1:30 PM Saah, David^*,1, Benning, Tracy¹, ¹ University of California, Berkeley, Berkeley, CA Partitioning of heterogeneity in an object-oriented riparian boundary classification system for a South African savanna.

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1:45 PM Schmitz, Denine¹, Patten, Duncan, ¹ Montana State University, Bozeman, 59717 Riparian patch types as indicators of watershed hydrologic complexity.

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2:00 PM Nelson, Karen^*,1, Palmer, Margaret¹, Hassett, Brooke¹, ¹ University of Maryland, College Park, MD, karen-nelson@erols.com Stream ecosystem structure and function at multiple scales: Effects of land use and impervious surface.

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2:15 PM Meier, Ouida^*,1, Meier, Albert¹, Grubbs, Scott¹, ¹ Western Kentucky University, Bowling Green, KY, USA Relationship between landuse and stream conditions in the karsted upper Green River watershed of Kentucky.

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2:30 PM Walbridge, Mark^*,1, Cade-Menun, Barbara², Dress, William¹, ¹ West Virginia University, Morgantown, WV² Stanford University, Stanford, CA Landscape analysis of soil characteristics of 12 forested floodplains in the southeastern US.

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2:45 PM Hupp, Cliff^*,1, King, Sammy, ¹ U.S. Geological Survey, Reston, Virginia, USA Sediment trapping along brown- and blackwater Coastal Plain riparian forested wetlands.

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3:00 PM Break.

3:15 PM Charron, Isabelle^*,1, Johnson, Edward ¹, ¹ University of Calgary, Calgary, Alberta, Canada The scale of tree dynamics on meandering streams.

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3:30 PM Pataki, Diane¹, ¹ University of Utah, Salt Lake City, UT Mechanisms of cottonwood decline in a riparian ecosystem along the Colorado River.

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3:45 PM Arnold, Heather^*,1, Aarssen, Lonnie^*,1, ¹ Queen's University, Kingston, ON, Canada The influence of local and regional parameters on species richness in riparian vegetation.

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4:00 PM Beauchamp, Vanessa^*,1, Stromberg, Juliet¹, ¹ Arizona State University, Tempe, AZ Cottonwood-willow stand structure on regulated and unregulated reaches of the Verde River, Arizona.

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4:15 PM Kennedy, Theodore^*,1, Hobbie, Sarah², Finlay, Jacques^*,2, ¹ Grand Canyon Monitoring and Research Center, Flagstaff, AZ, USA² University of Minnesota, Saint Paul, MN, USA Longitudinal and seasonal patterns of metabolism along a desert spring stream.

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