RWU NE-4153, USDA Forest Service, Northeastern Research Station, Delaware, Ohio, USA
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Last updated: January 23, 2002	Contact: Anantha Prasad

Introduction: (Click image to enlarge)
Trends1.JPG 50.72 KB		Talk presented by Louis Iverson at the Midwest Fish and Wildlife annual meeting, Dec. 10, 2001. Des Moines, Iowa. Intention: to present a compilation of research and monitoring on the status and trends of biological resources of the US, with emphasis on the Midwest. Suggested citation: Iverson, L.R. 2002. Biological trends in the United States: an annotated on-line review.  http://www.fs.fed.us/ne/delaware/biotrends/biotrends.html
Trends2.JPG 55.91 KB		These are the topics considered in the presentation.
Trends3.JPG 81.07 KB		Most of the biological resource issues are related to each other as shown in Vitousek's diagram. Human population (numbers, resources used) is main driver via industry, agriculture, and urbanization. Vitousek PM. 1994. Beyond global warming ecology and global change. Ecology 75:1861-1902.