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Community organization of associates of the scleractinian coral Pocillopora damicornis

Research Project

Project/Area Number 01540551
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 生態学
Research InstitutionUniversity of the Ryukyus

Principal Investigator

TSUCHIYA Makoto  University of the Ryukyus, department of Biology, Professor, 理学部, 教授 (40108460)

Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1989: ¥1,000,000 (Direct Cost: ¥1,000,000)
KeywordsCommunity organization / Coral associates / Trapezia / Species interaction / Environmental heterogeneity / Habitat utilization / Species-area relation / Resource / 群集構造 / 種の多様性 / 種-面積関係
Research Abstract

Colony size and the inter and intraspecific interactions of the obligate symbionts of Pocillopora damicornis, i. e. xanthid crabs(Trapezia app.), a snapping shrimp(Alpheus lottini)and gobies(Paragobiodon app.), are examined in terms of their effects on the community structure of the coral associates. Species richness and diversity(H')and the number of associated animals increased with colony size, while eveness(J')was constant and high. In colonies with less than 1.5 cm3 interbranch space volume, no obligate symbionts were found. Obligate symbiont species and numbers increased with colony size : 1.5-12 cm3 --one individual of Trapezia or Cymo ; 15-23 cm3 --2 species, one individual each ; 24-71 cm3 --2 species including one heterosexual pair pf Trapezia or Paragobiodon ; 74-264 cm3 -- 2 or 3 species including 2 6r 3 heterosexual pairs ; . 331 cm3 --more than 4 species forming complex communities(maximum of 10 species in a colony of 1, 980 cm3). Females of Trapezia cymodoce expelled all introduced smaller individuals of Trapezia spp., but were frequently expelled by larger introduced crabs. Alpheus lottini sometimes expelled introduced Trapezia, but Trapezia rarely showed aggressive behavior toward A. lottini. A. lottini is most aggressive against conspecific intruder of the same sex, resulting in the occurrence of one heterosexual pair per colony. Carrying capacity of the habitat which is related to colony size, and species interactions between the residents and intruders are important factors in the organizing process of the associated animals community.

Report

(4 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • 1989 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] Tsuchiya,M.: "Community structure of small crustaceans associated with the coral Pocillopora damicornis and role of their intra- and interspecific interactions during its organization process." Abstracs of 5th International Congress of Ecology. 51 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 土屋 誠: "Marine hard bottom communities:structuring process and interand intraーspecific interactionsー生物群集の成立過程解明の手がかり" 個体群生態学会報. 47. 42-44 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 土屋 誠: "温帯域とサンゴ礁域の岩礁性潮間帯生物群集ー群集の成立過程と生態学における記載研究のすすめー" 海洋と生物. 12. 96-107 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tsuchiya,M.& C.Yonaha: "Community organization of associates of the scleractinian coral Pocillopora damicornis: effects od colony size and interactions among the obligate symbionts." Marine Ecology Progress Series.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tsuchiya,M.,Y.Yamauchi F.Moretzsohn & M.Tsukiji: "Species composition and some population traits of obligate symbiotic crabs,Trapezia and Tetralia,associated with the bleached corals." Proceedings of 7th International Coral.Reef Symposium.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 土屋 誠,宮城 康一(編): "南の島の自然観察・沖縄の身近な生き物と友達になろうー" 東海大学出版会, 213 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 日本海洋学会(編): "海と自然環境ー海洋学の最前線ー" 東京大学出版会, 409 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tsuchiya, M.: "Community structure of small crustaceans associated with the coral Pocillopora damicornis and role of their intra- and interspecific interactions during its organization process." Abstracts, 5th International Congress of Ecology. 51. (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tsuchiya, M.: "Marine hard bottom communities ; structuring process and inter and intra-specific interacions--analysis of the organizing process of biotic communities" Bulletin of Population Ecology, Japan. 47. 42-44 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tsuchiya, M.: "Rocky interdidal communities in temperate and coral reef areas : community organization and encouragement of descriptive study." Aquabiology. 12. 96-107 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tsuchiya, M. & C. Yonaha: "Community organization of associates of the scleractinian coral Pocillopora damicornis : effects of colony size and interactions among the obligate symbions." Ecol. Prog. Ser.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tsuchiya, M., Y. Yamauchi, F. Moretzsohn & M. Tsukiji: "Species composition and some population traits of obligate symbiotic crabs, Trapezia and Tetralia, associated with the bleached corals." Proceedings of the 7th International Coral Reef Symposium.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tsuchiya, M. & Y. Miyagi (eds.): "Observations on common plants and animals in southern Islands." Tokai University Press. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Oceanographical Society of Japan (ed.): "Sea and Earth Environments" Tokyo University Press. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Tsuchiya,M & C.Yonaha: "Community organization of associates of the scleractinian coral Pocillopora damicornis;effects of colony size and interactions among the obligate symbionts." Marine Ecology Progress Series.

    • Related Report
      1991 Annual Research Report
  • [Publications] Tsuchiya,M.,Y.Yamauchi F.Moretzsohn & M.Tukiji: "Species composition and some population traits of obligate symbiotic crabs,Trapezia and Tetralia,associated with the bleached corals" Proceedings of the 7th International Coral Reef Symposium.

    • Related Report
      1991 Annual Research Report
  • [Publications] 土屋 誠,宮城 康一(編): "南の島の自然観察ー沖縄の身近な生き物と友だちになろうー" 東海大学出版会, 213 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 日本海洋学会(編): "海と自然環境ー海洋学の最前線ー" 東京大学出版会, 409 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Tsuchiya,Makoto: "Community structure of small crustaceans associated with the coral Pocillopora damicornis and role of their intraー and interspecific interactions during its organization process" Abstracts of 5th International Congress of Ecology. 51 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 土屋 誠: "Marine hard bottom communities: Structuring process and interー and intraーspecific interactions ー生物群集の成立過程解明の手がかりを探るー" 個体群生態学会会報. 47. 42-44 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 土屋 誠: "温帯域とサンゴ礁域の岩礁性潮間帯生物群集ー群集の成立過程と生態学における記載研究のすすめー" 12. 96-107 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 土屋 誠(共著.日本海洋学会編): "海洋学の最前線ー地球環境と海(4章を分担執筆:共存と闘争の海.サンゴ礁ーあるサンゴ群体をめぐる生態学ー)" 東京大学出版会, 300 (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] Tsuchiya,Makoto: "Community structure of small crustaceans associated with the coral Pocillopora damicornis and role of their intra-and interspecific interactions during its organization process." Abstracts of 5th International Congress of Ecology. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 土屋誠: "Marine hard bottom communities:Structuring process and inter-and intra-specific interactions-生物群集の成立過程解明の手がかりを探る-" 個体群生態学会会報. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 土屋誠: "温帯域とサンゴ礁域の岩礁性潮間帯生物群集-群集の成立過程と生態学における記載研究のすすめ-" 海洋と生物. (1990)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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