In collaboration with Patrick Fitze at the MNCN, we have used mitochondrial DNA and genome-wide AFLPs to study the phylogeography of the common lizard (Zootoca vivipara) across its range in Spain and southern France, identifying highly divergent lineages and documenting patterns of introgression among them. In addition we are using ecological niche models to associate patterns of genetic divergence to spatial variation in ecological variables in order to infer the relative role of ecology in driving evolutionary divergence. Also, in a recent study led by Luis San José as part of his PhD thesis , we have demonstrated the role of rock-paper-scissors dynamics in the evolution of the color polymorphism found in Z. vivipara (see publications below).
Milá, B., Y. Surget-Groba, B. Heulin, A. Gosá, P. S. Fitze. 2013. Multilocus phylogeography of the common lizard Zootoca vivipara at the Ibero-Pyrenean suture zone reveals lowland barriers and high-elevation introgression. BMC Evolutionary Biology, 13:192.
San-José, L. M., M. Peñalver-Alcázar, B. Milá, V. González-Jimena, P. S. Fitze. 2014. Cumulative frequency-dependent selective episodes allow for rapid morph cycles and rock-paper-scissors dynamics in species with overlapping generations. Proceedings of the Royal Society B, 281:20140976.