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New methods of extinction risk assessment for threatened plants

Research Project

Project/Area Number 11554037
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 系統・分類
Research InstitutionKyushu University

Principal Investigator

YAHARA Tetsukazu  Faculty of Science, Department of Biology, Kyushu University, Professor, 理学研究院, 教授 (90158048)

Co-Investigator(Kenkyū-buntansha) INOUE Ken  Shinshu University, Faculty of Science, Professor, 理学部, 教授 (40176425)
TAKAHASHI Hideki  Hokkaido University, Faculty of Agriculture, Professor, 農学部, 教授 (70142700)
MATSUDA Hiroyuki  University of Tokyo, Ocean Research Institute, Associate Professor, 海洋研究所, 助教授 (70190478)
KADONO Yasuro  Kobe University, Faculty of Science, Professor, 理学部, 教授 (90127358)
YOKOTA Masatsugu  Ryukyu University, Faculty of Science, Professor, 理学部, 教授 (90166885)
芹沢 俊介  愛知教育大学, 教育学部, 教授 (00111865)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥13,800,000 (Direct Cost: ¥13,800,000)
Fiscal Year 2001: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2000: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 1999: ¥5,600,000 (Direct Cost: ¥5,600,000)
Keywordsthreatened plants / conservation biology / risk analysis / red data book / environment assessment / IUCN
Research Abstract

The main purpose of this project was to establish new simple and practical methods of extincti on risk assessment. Main results of the project were as follows.
(1) Extinction risk assessment was performed for 365 spp which were qualified as DD (data deficient) in the Red List published by the Environment Agency (1997) and the result was used in the Red Data Book published by the Ministry of Environment (2000).
(2) We developed a simple equation to estimate decline rate per 10 years (R) using the quantitative data published in the RDB. Further, we developed an eqation to estimate mean extinction time (T) using R and population size (N).
(3) We developed a method of impact assessment for a land use plan in some area where threatened plants are native. This method uses mean extinction time (T) estimated by the above method.
(4) We developed two hotspot measures to identify hotspots of threats, and ranked secondary glids of Japan by using them.
(5) We compiled a database for all taxa of Japanese vascular plants.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] Matsuda H., Yahara Tほか: "Assessment of the impact of the Japanese 2005 World Exposition project on the extinction risk of vascular plants"Chemosphere. 50(印刷中). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Matsuda H, Yahara Tほか: "Extinction risk assessment of threatened species"Population Ecology. 42. 3-4 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 矢原徹一, 川窪伸光: "保全と復元の生物学-野生生物を救う科学的思考"文一総合出版. 260 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Matsuda H., Yahara T., et al.: "Assessment of the impact of the Japanese 2005 World Exposition project on the extinction risk of vascular plants"Chemosphere. 50 (in press). (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Matsuda H., Yahara T., et al.: "Extinction risk assessment of threatened species"Population biology. 42. 3-4 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Oka T, Matsuda H, Kadono Y: "Ecological risk-benefit analysis of a wetland development based on risk assessment using expected loss of biodiversity"Risk Analysis. 21. 1011-1023 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Matsuda H, Hada Y, Moriyama A, Washitani I: "'SATOYAMA' and environmental impact assessment for the World Exposition 2005 : A conservation ecological evaluation"Global Environment Research. 5. 183-192 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sugiura, N., Fujise, T., Inoue, K., Kitamura, K.: "Flowering phenology, pollination, and fruit set of Cypripedium macranthos var. rebunense, a threatened Lady's Slipper (Orchidaceae)"Journal of Plant Research. 114. 171-178 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Inoue, K.: "Present status of orchids in "SATOYAMA" area"Global Environment Research. 5. 163-169 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tamaki, K., T.Denda, M.Yokota: "Origin of triploids of Elatostema suzukii (Urticaceae) on Okinawa Island, the Ryukyus"Journal of Plant Research. 114. 377-380 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Matsuda,H.,Yahara,T.,and Kaneko,Y.: "Extinction risk assessment of threatened species"Population Ecology. 42. 3-4 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Ohkawa,T.,M.Yokota & T.Hoshino: "Aneuploidal population differentiation in Carex sociata Boott (Cyperaceae) of the Ryukyu"Botanical Journal of Linnean Society. 132. 337-358 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 高橋英樹,佐々木純一: "雨龍沼湿原の絶滅危惧植物"北方山草. 17. 4-7 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Nakamura,T.and Y.Kadono: "Genetic diversity of the submerged macrophyte Hydrilla verticillata (L.f.) Royle in a river system in Japan"Limnology. 1. 27-31 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 環境庁 編 矢原徹一 ほか 執筆: "レッドデータブック 植物I(維管束植物)"自然環境研究センター. 660 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 松田裕之: "環境生態学序説:持続可能な漁業,生物多様性の保全,生態系管理,環境影響評価の科学"共立出版. 211 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masuda,M.,Maki,M.,and Yahara,T.: "Effects of salinity and temperature on seed germination in a Japanese endangered halophyte Triglochin maritimum (Juncaginaceae)."Journal of Plant Research. 112・1108. 457-461 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Matsuda H,Yahara T & Kaneko Y.: "Special Feature:Extinction Risk Assessment of Threatened Species."Population Ecology. 42(印刷中未定). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Iida,S.and Y.Kadono: "Genetic diversity of Potamogeton anguillanus in Lake Biwa,Japan."Aquatic Botany. 64(印刷中未定). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Nakamura,T.and Y.Kadono.: "Genetic diversity of the submerged macrophyte Hydrilla verticillata(L.f.)Royle in a river system in Japan."Limnology. 1(印刷中未定). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Denda,T.& M.Yokota.: "A cytological study of Ixeris nakazonei (Asteraceae;Lactuceae)in Okinawa Island,the Pyukyus."Acta Phytotax.Geobot.. 50・1. 35-42 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Ohkawa,T.,M.Yokota,& T.Hoshino.: "Aneuploidal population differentiation in Carex sociate Boott(Cyperaceae)of the Ryukyu Islands,Japan."Bot.J.Linn.Soc.. 132(印刷中未定). (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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