Speciation by Natural and Sexual Selection: Models and Experiments

  • Kirkpatrick M
  • Ravigné V
  • 227


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.


Abstract: A large number of mathematical models have been developed that show how natural and sexual selection can cause prezygotic isolation to evolve. This article attempts to unify this literature by identifying five major elements that determine the outcome of speciation caused by selection: a form of disruptive selection, a form of isolating mechanism (assortment or a mating preference), a way to transmit the force of disruptive selection to the isolating mechanism (direct selection or indirect selection), a genetic basis for increased isolation (a one‐ or two‐allele mechanism), and an initial condition (high or low initial divergence). We show that the geographical context of speciation (allopatry vs. sympatry) can be viewed as a form of assortative mating. These five elements appear to operate largely independently of each other and can be used to make generalizations about when speciation is most likely to happen. This provides a framework for interpreting results from laboratory experiments, which are found to agree generally with theoretical predictions about conditions that are favorable to the evolution of prezygotic isolation.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Mark Kirkpatrick

  • Virginie Ravigné

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free