera littoralis, Rhizophora stylosa, Avicennia marina, Sonneratia alba , and Nypa fruticans . [3]
Satakentia liukiuensis , the only species in the genus Satakentia , is a palm tree that is endemic to Ishigaki Island and Iriomote Island in the Yaeyama Islands. [4]
The ecoregion corresponds to the Nansei Shoto Endemic Bird Area, and is home to several endemic bird species, including the Ryukyu wood pigeon (Columba jouyi), Ryukyu green pigeon (Treron permagnus), and Ryukyu robin (Larvivora komadori). The Okinawa rail (Gallirallus okinawae) and Okinawa woodpecker (Dendrocopos noguchii) are limited to Okinawa, and the Amami woodcock (Scolopax mira), Amami jay (Garrulus lidthi), and Amami thrush (Zoothera major) are limited to the Amami Islands. The Ryukyu minivet (Pericrocotus tegimae) is formerly endemic, but in recent decades has spread to Kyushu, Shikoku, and western Honshu. [5]
Several threatened species live in the ecoregion and in neighboring ones. The Japanese woodpigeon (Columba janthina) lives in the Nansei Islands, Ogasawara Islands, and islands off Korea's southern coast. The Ryukyu scops owl (Otus elegans) lives in the Nansei Islands as well as Taiwan and Batanes. [5]
Protected areas include Yakushima National Park (325.53 km²) on Yakushima Island, and Yanbaru National Park (136.22 km²) on Okinawa Island.[ citation needed ]
The Global 200 is the list of ecoregions identified by the World Wide Fund for Nature (WWF), the global conservation organization, as priorities for conservation. According to WWF, an ecoregion is defined as a "relatively large unit of land or water containing a characteristic set of natural communities that share a large majority of their species dynamics, and environmental conditions". For example, based on their levels of endemism, Madagascar gets multiple listings, ancient Lake Baikal gets one, and the North American Great Lakes get none.
Yakushima (屋久島) is one of the Ōsumi Islands in Kagoshima Prefecture, Japan. The island, 504.88 km2 (194.94 sq mi) in area, has a population of 13,178. Access to the island is by hydrofoil ferry, slow car ferry, or by air to Yakushima Airport . Administratively, the whole island is the town of Yakushima. The town also serves neighbouring Kuchinoerabujima. The majority of the island is within the borders of the Kirishima-Yaku National Park.
The Vanuatu rain forests are tropical and subtropical moist broadleaf forests ecoregion which includes the islands of Vanuatu, as well as the Santa Cruz Islands group of the neighboring Solomon Islands. It is part of the Australasian realm, which includes neighboring New Caledonia and the Solomon Islands, as well as Australia, New Guinea, and New Zealand.
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 Yaeyama Islands are an archipelago in the southwest of Okinawa Prefecture, Japan, and cover 591.46 square kilometres (228.36 sq mi). The islands are located southwest of the Miyako Islands, part of the Ryukyu Islands archipelago. The Yaeyama Islands are the remotest part of Japan from the main islands and contain Japan's most southern (Hateruma) and most western (Yonaguni) inhabited islands. The city of Ishigaki serves as the political, cultural, and economic center of the Yaeyama Islands.
The Nicobar Islands rain forests is a tropical moist broadleaf forest ecoregion in the Nicobar Islands. The Nicobar Islands are in the Indian Ocean, lying north of Sumatra and south of the Andaman Islands. The islands are politically part of India, although physically closer to Southeast Asia. Millions of years of isolation from the mainland has given rise to a distinct flora and fauna, including many endemic species.
The Ōsumi Islands is an archipelago in the Nansei Islands, and are the northernmost group of the Satsunan Islands, which is in turn part of the Ryukyu Archipelago. The chain extends from the southern tip of Kyushu to Yakushima. Administratively, the group belongs within Kagoshima Prefecture, Japan.
The Chin Hills-Arakan Yoma montane forests is a tropical and subtropical moist broadleaf forest ecoregion in western Myanmar (Burma). Surrounded at lower elevations by moist tropical forests, this ecoregion is home a diverse range of subtropical and temperate species, including many species characteristic of the Himalayas, as well as many endemic species.
The Ryukyu Islands, also known as the Nansei Islands or the Ryukyu Arc, are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands, with Yonaguni the westernmost. The larger are mostly volcanic islands and the smaller mostly coral. The largest is Okinawa Island.
The Northern Indochina subtropical moist forests are a subtropical moist broadleaf forest ecoregion of northern Indochina, covering portions of Vietnam, Laos, Thailand, Myanmar, and China's Yunnan Province.
The wildlife of Japan includes its flora, fauna, and natural habitats. The islands of Japan stretch a long distance from north to south and cover a wide range of climatic zones. This results in a high diversity of wildlife despite Japan's isolation from the mainland of Asia. In the north of the country, north of Blakiston's Line, there are many subarctic species which have colonized Japan from the north. In the south there are south-east Asian species, typical of tropical regions. Between these areas lies the temperate zone which shares many species with China and Korea. Japan also has many endemic species that are found nowhere else in the world, making it home to many endangered/rare species.
The Japanese wood pigeon is a species of columbid bird. It is found in East Asia along shorelines of the Pacific's Korea Strait, Philippine Sea and East China Sea. They are believed to be the largest representative of their genus, Columba, at 550 grams (1.2 lb) and 43 cm (17 in). Its natural habitats are temperate forests and subtropical or tropical moist lowland forests. The species is in decline owing to habitat loss, habitat degradation, deforestation and hunting. This wood pigeon is endemic to the laurel forest habitat.
The Taiheiyo evergreen forests is a temperate broadleaf forest ecoregion of Japan.
Amami Guntō National Park is a national park in Kagoshima Prefecture, Japan. Established in 2017, the park comprises a land area of 42,181 ha and a sea area of 33,082 ha. The national park includes areas of these islands: Tokunoshima, Kikai, Amami, Yoron, Okinoerabujima, Uke Island, Kakeromajima and Yoroshima.
The Tongan tropical moist forests is a tropical and subtropical moist broadleaf forests ecoregion that includes the Tonga archipelago and Niue.
The Palau tropical moist forests is a tropical and subtropical moist broadleaf forests ecoregion in Micronesia. It encompasses the nation of Palau.
Amami-Ōshima Island, Tokunoshima Island, northern part of Okinawa Island, and Iriomote Island (奄美大島、徳之島、沖縄島北部及び西表島) is a serial UNESCO World Heritage Site consisting of five component parts on four Japanese islands in the Ryukyu Chain of the Nansei Islands. The site was selected in terms of biodiversity for having a diverse ecosystem of plant and animal species that are unique to the region.
The Bonin Islands are an archipelago of over 30 subtropical and tropical islands, some 1,000 kilometres directly south of Tokyo, Japan and 1,000 miles northwest of Guam.
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: CS1 maint: date and year (link) Supplemental material 2 table S1b.