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Introduction
| An introduction to the biological trends in the US, with emphasis on the Midwest.
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Human Population
| Trends in human population, sprawl, and recreation.
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Land Use
| Trends in land use and fragmentation.
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Forests
| Trends in forest cover, removals vs. growth, wildfire, composition.
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Water/Wetlands
| Trends in water use and wetlands.
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Invasive Species
| Distribution of invasives and impacts.
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Biodiversity/T&E Species/Species Abundance
| Distribution of threatened and endangered species and trends in species abundance.
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Environmental Contaminants
| Trends in environmental contaminants.
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Climate Change
| Past and potential future climate trends, with potential forest impacts.
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Conclusions
| Wrap up.
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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
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RWU NE-4153, USDA Forest Service, Northeastern Research Station, Delaware, Ohio, USA
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