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

Why do females mate with multiple males?

Research Project

Project/Area Number 16370013
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Ecology/Environment
Research InstitutionKYUSHU UNIVERCITY

Principal Investigator

KASUYA Eiiti  Kyushu University, Faculty of Sciences, Associate Professor, 理学研究院, 助教授 (00161050)

Co-Investigator(Kenkyū-buntansha) MIYATAKE Takahisa  Okayama University, Faculty of Agriculture, Associate Professor, 農学部, 助教授 (80332790)
YASUI Yukio  Kagawa University, Faculty of Agriculture, Associate Professor, 農学部, 助教授 (30325328)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥7,200,000 (Direct Cost: ¥7,200,000)
Fiscal Year 2006: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2005: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2004: ¥3,100,000 (Direct Cost: ¥3,100,000)
Keywordspolyandry / sexual conflict / direct benefit / indirect benefit / cost of mating / harassment / 交尾のコスト / ハラスメント / 性的対立 / メスの直接的利益 / メスの間接的利益 / 複数回交尾 / 精子競争 / sexual conflict / アズキゾウムシ
Research Abstract

The number of males which a female mates with shows a large variation among animal species. This interspecific variation has been studied for a long time, based on hypotheses that invoke benefits of polyandry for females. We studied the evolution of monogamy/polyandry by using a species that has the genetic variation of the degree of polyandry among populations. This feature makes the crossing among populations with different levels of polyandry possible. We used the adzuki bean beetle (Callosobruchus chinensis). First, we examined the possibility that factors in one sex is responsible for the different levels of polyandry among populations. There were three possible case : only females are responsible, only males are responsible, and both are responsible. We also showed that there was a genetic variation of levels of polyandry among populations. Artificial selection experiments showed no correlated response in the rates of mating in two sexes. This suggested that the no genetic correlation in the rates of mating of two sexes. The direct benefit of polyandry for females was not shown. Several components of offspring fitness did not show the indirect benefit of polyandry for females. Males in the population with a higher level of polyandry showed a larger ability of sperm competition over males of the population with a lower level of polyandry. The level of polyandry was also affected by conditions including the time in a day and substrate for oviposition.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (21 results)

All 2007 2006 2005 Other

All Journal Article (20 results) Book (1 results)

  • [Journal Article] No genetic correlation between the sexes in mating frequency in the bean beetle, Callosobruchus chinensis2007

    • Author(s)
      Harano T, Miyatake T
    • Journal Title

      Heredity (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Different female mating rates in different populations do not reflect the benefits the females gain from polyandry in the adzuki bean beetle2007

    • Author(s)
      Sakurai G, Kasuya E
    • Journal Title

      Journal of Ethology (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Interpopulation variation in female remating is attributable to female and male effects in Callosobruchus chinensis2007

    • Author(s)
      Harano T, Miyatake T
    • Journal Title

      Journal of Ethology 25

      Pages: 49-55

    • NAID

      120002311824

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Drop or fly? Negative genetic correlation between death-feigning intensity and flying ability as alternative anti-predator strategies2007

    • Author(s)
      Ohno T, Miyatake T
    • Journal Title

      Proc. Royal Society London, B 274

      Pages: 555-560

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Drop or fly? Negative genetic correlation between death-feigning intensity and flying ability as alternative anti-predator strategies2007

    • Author(s)
      Ohno T, Miyatake T
    • Journal Title

      Proc.Royal Society London, B 274

      Pages: 555-560

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Different female mating rates in different populations do not reflect the benefits the females gain from polyandry in the adzuki bean beetle2007

    • Author(s)
      Sakurai G, Kasuya E
    • Journal Title

      Journal of Ethology (確定)(掲載予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] No genetic correlation between the sexes in mating frequency in the bean beetle, Callosobruchus chinensis2007

    • Author(s)
      Harano T, Miyatake T
    • Journal Title

      Heredity (確定)(掲載予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Effect of oviposition substrate on female remating in Callosobruchus chinensis (Coleoptera : Bruchidae)2006

    • Author(s)
      Harano T, Fujisawa M, Miyatake T
    • Journal Title

      Applied Entomology and Zoology 41

      Pages: 569-572

    • NAID

      110006148632

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Direct effects of polyandry on female fitness in Callosobruchus chinensis2006

    • Author(s)
      Harano T, Yasui Y, Miyatake T
    • Journal Title

      Animal Behaviour 71

      Pages: 539-548

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Direct effects of polyandry on female fitness in Callosobruchus chinensis.2006

    • Author(s)
      Harano T, Yasui Y, Miyatake T
    • Journal Title

      Animal Behaviour 71

      Pages: 539-548

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Heritable variation in polyandry in Callosobruchus chinensis2005

    • Author(s)
      Harano T, Miyatake T
    • Journal Title

      Animal Behaviour 70

      Pages: 299-304

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Intra-specific variation in strategic ejaculation according to level of polyandry in Callosobruchus chinensis2005

    • Author(s)
      Yamane T, Miyatake T
    • Journal Title

      Journal of Insect Physiology 51

      Pages: 1240-1243

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Intra-specific variation in strategic ejaculation according to level of polyandry in Callosobruchus chinensis.2005

    • Author(s)
      Yamane T, Miyatake T
    • Journal Title

      Journal of Insect Physiology 51

      Pages: 1240-1243

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Body-size dependent difference in death-feigning behavior of adult Callosobruchus chinensis.2005

    • Author(s)
      Hozumi N, Miyatake T
    • Journal Title

      Journal of Insect Behavior 18

      Pages: 557-566

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Heritable variation in polyandry in Callosobruchus chinensis.2005

    • Author(s)
      Harano T, Miyatake T
    • Journal Title

      Animal Behaviour 70

      Pages: 299-304

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Heritable variation of polyandry in Callosobruchus chinensis2005

    • Author(s)
      Tomohiro Harano, Takahisa Miyatake
    • Journal Title

      Animal Behaviour (in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] No genetic correlation between the sexes in mating frequency in the bean beetle, Callosobruchus chinensis

    • Author(s)
      Harano T, Miyatake T
    • Journal Title

      Heredity (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Different female mating rates in different populations do not reflect the benefits the females gain from polyandry in the adzuki bean beetle

    • Author(s)
      Sakurai G, Kasuya E
    • Journal Title

      Journal of Ethology (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Heritability and genetic correlation estimates in egg size and egg number in Callosobruchus chinensis.

    • Author(s)
      Yanagi S, Oikawa T, Miyatake T
    • Journal Title

      Annals of the Entomological Society of America 掲載決定

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Effects of body size on mating in the solitary bee, Colletes perforator.

    • Author(s)
      Shimamoto N, Kasuya E, Yasumoto A
    • Journal Title

      Annals of the Entomological Society of America 掲載決定

    • Related Report
      2005 Annual Research Report
  • [Book] 動物生態学 改訂版2005

    • Author(s)
      粕谷英一
    • Publisher
      海遊舎(印刷中)
    • Related Report
      2004 Annual Research Report

URL: 

Published: 2004-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi