Citation
Roy, H.E., Preston, C.D., Harrower, C.A., Rorke, S.L., Noble, D., Sewell, J., Walker, K., Marchant, J., Seeley, B., Bishop, J., Jukes, A., Musgrove, A., Pearman, D. & Booy, O. 2014. GB Non-native Species Information Portal: documenting the arrival of non-native species in Britain. Biological Invasions 16: 2505. doi:10.1007/s10530-014-0687-0