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Author (up) Yanagi, S.-I.; Miyatake, T. url  doi
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  Title Costs of mating and egg production in female Callosobruchus chinensis Type Journal Article
  Year 2003 Publication Journal of Insect Physiology Abbreviated Journal J Insect Physiol  
  Volume 49 Issue 9 Pages 823-827  
  Keywords Animals; Beetles/*physiology; Female; Longevity/*physiology; Oviposition/*physiology; Reproduction/physiology; Sexual Behavior, Animal/*physiology  
  Abstract Costs of reproduction include the costs of mating and egg production. Specific techniques such as irradiation or genetic mutation have been used to divide the expense into costs of mating and egg production in previous studies. We tried to divide the costs in the adzuki bean beetle, Callosobruchus chinensis (Coleoptera: Bruchidae), which needs some kinds of bean as an oviposition substrate. Mated females that were not allowed to lay eggs had a shorter life span than virgin females, but they had a longer life span than mated females that were allowed to lay eggs. The results showed two independent significant costs, mating and egg production, on the life span in C. chinensis. Costs of mating, however, include the costs of sexual harassment by males and copulation itself, and we need further studies to divide the costs. The present method for dividing the cost of reproduction into costs of mating and egg production can be applied to a broad taxonomic range of insect species, and thus it will be a useful model system for inter-specific comparisons of costs of mating and egg production.  
  Address Laboratory of Animal Population Ecology, Faculty of Agriculture, Okayama University, Okayama 700-8530, Japan  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0022-1910 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16256684 Approved no  
  Call Number GGC @ mschluet @ Serial 29  
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