Self-compatibility is over-represented on islands.

Grossenbacher, D.L., Brandvain, Y., Auld, J.R., Burd, M., Cheptou, P.-O., Conner, J.K., Grant, A.G., Hovick, S.M., Pannell, J.R., Pauw, A., Petanidou, T., Randle, A.M., Rubio de Casas, R., Vamosi, J., Winn, A., Igic, B., Busch, J.W., Kalisz, S., Goldberg, E.E. 2017. Self-compatibility is over-represented on islands. New Phytologist, doi: 10.1111/nph.14534

http://onlinelibrary.wiley.com/doi/10.1111/nph.14534/full