Climate and species range. Nature 382, 765-766 Parmesan, C., et al. Poleward shifts in geographical ranges of butterfly species associated with regional warming. Nature 399, 579-583. Thomas, C.D. and Lennon, J.J., 1999.
Birds extend their ranges northwards.
This site offers an extensive listing of scientific articles about the impacts of climate change on wildlife. This site is a gateway to several WWF online reports on the impacts of climate change on wildlife and protected areas.