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Muroid Copulatory Plugs and Female Reproductive Tracts: A Comparative Investigation

Muroid Copulatory Plugs and Female Reproductive Tracts: A Comparative Investigation Abstract Structural variations in copulatory plugs and female reproductive tracts are described for 23 species of muroid rodents. Females were killed and examined 15 min after receiving one ejaculation from a conspecific male. Measurements of the copulatory plug and the female's reproductive tract were then recorded. The data suggest that: 1) vaginal length may be a significant determinant of plug length, the coagulant essentially occupying the entire vaginal lumen; 2) vaginal length significantly covaries with penile length; 3) lengths of the upper reproductive tract of the female are significantly related to her body mass and do not appear to be influenced by insemination; and 4) tract lengths do not appear to vary appreciably with the estrous cycle, at least in Peromyscus maniculatus bairdi. This content is only available as a PDF. © 1982 American Society of Mammalogists http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Mammalogy Oxford University Press

Muroid Copulatory Plugs and Female Reproductive Tracts: A Comparative Investigation

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References (18)

Publisher
Oxford University Press
Copyright
© 1982 American Society of Mammalogists
ISSN
0022-2372
eISSN
1545-1542
DOI
10.2307/1380677
Publisher site
See Article on Publisher Site

Abstract

Abstract Structural variations in copulatory plugs and female reproductive tracts are described for 23 species of muroid rodents. Females were killed and examined 15 min after receiving one ejaculation from a conspecific male. Measurements of the copulatory plug and the female's reproductive tract were then recorded. The data suggest that: 1) vaginal length may be a significant determinant of plug length, the coagulant essentially occupying the entire vaginal lumen; 2) vaginal length significantly covaries with penile length; 3) lengths of the upper reproductive tract of the female are significantly related to her body mass and do not appear to be influenced by insemination; and 4) tract lengths do not appear to vary appreciably with the estrous cycle, at least in Peromyscus maniculatus bairdi. This content is only available as a PDF. © 1982 American Society of Mammalogists

Journal

Journal of MammalogyOxford University Press

Published: Feb 25, 1982

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