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

Aggression patterns and speciation.

E Nevo, G Naftali, R Guttman

    Proceedings of the National Academy of Sciences of the United States of America
    |August 1, 1975
    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

    Diversity and Sources of Multiple Disease Resistance in Hordeum spontaneum.

    Plant disease·2019
    Same author

    Seedling Resistance to Tan Spot and Stagonospora nodorum Leaf Blotch in Wild Emmer Wheat (Triticum dicoccoides).

    Plant disease·2019
    Same author

    Adaptive energy metabolism in four chromosomal species of subterranean mole rats.

    Oecologia·2017
    Same author

    Foraging strategy in a subterranean rodent, Spalax ehrenbergi: a test case for optimal foraging theory.

    Oecologia·2017
    Same author

    Stripe smuts of grasses: one lineage or high levels of polyphyly?

    Persoonia·2015
    Same author

    Adaptive evolution of duplicated hsp17 genes in wild barley from microclimatically divergent sites of Israel.

    Genetics and molecular research : GMR·2014
    Same journal

    Chemotactic self-organization captures the dynamics of mammalian hair follicle patterning.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Tomographic imaging of superconducting order using particle-hole interference.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Inhibitory potential of autologous neutralizing antibodies sets quantitative limits on the rebound-competent HIV-1 reservoir.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Inferring epidemiological parameters under an infectious phylogeography model with visitor dynamics.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Analytical modeling for suction cup designs for skin-interfaced wearable devices.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    Same journal

    Improving cell-free metabolism through direct integration of artificial respiratory chains.

    Proceedings of the National Academy of Sciences of the United States of America·2026
    See all related articles

    Interspecific aggression in mole rats increases during speciation. This heightened aggression acts as a premating isolating mechanism, reinforcing species boundaries and promoting distinct populations.

    Area of Science:

    • Evolutionary biology
    • Behavioral ecology
    • Speciation research

    Background:

    • Interspecific aggression plays a role in the evolutionary process of speciation.
    • The fossorial rodent Spalax ehrenbergi in Israel provides a model system for studying active speciation.
    • Understanding aggression patterns can elucidate mechanisms of reproductive isolation.

    Purpose of the Study:

    • To investigate the evolutionary significance of interspecific aggression in the speciation of Spalax ehrenbergi.
    • To determine if aggression levels differ between sexes and among chromosome forms.
    • To assess the role of aggression as a premating isolating mechanism.

    Main Methods:

    • Laboratory experiments involving 48 Spalax ehrenbergi from 10 populations across three chromosome forms (2n = 52, 58, 60).

    Related Experiment Videos

  • Recorded 12 behavioral variables during 72 homo- and heterogametic combats.
  • Analyzed aggression data using nonmetric multivariate Smallest Space Analysis (SSA-II).

    • Main Results:

    • Aggression patterns were significantly higher in heterogametic encounters compared to homogametic ones.
    • Aggression levels were greater between contiguous chromosome forms (e.g., 2n=58-60) than noncontiguous forms (e.g., 2n=52-60).
    • These findings support the role of aggression in reproductive isolation.

    Conclusions:

    • High interspecific aggression is adaptively selected in the final stages of mole rat speciation.
    • Aggression functions as a premating isolating mechanism, reinforcing species identity.
    • This mechanism contributes to the establishment of parapatric distributions in evolving Spalax species.