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Post-copulatory sexual selection and sexual conflict in the evolution of male pregnancy

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Listed:
  • Kimberly A. Paczolt

    (3258 TAMU, Texas A&M University, College Station, Texas 77845, USA)

  • Adam G. Jones

    (3258 TAMU, Texas A&M University, College Station, Texas 77845, USA)

Abstract

An end to male pregnancy Male pregnancy is restricted to seahorses, pipefish and their relatives — the family Syngnathidae — in which the young are nurtured in the male's brood pouch. These broody males do more than just act as a passive incubator, as Kimberly Paczolt and Adam Jones show in new research. It is already known that the brood pouch is a complex structure that nurtures the developing young. But as it nurtures, so can it weed. In the Gulf pipefish Syngnathus scovelli, males are shown to be capable of selectively aborting embryos from females perceived as less attractive, saving resources for more promising prospects encountered later. This is the only known example of postcopulatory sexual conflict in a sex-reversed species.

Suggested Citation

  • Kimberly A. Paczolt & Adam G. Jones, 2010. "Post-copulatory sexual selection and sexual conflict in the evolution of male pregnancy," Nature, Nature, vol. 464(7287), pages 401-404, March.
    • Handle: RePEc:nat:nature:v:464:y:2010:i:7287:d:10.1038_nature08861
    DOI: 10.1038/nature08861
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    Cited by:

    1. Kimberly A Paczolt & Adam G Jones, 2015. "The Effects of Food Limitation on Life History Tradeoffs in Pregnant Male Gulf Pipefish," PLOS ONE, Public Library of Science, vol. 10(5), pages 1-10, May.

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