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Role and Status of Pioneer Species in the Dynamics of the Mixed Dipterocarp Forests

Research Project

Project/Area Number 02041071
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionField Research
Research InstitutionOsaka City University

Principal Investigator

YAMAKURA Takuo  Ass. Prof., Dept. Biol., Fac. Sci., Osaka City Univ., 理学部, 助教授 (10089956)

Co-Investigator(Kenkyū-buntansha) MORSHIDI Badang  Forest Guard, Sarawak Forest Department, Malaysia, Forest Gua
SYLVESTER Tang  Forest Guard, Sarawak Forest Department, Malaysia, Malaysia, Forest Gua
EARNEST Chai  Executive Forester, Sarawak Forest Department, Malaysia, Malaysia, Executive
HUA SENG Lee  Assistant Director, Sarawak Forest Department, Malaysia, Malaysia, Assistant
OHKUBO Tatsuhiro  Lecturer, Dept. For., Fac. Agri., Utsunomiya Univ., 農学部, 講師 (10176844)
TANIGUCHI Makoto  Ass. Prof., Dept. Biol., Fac. Sci., Osaka City Univ., 理学部, 助教授 (00047309)
BADANG Morsh  Sarawak Forest Department(Malaysia), Forest Gua
TANG Sylvest  Sarawak Forest Department(Malaysia), Forest Gua
CHAI Earnest  Sarawak Forest Department(Malaysia), Executive
LEE Hua Seng  Sarawak Forest Departmen(Malaysia), Assistant
TAN Sylvest  Sarawak Forest Department(Malaysia), Forest Gua
CHAI Ernest  Sarawak Forest Department(Malaysia), Executive
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥13,500,000 (Direct Cost: ¥13,500,000)
Fiscal Year 1991: ¥7,000,000 (Direct Cost: ¥7,000,000)
Fiscal Year 1990: ¥6,500,000 (Direct Cost: ¥6,500,000)
KeywordsMixed Dipterocarp Forest / community / Species Diversity / Community Structure / Community Dynamics / Pioneer / Life Strategy / South-east Asia
Research Abstract

Mixed dipterocarp forest is a symbol of wild nature in Asian tropics and is characterized by the great species diversity, tall architecture, and big local variations within the forest. Major professionals in tropical forest researches in the world become aware of the necessity of the long-term ecological research of the forests by establishing the large ecological plots with sizes such as 50 ha, for understanding the forests as they really are. This research project was carried out as a preparation for the long-term and large scale ecological research of the mixed dipterocarp forest in Sarawak through the following activities : 1) the establishment of the 50 ha plot, 2) mapping, forest inventory, and herbarium collection of living trees with DBHs over 1.0 cm, 3) the analysis of species diversity, forest structure, and community dynamics, 4) the comparison of life strategies among pioneer tree species, and 5) synthetic and ecological discussions about the role and status of pioneer species in the dynamics of mixed dipterocarp forest.
To demarcate the 50 ha plot with a reliable accuracy, we used an electronic tacheometer. The closure error of the plot was 1.0 m in forest survey. The plot was very complex in topography and included various habitats for plants. The 10 ha forest inventory was done during two year research activities. Pioneer species is short lived and grew faster than climax species, depended their regeneration on canopy gaps, had not effective anti-herbivory substances in leaves, and adopted seed bank strategy using toxic seed coat substances.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (7 results)

All Other

All Publications (7 results)

  • [Publications] 山倉 拓夫: "熱帯林研究ネットワ-クへの道" アニマ. 224. 52-53 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 山倉 拓夫: "サラワクの混合フタバガキ林における大面積調査区の設定" 日本熱帯生態学会ニュ-ズレタ-. 4. 1-6 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Takuo Yamakura: "Toward an International Research Network" Anima. 224. 52-53 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Takuo Yamakura: "Establishment of the Fifty Hectare Research Plot in the Mixed Dipterocarp Forest in Sarawak (In Japanese)." Tropical Ecology Letters. 4. 1-6 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 山倉 拓夫: "熱帯林研究ネットワ-クへの道" アニマ. 224. 52-53 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 山倉 拓夫: "サラワクの混合フタバガキ林における大面積調査区の設定" 日本熱帯生態学会ニュ-ズレタ-. 4. 1-6 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 山倉 拓夫: "熱帯林研究ネットワ-クへの参加顛末記" アニマ(平凡社刊). 5月号. (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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