OCEAN CURRENT DISPERSAL OF SEVERAL TROPICAL CONVOLVULACEAE SPECIES IN KYUSHU, JAPAN

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  • 九州における熱帯産ヒルガオ科植物の海流散布
  • キュウシュウ ニ オケル ネッタイサン ヒルガオカ ショクブツ ノ カイリュウ サンプ

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Abstract

<p>Distribution expansion of several tropical Convolvulaceae species by ocean current dispersal were observed on the coast of Kyushu, Japan. Except Ipomoea pes-caprae which have been often reported, seedlings or adult plants of eight species from sea-borne seeds were newly found on or near the drift zone of many beaches; I. alba, I. cairica, I. fimbriosepala, I. stolonifera, Merremia peltata, Operculina turpethum and Stictocardia tiliifolia. These localities are beyond each producing area where species produce seeds and complete the life cycle.　These plants from sea-borne seeds were found on beaches where I. pes-caprae and tropical drift fruits and seeds were also found. Distribution expansion of these tropical Convolvulaceae species is a good indicator of global warming.</p>

Journal

  • Eco-Habitat: JISE Reaserch

    Eco-Habitat: JISE Reaserch 20 (1), 1-7, 2013-12-30

    Japanese Center for International Studies in Ecology,Institute for Global Environmental Strategies

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