IBE Researchers try to confirm Nabokov's thesis on Blue Butterflies New World's colonisation in a study that will be published shortly at Proceedings of the Royal Society  Vila, R., Bell, C.D., Macniven, R., Goldman-Huertas, B., Ree, R.H., Marshall, C.R., Bálint, Zs., Johnson, K., Benyamini, D. & Pierce, N.E. (2010) Phylogeny and paleoecology of Polyommatus blue butterflies show Beringia was a climate-regulated gateway to the New World. Proceedings of the Royal Society of London: Biological Sciences (in press).