The Incredible Legacy of the Industrial Revolution . Kuehnast Lecture Series, Special Publication. Parmesan, C., Ryrholm, N., Stefanescu, C., Hill, J.K., Thomas, C.D., Descimon, H., Huntley, B., Kaila, L., Kullberg, J., Tammaru, T., Tennent, W.J., Thomas, J.A. and Warren, M. 1999. Poleward shifts in geographical ranges of butterfly species associated with regional warming. Thomas, C.D. and Lennon, J.J. 1999.
Birds extend their ranges northwards.