Habitats and current individual number of Veronica ornata （Plantaginaceae）, a threatened perennial plant endemic to Japan

DOI IR Web Site

Bibliographic Information

Other Title
  • 絶滅危惧種トウテイラン（オオバコ科）の 分布・生育立地と現存個体数
  • ゼツメツ キグシュ トウテイラン(オオバコカ)ノ ブンプ ・ セイイク リッチ ト ゲンソン コタイスウ

Search this article

Abstract

Veronica ornata is a perennial plant endemic to Japan. Although V. ornata has been designated as a threat-ened species by the government of Japan and by some prefectural governments, few studies have examined its habitats and population sizes. Therefore, we investigated the distribution areas, habitat conditions, and num-ber of individuals of this plant in different localities: Kyotango City （Tango-sakyu and Kotohiki-hama）, Kyoto Prefecture; Yurihama Town, Tottori Prefecture; and Oki Islands, Shimane Prefecture. Over 15,000 individuals of V. ornata were counted in the Tango-sakyu coast. In contrast, fewer than 70 individuals were observed in Yurihama town. Veronica ornata habitats were categorized into the following five types based on topographical conditions, location, and influence of human activities: 1） coastal dune, 2） coastal cliff, 3） inland cliff, 4） arti-ficial slope, and 5） pastureland. Across all study sites, the main habitats of V. ornata were found to be coastal dune and coastal cliff. In the Oki Islands, it is important to conserve not only the coastal cliff habitats of V. ornata, but also the inland cliff habitats.

Journal

Related Projects

See more

Details 詳細情報について

Report a problem

Back to top