Vegetation of the habitat of endangered <i>Lysimachia leucantha </i>Miq. in Ukishimagahara, Shizuoka Prefecture, central Japan

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  • 静岡県浮島ヶ原における絶滅危惧種サワトラノオの生育地の植生
  • シズオカケン ウキシマガハラ ニ オケル ゼツメツ キグシュ サワトラノオ ノ セイイクチ ノ ショクセイ

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Abstract

<p>Lysimachia leucantha is a rare and endangered wetland plant.　The information on its habitat and ecology is very limited.　I conducted a vegetation survey of its habitat in Ukishimagahara Nature Park, central Japan in 2014-2016.　The park has the only habitat of L. leucantha open to the public in Japan.　Its wetland vegetation is mowed in winter for management.　Phragmites australis, Carex thunbergii, C. dispalata and C. vesicaria dominated the habitat and Isachno-Caricetum thunbergii was the major community of the habitat.　Compared with the vegetation of 1993-1994, six study sites had changed from emergent communities to Carex communities with L. leucantha.　The increase of Carex communities and mowing seem to have maintained the habitat of L. leucantha.　Lysimachia leucantha disappeared from an area once dominant with the species and now not mowed for bird conservation.　It is obvious that wetland loss is the main cause of the reduction of the species in Japan.　There is a possibility that the wetland vegetation changes because of disuse of wetland plants and abolition of mowing also reduced the habitats of L. leucantha, not only in Ukishimagahara but also in other wetlands.</p>

Journal

  • Vegetation Science

    Vegetation Science 34 (1), 55-62, 2017

    The Society of Vegetation Science

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