Figure 5:  Global climate change will cause rising temperature, changes in precipitation, and shifts in vegetation. These changes will cause shifts in the habitats suitable for various plants and animals. Based on simulations with an observationally based model that closely matches the current summertime distribution of bobolinks, the shifts in climatic conditions that would result from a doubling of the atmospheric CO2 concentration are predicted to cause this migratory North American songbird to relocate northward (percentages are of abundance relative to the maximum density of bobolinks). Such poleward shifts are indicative of how many landscapes and species will be affected by and respond to global warming (see Appendix D for further information). Source: Redrawn from article by S.H. Schneider and T.L. Root entitled "Climate Change," appearing in Status and Trends of the Nation's Biological Resources, edited by M.J. Mac, P.A. Opler, C. E. Puckett-Haecker, and P.D. Doran, U.S. Dept. of the Interior, 1997.

Return To: Chapter 2