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Impact of irrigation development projects on disease vectors in West Timor, Indonesia

Research Project

Project/Area Number 13576009
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field 寄生虫学(含医用動物学)
Research InstitutionSaga Medical School

Principal Investigator

MOGI Motoyoshi  Saga Medical School, Associate Professor, 助教授 (00039538)

Co-Investigator(Kenkyū-buntansha) HASEGAWA Hideo  Oita Medical College, Associate Professor, 助教授 (00126442)
SUNAHARA Toshihiko  Saga Medical School, Research Associate, 助手 (50264156)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥7,100,000 (Direct Cost: ¥7,100,000)
Fiscal Year 2002: ¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2001: ¥3,700,000 (Direct Cost: ¥3,700,000)
Keywordsrice field development / irrigation / dam / mosquito / vector-borne disease / malaria / Indonesia / West Timor / ダム建設 / 魚 / ネズミ / 国際研究者交流
Research Abstract

Impact of environmental changes caused by dam construction on disease vectors, especially fauna, density and seasonal dynamics of mosquitoes, were investigated in the suburbs of Kupang, West Timor, Indonesia. Observation was started just before the start of the project and continued until the completion of construction of the dam and associated irrigation systems and the start of construction of new irrigated rice filed.
The river above the dam site changed into the dam lake. As a consequence, mosquito larval habitats along river edges disappeared. In the new lake, the guppy and other released fished reproduced rapidly and suppressed mosquito breeding. Below the dam site, the amount of water flow decreased and slowly running parts increased. However, water level fluctuations due to artificial water discharge increased instability of mosquito habitats. Concrete-lined water channels connecting the dam and the rice fields were not mosquito habitats insofar as water flows but they became mo … More squito habitats if water was stagnant. The side ditches constructed along water channels in hill sides were often filled with the soil and kept stagnant water suitable for mosquito breeding. In the newly constructed irrigated rice fields, mosquitoes can breed throughout the year, and mosquito densities were high. Irrigation water is taken from the bottom of the dam through filters, so there was no fish in newly constructed channels and rice fields. Artificial introduction of larvivorous fishes into those habitats could effectively suppress mosquito breeding. Buildings destroyed and machines and other equipments discarded after the project afforded breeding sites for mosquito larvae. As basic information useful to prevention of vector-borne diseases in irrigation development projects in West Timor, distribution of larvivorous fishes and the parasites of rats were investigated.
Dam construction produces new mosquito habitats, but risks of mosquito breeding can be reduced by appropriate and constant improvement and maintenance. A widely accepted idea that dam construction increase the aquatic habitats and risks of epidemics of vector-borne diseases such a malaria is not necessarily correct. It is necessary to recognize also that the irrigation development can contribute to disease vector mosquito control by the increased water manageability. Less

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Yabe, T., Magi, M., Selomo, T., Noor, N.B.: "Migration of the roof rat, Rattus rattus, between houses and paddy fields in Indonesia"Medical Entomology and Zoology. 52・1. 43-47 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kamimura, K., Matsuse, I.T., Takahashi, H., Mogi, M., et al.: "Effect of temperature on the development of Aedes aegypti and Aedes albopictus"Medical Entomology and Zoology. 53・1. 53-58 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Wahid, I., Sunahara, T., Mogi, M.: "Mouthparts of male Aedes (Stegomyia) mosquitoes"Journal of American Mosquito Control Association. 18・2. 73-80 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Toma, T., Mogi, M.: "A new species of Topomyia (Diptera ; Culicidae) from Flores Island, Indonesia"Medical Entomology and Zoology. 54・1. 25-30 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Wahid, I., Sunahara, T., Mogi, M.: "Maxillae and mandibles of male mosquitoes and female autogenous mosquitoes (Diptera : Culicidae)"Journal of Medical Entomology. 40・2. 101-109 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yabe, T., Mogi, M., Selomo, T. and Noor, N.B.: "Migration of the roof rat, Rattus rattus, between houses and paddy fields in Indonesia"Medical Entomology and Zoology. 52・1. 43-47 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kamimura, K., Matsuse, I.T., Takahashi, H., Mogi, M. et al.: "Effect of temperature on the development of Aedes aegypti and Aedes albopictus"Medical Entomology and Zoology. 53・1. 53-58 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Wahid, I., Sunahara, T., and Mogi, M.: "Mouthparts of male Aedes (Stegomyia) mosquitoes"Journal of American Mosquito Control Association. 18・2. 73-80 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Toma, T. and Mogi, M.: "A new species of Topomyia (Diptera; Culicidae) from Flores Island, Indonesia"Medical Entomology and Zoology. 54・1. 25-30 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Wahid, I., Sunahara, T., and Mogi, M.: "Maxillae and mandibles of male mosquitoes and female autogenous mosquitoes (Diptera: Culicidae)"Journal of Medical Entomology. 40・2. 101-109 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yabe, T., Mogi, M., Selomo, T., Noor NB.: "Migration of the roof rat, Rattus rattus, between houses and paddy fields in Indonesia"Medical Entomology and Zoology. 52・1. 43-47 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kamimura, K., Matsuse, I.T., Takahashi H., Mogi.M, et al.: "Effect of temperature on the development of Aedes aegypti and Aedes albonictus"Medical Entomology and Zoology. 53・1. 53-58 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Wahid, I., Sunahara, T., Mogi, M.: "Mouthparts of male Aedes(Stegomyia) mosquitoes"Journal of American Mosquito Control Association. 18・2. 73-80 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Toma, T., Mogi, M.: "A new species of Topomyia (Diptera : Culicidae) from Flores Island, Indonesia"Medical Entomology and Zoology. 53・1. (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Wahid, I., Sunahara, T., Mogi M.: "Maxillae and mandibles of male mosquitoes and female autogenous mosquitoes (Diptera ; Culicidae)"Journal of Medical Entomology. 40・2. (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yabe, T., Mogi, M., Selomo, M., Noor, N.B.: "Migration of the roof rat, Rattus rattus, between houses and paddy fields in Indonesia"Medical Entomology and Zoology. 52・1. 43-47 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Iwasa, M.: "Taxonomic and faunistic notes on the Sepsidae (Diptera) in Seram, Indonesia"Entomological Science. 4・4. 533-538 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Wahid, I., Sunahara, T., Mogi, M.: "Mouthpart of male Aedes (Stegomyia) mosquitoes"Journal of the American Mosquito Control Association. 18・2(印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kamimura, K., Matsuse, I.T., Takahashi, H., Mogi, M.et al.: "Effect of temperature on the development of Aedes aegypti and Aedes albopictus"Medical Entomology and Zoology. 53・1(印刷中). (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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