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Effects of pathogens and parasites on wildlife populations

Research Project

Project/Area Number 13480181
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 環境保全
Research InstitutionNational Institute for Environmental Studies

Principal Investigator

TSUBAKI Yoshitaka  National Institute for Environmental Studies, Biodiversity Conservation Research Project, Director, 生物多様性研究プロジェクト, プロジェクトリーダー (30108641)

Co-Investigator(Kenkyū-buntansha) GOKA Koichi  National Institute for Environmental Studies, Research Center for Environmental Risk, Team Leader, 化学物質環境リスク研究センター, 室長 (90300847)
NAGATA Hisashi  National Institute for Environmental Studies, Biodiversity Conservation Research Project, Researcher, 生物多様性研究プロジェクト, 主任研究員 (00202226)
TAKAMURA Kenzi  National Institute for Environmental Studies, Biodiversity Conservation Research Project, Team Leader, 生物多様性研究プロジェクト, 総合研究官 (40163315)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥11,500,000 (Direct Cost: ¥11,500,000)
Fiscal Year 2003: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2002: ¥4,500,000 (Direct Cost: ¥4,500,000)
Fiscal Year 2001: ¥4,700,000 (Direct Cost: ¥4,700,000)
Keywordseugregrine / damselfly / mite / bumblebee / warbler / Plasmodium / survival / infection / 病原生物 / 野生生物 / 抵抗性 / コジュリン / セイヨウマルハナバチ
Research Abstract

We investigated the relationship between the abundance of mid-gut parasites (eugregarine trophozooites) and the survival of hosts (field-collected damselflies, Mnais costalis) under laboratory conditions. Males of M.costalis are morphologically and behaviorally polymorphic, typically existing as clear-winged nonterritorial sneaks and orange-winged territorial fighters (the latter are larger in size). The survival cost of eugregarine infection for the two morphs was compared. The results suggest that the abundance of eugregarine parasites exerts a substantial cost, which is associated with the maintenance of alternative mating strategies, together with the higher developmental cost and energy expenditure of the fighter morph.
We investigated natural populations of three Japanese native bumblebee species to determine the infection by a tracheal mite, Locustacarus buchneri, which had been detected in introduced commercial colonies of the European bumblebee, Bombus terrestirs. The results indicated that transportation of bumblebee colonies will cause overseas migration of parasitic mites of different origins.
We examined five warbler species (three migratory and two resident) for the prevalence of blood parasites. The blood mears were stained using Giemsa's stain to determine the presence of blood parasites under a microscope with a 100x oil immersed objective. Resident species were found to be less infected than migratory species with Plasmodium sp. This low prevalence of blood parasites possibly due to the lack to suitable insect vectors (e.g., mosquitoes) within Japan, however, the global climate change may cause higher parasite prevalence in resident warbles due to northward shift of vector distributions.

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] 椿 宜高: "Investment in immune function under chronic and acute immune challenge in an insect."Physiological Entomology. 26. 1-5 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Takaki, K.Eguchi, H.Nagata: "The growth bars on tail feathers in the male Styan's Grasshopper Warbler may indicate quality"J.Avian Biology. 32. 319-325 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 五箇 公一: "Bumblebee commercialization will cause worldwide migration of parasitic mites"Molecular Ecology. 10. 2095-2099 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] A.Dyrcz, H.Nagata: "Breeding ecology of the Eastern Great Reed Warbler Acrocephalus arundinaceus orientalis at Lake Kasumigaura, central Japan"Bird Study. 49. 166-171 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 椿 宜高: "The genetic polymorphism linked to mate securing strategies in the male damselfly Mnais costalis Selys (Odonata : Calopterygidae)"Population Ecology. 45. 263-266 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 高村 健二: "Heterozygosity and genetic relationship of Japanese threespine stickleback populations revealed by microsatellite analysis"(in press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 永田 尚志: "生物多様性の危機とレッドデータブック、近畿地区鳥類レッドデータブック(山岸監修)"京大出版会. 13(3-15) (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] M.T.Siva-Jothy, Y.Tsubaki, R.Hooper, S.Plaistow: "Investment in immune function under chronic and acute immune challenge in an insect"Physiological Entomology. 26. 1-5 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Takaki, K.Eguchi, H.Nagata: "The growth bars on tail feathers in the male Styan's Grasshopper Warbler may indicate quality"J.Avian Biology. 32. 319-325 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Goka, K.Okabe, M.Yoneda, S.Niwa: "Bumblebee commercialization will cause worldwide migration of parasitic mites"Molecular Ecology. 10. 2095-2099 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] A.Dyrcz., H.Nagata: "Breeding ecology of the Eastern Great Reed Warbler Acrocephalus arundinaceus orientalis at Lake Kasumigaura, central Japan"Bird Study. 49. 166-171 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Tsubaki: "The genetic polymorphism linked to mate securing strategies in the male damselfly Mnais costalis Selys (Odonata : Calopterygidae)"Population Ecology. 45. 263-266 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Takamura: "Heterozygosity and genetic relationship of Japanese threespine stickleback populations revealed by microsatellite analysis"(inpress). (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 椿 宜高: "The genetic polymorphism linked to mate securing strategies in the male damselfly Mnais costalis Selys (Odonata : Calopterygidae)"Population Ecology. 45. 263-266 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 椿 宜高: "Effects of eugregarine parasites on adults longevity in the polymorphic damselfly Mnais costalis Selys"Eugregarines and a polymorphic damselfly. (in press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 五箇 公一: "マルハナバチ商品化をめぐる生態学的問題のこれまでとこれから"植物防疫. 57. 452-456 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 高村 健二: "Heterozygosity and genetic relationship of Japanese threespine stickleback populations revealed by microsatellite analysis"(in press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 永田 尚志: "Low prevalence of blood parasites in five Sylviidae species in Japan"Ornithological Science. 2. 73-74 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 椿 宜高: "Investment in immune function under chronic and acute immune challenge in an insect"Physiological Entomology. 26. 1-5 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 五箇 公一: "寄生生物"外来種ハンドブック(日本生態学会編). pp215. 217-219 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 五箇 公一: "輸入昆虫が投げかけた問題-農業用マルハナバチとペット用クワガタをめぐって"昆虫と自然. 37(5). 8-11 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 椿 宜高: "A message from a dragonfly : a condition dependent signal and a status dependent response"International Congress of Ecology. (in press). (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 永田 尚志: "Low prevalence of blood parasites in five Sylviidae species in Japan"Ornithological Science. 2(in press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Eguchi.K., Nagata.H.et al.: "Nosting habits of the Rufous Vanga in Madagascar"Ostrich. 72(3&4). 199-218 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Takaki, Y., Eguchi.K., Nagata: "The gooth bars on tail feathers in the male Styan's Grasshopper Warbler"J. Avian Biology. 32. 319-325 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Eguchi.K., S.Yamaguchi, S.Assai, Nagata: "Helping does not enhance reproductive success of cooperatively breeding Rufous Vange in Madagascar"J. Animal Ecology. 71. 123-130 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Dyrcz, A., Nagata H: "Breeding Ecology and effects of human activities on breeding success of the Eastern Great Read Warbler at Lake Kasumigaura"Bird Study. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nagata.H., Torikai.H, Saitoh T.: "The first capture record of Willow Warbler from Japan"Japanese J. Ornithology. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 五箇公一: "Bumblebee commercialization will cause world wide migration of parasitic mites"Molecular Ecology. 10. 2095-2099 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 永田 尚志: "生物多様性の危機とレッドデータブック、山岸監修「近畿地区鳥類レッドデータブック」"京大出版会(P3-15). 13 (2002)

    • Related Report
      2001 Annual Research Report

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

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