First record of Greater White-toothed Shrew (Crocidura russula) in Northern Ireland

We describe the first record of the non-native invasive Greater White-toothed Shrew (Crocidura russula) in Northern Ireland. Trapping at the location in County Antrim did not reveal any further individuals in the surrounding vicinity. We suggest this record was likely a single individual, probably imported from elsewhere in Ireland. Jump dispersal via hitchhiking is likely important in the introduction, establishment and spread of invasive species. Due to its location, this recent record may have involved a horse transporter or other vehicle. Research into jump dispersal of invasive species by studying distributional patterns of spread may help identify transportation mechanisms and its importance in explaining species spread.