In three allopatric sister species of field crickets, we found that female driven pre-zygotic isolation is stronger than male driven pre-zygotic isolation, and that total pre-zygotic isolation exceeds post-zygotic isolation.
Gray, D. A., * Gutierrez, N. J., * Chen, T. L., * Gonzalez, C., Weissman, D. B., & Cole, J. A. 2015. Species divergence in field crickets: genetics, song, ecomorphology, and pre- and postzygotic isolation. Biological Journal of the Linnean Society published online: 11 SEP 2015, DOI: 10.1111/bij.12668