The Taiheiyo montane deciduous forests

ecoregion An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas o ...

(WWF ID: PA0441) stretches for about along the eastern (Pacific side) slopes of the island of

Honshu , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island ...

, with some small patches on the southern islands of

Shikoku is the smallest of the four main islands of Japan. It is long and between wide. It has a population of 3.8 million (, 3.1%). It is south of Honshu and northeast of Kyushu. Shikoku's ancient names include ''Iyo-no-futana-shima'' (), ...

and

Kyushu is the third-largest island of Japan's five main islands and the most southerly of the four largest islands ( i.e. excluding Okinawa). In the past, it has been known as , and . The historical regional name referred to Kyushu and its surroun ...

. Lower elevations to the east along the coast are in the Taiheiyo evergreen forests ecoregion; higher elevations to the west are in the Nihonkai montane deciduous forests ecoregion. Characteristic forests are of Japanese beech, stone pine, and spruce.

Location and description

Elevations run from sea level to , with a mean elevation of . While most of the ecoregion is represented by a thin strip above the coastal region, there is a large inland section centered on the

Akaishi Mountains The are a mountain range in central Honshū, Japan, bordering Nagano, Yamanashi and Shizuoka prefectures. It is also called the , as it joins with the Hida Mountains ("Northern Alps") and the Kiso Mountains ("Central Alps") to form the Japa ...

in central Honshu, and another centered on

Fukushima Prefecture Fukushima Prefecture (; ja, 福島県, Fukushima-ken, ) is a prefecture of Japan located in the Tōhoku region of Honshu. Fukushima Prefecture has a population of 1,810,286 () and has a geographic area of . Fukushima Prefecture borders Miya ...

to the north.

Climate

The climate of the ecoregion is '' Humid continental climate, warm summer'' (

Köppen climate classification The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, nota ...

(Dfb)). This climate is characterized by large seasonal temperature differentials and a warm summer (at least four months averaging over , but no month averaging over .

Flora and fauna

Japanese beech ''(

Fagus crenata ''Fagus crenata'', known as the Siebold's beech, Japanese beech, or buna, is a deciduous tree of the beech genus, ''Fagus'', of the family Fagaceae. Distribution and habitat It is endemic to Japan, where it is widespread and often one of the ...

)'', is a characteristic tree in the northeast of the region, up to . Other trees include the Japanese stone pine ''( Pinus pumila)'' and Hemlock spruce ''(

Picea A spruce is a tree of the genus ''Picea'' (), a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. ''Picea'' is the sole genus in the subfam ...

)''. Typical understory is the Saga plant. Large mammals in the ecoregion includes the Japanese serow, Sika deer, and

Wild boar The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The species is ...

Protected areas

Protected areas in the ecoregion include: *

Minami Alps National Park is a national park in the Akaishi Mountains, Chūbu region, Honshū, Japan. The Minami Alps National Park was established on June 1, 1964. It extends along the border of Shizuoka, Yamanashi and Nagano Prefectures for a length of , and a maxi ...

, a rugged area in the Akaishi Mountains of central Honshu, with many peaks over 3,000 meters. * (Portions of) Fuji-Hakone-Izu National Park, in the mainland portions below

Mount Fuji , or Fugaku, located on the island of Honshū, is the highest mountain in Japan, with a summit elevation of . It is the second-highest volcano located on an island in Asia (after Mount Kerinci on the island of Sumatra), and seventh-highes ...

, which itself is in the

Honshu alpine conifer forests , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separ ...

ecoregion where it rises above the surrounding Taiheiyo ecoregion.

References

{{Paleartic temperate broadleaf and mixed forests Palearctic ecoregions Ecoregions of Japan Temperate broadleaf and mixed forests Montane forests