Dear All, The following paper has been recently published on-line in Conservation Genetics. Risso’s dolphins (Grampus griseus) in UK waters are differentiated from a population in the Mediterranean Sea and genetically less diverse Stefania Gaspari, Sabina Airoldi, A. Rus Hoelzel Abstract The Risso’s dolphin (Grampus griseus) has a worldwide distribution, but little is known about their population genetic structure. Local coastal populations are never known to be abundant, and are sometimes under anthropogenic impact. Therefore the question of regional differentiation by genetic drift and overall diversity levels is of conservation interest. Here we present preliminary data that clearly indicate genetic differentiation and lower genetic diversity of a population sampled in UK waters (primarily from the Western Isles, Scotland) compared to a Mediterranean sample. Significant differentiation was found in comparison with a sample from the Mediterranean for both microsatellite DNA markers (FST = 0.0296) and mtDNA sequence data (FST = 0.260; /ST = 0.542). Allelic diversity was lower in the UK for nearly all loci. Kindest Regards, Stefania Gaspari _________________________________________ Stefania Gaspari, PhD Molecular Ecology Lab. Department of Animal Biology and Genetics University of Florence, Via Romana 17, Firenze, Italy stefaniagaspari@gmail.com Tel +39 055 2288290 Mob +39 333 7551556