• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Ecological Studies on the Social Evolution in Ocypodid Crabs

Research Project

Project/Area Number 06041082
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionField Research
Research InstitutionUniversity of the Ryukyus (1995)
Kyushu University (1994)

Principal Investigator

MURAI Minoru  Tropical Biosphere Research Center, University of the Ryukyus, Professor, 教授 (80117267)

Co-Investigator(Kenkyū-buntansha) HOI Sen yong  Department of Zoology, Universty of Malaya, 動物学教室, 教授
SOMBAT Poovachiranon  Phuket Marine Biological Center, Thailand, 主任研究員
KOMAI Tomoyuki  National History Museum and Institute, Chiba, 学芸研究員 (20260242)
MATSUMASA Masatoshi  School of Liberal Arts and Sciences, Iwate Medical Univerity, 助手 (50219474)
TAKEDA Satoshi  Marine Biological Station, Tohoku Univeristy, 理学部附属臨海実験所, 助手 (50171640)
WADA Keiji  Department of Biology, Nara Women's Univerity, 助教授 (80127159)
YONG Hoiーsen  マラヤ大学, 動物学教室(マレーシア), 教授
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥12,700,000 (Direct Cost: ¥12,700,000)
Fiscal Year 1995: ¥6,300,000 (Direct Cost: ¥6,300,000)
Fiscal Year 1994: ¥6,400,000 (Direct Cost: ¥6,400,000)
KeywordsSocial Behavior / Mating System / Evolution / Territory / Barricade / Commensalism / Burrow Filling / Reproduction
Research Abstract

Mating Systems of Uca
In Uca dussumieri spinata, females are widely dispersed, and males compete by trying to outrace rivals to receptive females. Courtship and mating in this species occur on the surface or in burrows females defend. In contrast, males of U.tetragonon court from and defend burrows to which females come for breeding (resource-defense mating systems). Underground copulations occurred frequently in the burrows males defended, and involved famales who had left their burrows and wandered through the colony. In these, matings also occurred on the surface near burrows that females defended and around which they fed. Surface copulations which occur in U.dussumieri spinata have been modified to a pattern in favor of the resource-defense polygyny in U.tetragonon.
Earthen Structures Built by Ilyoplax Crabs
I.ninqpoensis in Vietnam was found to commonly build an earthern structure, barricade, near its neighbor's burrow, and to perform burrow filling, as I.dentimerosa observed in Korea. But burrow filling was less effective to maintain their territories than barricade building in I.ninqpoensis.
Commensalism
Macrophthalmus banzai provide a home for Ilyoplax pingi in Korea and Uca dussumieri spinata for I.orientalis and others in Malaysia. But the host itself suffers no tangible ill-effects. In both cases, some Ilyoplax crabs had own burrows, and the other had not. In M.banzai and I.pingi, I.pingi contact their burrows with a burrow of M.banzai. Crabs that cohabit in burrows of the host species did not show any aggression toward inhabitants in the same burrow.

Report

(2 results)
  • 1995 Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] Koga T.,Goshima S.,Murai M.& Poovachiranon S.: "Predation and cannibalism by the male fiddler crab Uca tetraqonon." J.Ethol.13. 181-183 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Murai M.,Koga T.,Goshima S.& Poovachiranon S.: "Courship and the evolution of underground mating in Uca tetraqonon (Decapoda,Ocypodidae)." J.Crust.Biol.15. 655-658 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Komai T.,Goshima S.& Murai M.: "Crabs of the genus Macrophthalmus in Phuket Island,Thailand." Bull.Mar.Sci.56. 103-149 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Wada K.& Park J.K.: "Neighbour burrow-plugging in Ilyoplax pinqi Shen,1932 and I.dentimerosa Shen,1932 (Decapoda,Brachyura,Ocypodidae)." Crustaceana. 68. 524-526 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Komai T.: "Priority of Pandalopsis pacifica (Doflein,1902) over Pandalopsis mitsukurii rathbun,1902 (Decapoda,Caridea,Pandalidae)." Crustaceana. 68. 121-124 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Komai T.& Asakura A.: "Paqurixus nomurai,new species,and additional record of paqurixus maorus (Nobili,1906),Hermit crabs from Kume-jima Island,the Ryukyus,Japan (Decapoda : Anomura : Paguridae)." J.Crust.Biol.25. 341-354 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Komai T.: "Vercoia japonica,a new species of crangonid shrimp (Crustacea : Decapoda : Caridea) from Japan." Nat.Hist.Res.3. 123-132 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kikuchi S.& Matsumasa M.: "Pereopodal disk : a new thpe of extrabranchial ion-transporting organ in an estuarine amphipod,Melita setiflaqella (Crustacea)." Tissue Cell. 27. 635-643 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takeda S.,Matsumasa M.,Kikuchi S.,Poovachiranon S.& Murai M.: "Variation in the branchial formula of semi-terrestrial crabs (Decapoda : Brachyura : Grapsidae and Ocypodidae) in relation to physiological adaptations to the environment." J.Crust.Biol.(In press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takeda S.,Matsumasa M.,Yong H.S.& Murai M.: "“Igloo" construction by the ocypodid crab Dotilla myctiroides (Crustacea : Brachyura) : the role of an air chamber in burrowing in stulated sandy substratum." J.Exp.Mar.Biol.Ecol.(In press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ueda K.& Wada K.: "Allocleaning in an intertidal ocypodid crab,Macrophthalmus banzai." J.Ethol.(In press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Komai, T., Goshima, S.& Murai, M.: "Crabs of the genus Macrophthalmus in Phuket Island, Thailand." Bull.Mar.Sci.56. 103-149 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Murai, M., Koga, T., Goshima, S.& Poovachiranon, S.: "Courship and the evolution of underground mating in Uca tetragonon (Decapoda, Ocypodidae)." J.Crust.Biol.15. 655-658 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Koga, T., Goshima, S., Murai, M.& Poovachiranon, S.: "Predation and cannibalism by the male fiddler crab Uca tetragonon." J.Ethol.13. 181-183 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Wada, K.& Park, J.K.: "Neighbor burrow-plugging in Ilyoplax pinqi Shen, 1932 and I.dentimerosa Shen, 1932 (Decapoda, Brachyura, Ocypodidae)." Crustceana. 68. 524-526 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kikuchi, S.& Matsumasa, M.: "Pereopodal disk : a new type of extrabranchial ion-trnsporting organ in an estuarine amphipod, Melita setiflagella (Crustacea)." Tissue Cell. 27. 635-643 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Komai, T.: "Priority of Pandalopsis pacifica (Doflein, 1902) over Pandalopsis mitsukurii Rathbun, 1902 (Decapoda, Caridea, Pandalidae)." Crustaceana. 89. 121-124 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Komai, T.& Asakura, A.: "Paqurixus nomurai, new species, and additional record of Paqurixus maorus (Nobili, 1906), Hermit crabs from Kumejima Island, the Ryukyus, Japan (Decapoda : Anomura : Paguridae)." J.Crust.Biol.25. 341-354 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Komai, T.: "Vercoia Japonica, a new species of crangonid shrimp (Crustacea : Decapoda : Caridea) from Japan." Nat.Hist.Res.3. 123-132 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takeda, S., Matsumasa, M., Kikuchi, S., Poovachiranon, S.& Murai, M.: "Variation in the branchial formula of semiterrestrial crabs (Decapoda : Brachyura : Grapsidae and Ocypodidae) in relation to physiological adaptations to the environment." J.Crust.Biol.(In press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takeda, S., Matsumasa, M., Yong, H.S.& Murai, M.: ""Igloo" construction by the ocypodid crab Dotilla myctiroides (Crustacea ; Brachyura) : the role of an air chamber in burrowing in stulated sandy substratum." J.Exp.Mar.Biol.Ecol.(In press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ueda, K.& Wada, K.: "Allocleaning in an intertidal ocypodid crab, Macrophthalmus banzai." J.Ethol.(in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] T.Kosuge,et al.: "Male courtship cycles in three species of tropical llyoplax crabs(Decapoda,Brachyura,Ocypodidae)." Hydrobiologia. 285. 93-100 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Kosuge,et al.: "Breeding cycle and mating behavior of the tropical ocypodid llyoplax gangetica(Kemp 1919)(Crustacea,Brachura)." Tropical Zoology. 7. 25-34 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Wada: "Earthen structure built by llyoplax dentimerosa (Crustacea,Brachyura,Ocypodidae)" Ethology. 96. 270-282 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Komai,et al.: "Crabs of the genus Macrophthalmus of Phuket,Thailand(Crustacea,Decapoda,Ocypodidae)" Bull.Marine Science. 56. 103-149 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Takeda,et al.: "Change in branchial formula related to the physiological adaptation on the semi-terrestrial crabs." Marine Biology(in revision). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Murai,et al.: "Courtship and the evolution of underground mating in Uca tetragonon(Decapoda,Ocypodidae)" J.Crust.Biol.(in revision). (1995)

    • Related Report
      1994 Annual Research Report

URL: 

Published: 1994-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi