Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Homosexual rape and sexual selection in acanthocephalan worms

L G Abele, S Gilchrist

    Science (New York, N.Y.)
    |July 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Use of Lean Six Sigma methodology shows reduction of inpatient waiting time for peripherally inserted central catheter placement.

    Clinical radiology·2019
    Same author

    On the Failure Initiation in the Proximal Human Femur Under Simulated Sideways Fall.

    Annals of biomedical engineering·2017
    Same author

    Material mapping strategy to improve the predicted response of the proximal femur to a sideways fall impact.

    Journal of the mechanical behavior of biomedical materials·2017
    Same author

    The Development of Technology for Effective Respiratory-Gated Irradiation Using an Image-Guided Small Animal Irradiator.

    Radiation research·2017
    Same author

    Morphology based anisotropic finite element models of the proximal femur validated with experimental data.

    Medical engineering & physics·2016
    Same author

    The influence of the modulus-density relationship and the material mapping method on the simulated mechanical response of the proximal femur in side-ways fall loading configuration.

    Medical engineering & physics·2016

    Acanthocephalan males use cement glands to seal females after mating, preventing further insemination. This cement gland evolution in acanthocephalans is interpreted as a result of sexual selection and parental investment.

    Area of Science:

    • Parasitology
    • Evolutionary Biology
    • Behavioral Ecology

    Background:

    • Acanthocephalan males possess cement glands linked to the vas deferens.
    • These glands secrete a substance that forms a copulatory plug, sealing the female's vagina post-mating.
    • This plug prevents subsequent insemination by other males.

    Purpose of the Study:

    • To investigate the function and evolutionary implications of cement glands in acanthocephalans.
    • To understand the role of cement glands in both heterosexual and homosexual interactions.
    • To interpret the evolution of cement glands and associated sexual behaviors within a parental investment framework.

    Main Methods:

    • Observational studies of acanthocephalan reproductive behavior.
    • Analysis of secretions transferred during copulation and homosexual interactions.

    Related Experiment Videos

  • Interpretation of findings within the context of sexual selection theory.

    • Main Results:

    • Cement gland secretions are transferred to females during copulation, forming a plug.
    • In homosexual interactions, cement is transferred to males, sealing their genital region.
    • This sealing effectively removes males from the reproductive population.
    • Sperm transfer occurs during heterosexual copulation, but only cement is transferred during homosexual interactions.

    Conclusions:

    • The cement gland and its use in acanthocephalans are likely driven by sexual selection.
    • The observed behaviors align with predictions from parental investment models.
    • Cement gland secretions play a critical role in controlling fertilization and reproductive success in acanthocephalans.