Pregnancy interruption in Microtus ochrogaster: laboratory artifact or field phenomenon?

  title={Pregnancy interruption in Microtus ochrogaster: laboratory artifact or field phenomenon?},
  author={Edward J. Heske and Randy J Nelson},
  journal={Biology of reproduction},
  volume={31 1},
Females of at least 8 species of rodent will terminate pregnancies after exposure to a "strange" male or his odors in the laboratory. Although only suggestive evidence exists for the occurrence of pregnancy interruption in the field, this laboratory phenomenon has been assigned important adaptive roles in the reproductive biology of rodents. In the present study, the extent of pregnancy interruption was investigated for prairie voles (Microtus ochrogaster) in semi-natural enclosures where… CONTINUE READING


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