The Endangerment of Coastal Plants of Honshu, Shikoku and Kyushu Islands in Japan Based on National and Prefectural Red Data Books

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  • 国版および地方版レッドデータブックからみた日本の海岸植物の絶滅危惧の現状-本州・四国・九州における状況
  • 国版および地方版レッドデータブックから見た日本の海岸植物の絶滅危惧の現状--本州・四国・九州における状況
  • コクバン オヨビ チホウバン レッド データ ブック カラ ミタ ニホン ノ カイガン ショクブツ ノ ゼツメツ キグ ノ ゲンジョウ ホンシュウ シコク キュウシュウ ニ オケル ジョウキョウ

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Abstract

We investigated the distribution and Red Data Book (RDB) categories of Japanese coastal plants by referring to prefectural flora lists and national and prefectural RDBs to clarify the endangerment of Japanese coastal plants. We listed 167 species from the main islands of Japan, of which 23% were listed in the national RDB. Many salt marsh species were ranked in high-risk categories in both national and prefectural RDBs, and were extinct in some prefectures. Many plants of beaches and sand dunes were not listed in the national RDB, but were ranked in high-risk categories in many prefectural RDBs, and were extinct in some prefectures. Many plants of rocky coasts were listed in the national RDB, but only a few were actually extinct at the prefectural level.

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