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Japan has significant diversity in flora. Of approximately 5,600 total vascular plant species, almost 40% are endemic. [1] This richness is due to the significant variation in latitude and altitude across the country, a diversity of climatic conditions due to monsoons, and multiple geohistorical incidences of connections with the mainland.
Japan lies at the convergence of three terrestrial realms, the Palearctic, Indomalaya, and Oceania, and its flora and fauna combine elements from all three.The ecoregions that cover the main islands of Japan, Honshū, Hokkaidō, Kyūshū, and Shikoku, along with the nearby islands, are considered part of the Palearctic realm.
Japan is within the larger region of East Asia. For the purposes of this category, "Japan" is defined in accordance with the World Geographical Scheme for Recording Plant Distributions. That is, the geographic region is defined as including the following areas, typically defined by the political boundaries of its constituents: Includes
The Hokkaidō deciduous forests ecoregion (WWF ID: PA0423) covers the northern and southern coasts of the island of Hokkaido, the northernmost of the main islands of Japan. The region sits in the transition zone between the colder subarctic forests to the north and the more temperate forests to the south.
The Japanese taimen (Hucho perryi) is the largest fish to enter freshwater in Japan and may reach sizes of up to 2 meters in length. The Japanese taimen is a critically endangered species including the Japanese populations which are restricted to the rivers and surrounding ocean of Hokkaido. Also present is the Japanese dace (Tribolodon ...
Greece is in the Palearctic realm. Ecoregions are listed by biome. Temperate broadleaf and mixed forests. Balkan mixed forests; Rodope montane mixed forests; Mediterranean forests, woodlands, and shrub. Illyrian deciduous forests; Pindus Mountains mixed forests; Aegean and Western Turkey sclerophyllous and mixed forests; Crete Mediterranean forests
These maps show a scale, or index of greenness, based on several factors: the number and type of plants, leafiness, and plant health. Where foliage is dense and plants are growing quickly, the index is high, represented in dark green. Regions with sparse vegetation and a low vegetation index are shown in tan.
The islands in the Japanese archipelago comprise about 1/400 of the world’s land. [1] The islands are located on a latitude that is normally dry; desert can be found elsewhere in the world at this latitude. However, the oceans surrounding Japan provide enough precipitation to maintain a temperate rainforest.