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The islands have been recognised as an Important Bird Area (IBA) by BirdLife International because they support populations of Japanese wood pigeons and Pleske's grasshopper warblers. The Tsushima Island pitviper ( Gloydius tsushimaensis) is a venomous snake endemic to the Tsushima Island. Honey bees are common, with many used to produce commercial honey. Forests, covering 90% of the island, consist of broad-leafed evergreens, conifers, and deciduous trees including cypress. Migrating birds that stop over on the island include hawks, harriers, eagles, and black-throated loons. Otters were discovered to be living on Tsushima in February 2017.
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The island's fauna include leopard cat, Japanese marten, Siberian weasel, and rodents. The island has a total area of 696.26 km 2 (268.83 sq mi).Ĭlimate data for Izuhara, Tsushima (1991−2020 normals, extremes 1886−present) The two main sections of the island are now joined by a combination bridge and causeway. Both sub-islands have a pair of mountains. The northern area is known as Kamino-shima (上島), and the southern island as Shimono-shima (下島). The Government of Japan administers Tsushima Island as a single entity despite the artificial waterways that have separated it into two islands. Tsushima Island has many mountains such as the Mt. Much of Tsushima (89%) is covered by natural vegetation and mountains. Tsushima Island and Iki Island are collectively within the borders of the Iki–Tsushima Quasi-National Park, designated as a nature preserve and protected from further development. The nearest Japanese port, Iki, situated on Iki Island within the Tsushima Basin, is also 50 km away. On a clear day, the hills and mountains of the Korean peninsula are visible from the higher elevations on the two northern mountains. Tsushima is the closest Japanese territory to the Korean Peninsula, lying approximately 50 km from Busan. The archipelago comprises over 100 smaller islets in addition to the main island. Ōfunakoshi-Seto and Manzeki-Seto, the two canals built in 16 respectively, connect the deep indentation of Asō Bay (浅茅湾) to the east side of the island. The Korea Strait splits at the Tsushima Island Archipelago into two channels the wider channel, closer to the mainland of Japan, is the Tsushima Strait. Tsushima Island is located west of the Kanmon Strait at a latitude between Honshu and Kyushu of the Japanese mainland. The city of Tsushima, Nagasaki lies on Tsushima Island and is divided into six boroughs. The main islands (that is, the "North" and "South" islands, and the thin island that connects them) are the largest coherent satellite island group of Nagasaki Prefecture and the eighth-largest in Japan. The island group measures about 70 km (43 mi) by 15 km (9 mi) and had a population of about 34,000 as of 2013. Administratively, Tsushima Island is in Nagasaki Prefecture.
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The name Tsushima generally refers to all the islands of the Tsushima archipelago collectively. Tsushima also incorporates over 100 smaller islands, many tiny. These canals were driven through isthmuses in the center of the island, forming "North Tsushima Island" ( Kamino-shima) and "South Tsushima Island" ( Shimono-shima). The main island of Tsushima, once a single island, was divided into two in 1671 by the Ōfunakoshiseto canal and into three in 1900 by the Manzekiseto canal. Tsushima Island ( Japanese: 対馬, Hepburn: Tsushima) is an island of the Japanese archipelago situated in-between the Tsushima Strait and Korea Strait, approximately halfway between Kyushu and the Korean Peninsula.
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