A Pregnancy Block Resulting from Multiple-Male Copulation or Exposure at the Tine of Mating in Deer Mice (Peromyscus Maniculatus)

  • Donald A. Dewsbury


Deer mice, Peromyscus maniculatus are known to engage in multiple-male copulations in the field. Litters conceived in the field are known to be of multiple paternity (Birdsall and Nash, 1973). In a subsidiary analysis of data from several experiments, Dewsbury and Baumgardner (1981) found evidence that females mating with more than one male may have a decreased probability of pregnancy compared to females receiving similar amounts of stimulation from one male. Three experiments were designed to verify and explore this phenomenon.


Litter Size Sperm Competition Deer Mouse Multiple Paternity Prairie Vole 
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Copyright information

© Springer Science+Business Media New York 1983

Authors and Affiliations

  • Donald A. Dewsbury
    • 1
  1. 1.Department of PsychologyUniversity of FloridaGainesvilleUSA

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