Shizuoka
No.241 Okegaya-numa and Tsuruga-ike Criteria for selection:1,2 Okegaya-numa City:C/Town:T/ Village:V Wetland type Biota Habitat Reason for selection Iwata C Mixed Bogs, Fens, Lakes and marshes, Swamplands Wetland vegetation Okegaya-numa and Tsuruga-ike Marsh plant communities dominated by Phragmites communis. There also occur communities of Phragmites communis, Zizania latifolia and Carex thunbergii. Found also are many rare aquatic plants that are infrequently encountered elsewhere in the prefecture, including Utricularia australis and Euryale ferox. Insects Okegaya-numa and Tsuruga-ike Habitat of Libellula angelina (classified as Endangered (EN) or Critically Endangered (CR)) and Lestes japonicus. The only places throughout Honshu (mainland of Japan) that abound in Libellula angelin. Habitat of Ilycoris exclamationis, Gerris esakii and Hesperocorixa distanti hokkensis, all classified as Near Threatened species. [ Back ]
Copyright (c) 2002 The Ministry of the Environment, Japan All rights reserved.