1:30 PM Wetzel, Paul^*,1, Kitchens, Wiley², Dusek, Marsha², ¹ Smith College, Northampton, Massachusetts, USA² University of Florida, Gainesville, Florida, USA Using classification tree analysis and structural equation models to investigate changes in tidal marsh communities.

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1:45 PM White, Susan^*,1, Alber, Merryl¹, ¹ University of Georgia, Athens, GA Will the marsh paradigm hold? Spartina distributions along the length of the Altamaha River Estuary, GA.

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2:00 PM Loftin, Cynthia¹, McCloskey, Jon², Kitchens, Wiley³, Dusek, Marsha⁴, ¹ USGS-BRD Maine Cooperative Fish and Wildlife Research Unit, Orono, Maine, USA² University of Maine, Orono, Maine, USA³ USGS-BRD Florida Cooperative Fish and Wildlife Research Unit, Gainesville, Florida, USA⁴ University of Florida, Gainesville, Florida, USA Changes in Savannah River tidal marsh vegetation distributions following removal of a tidal flap gate.

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2:15 PM Saunders, Colin^*,1, Reynolds, James¹, Megonigal, J², Drake, Bert², ¹ Department of Biology, Durham, NC, USA² Smithsonian Environmental Research Center, Edgewater, MD, USA Modeling the past 500 years of organic matter accumulation in a Chesapeake Bay salt marsh.

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2:30 PM Komai, Katsuaki¹, Hibino, Tadashi¹, ¹ Depertment of Social and Environmental Engineering, Higashi-Hiroshima, Hiroshima, Japan Resuspension and physical properties of natural cohesive sediment in estuaries.

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2:45 PM Mullan, Caitlin^*,1, Silliman, Brian¹, Bertness, Mark¹, ¹ Brown University, Providence, RI, USA Spatial segregation of New England marsh plants across an estuarine salinity gradient.

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3:00 PM Traut, Bibit¹, ¹ University of California, Davis, CA The effects of nitrogen addition on the structure and dynamics of salt marsh vegetation.

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3:15 PM Break.

3:30 PM Huberty, Andrea^*,1, Denno, Robert¹, ¹ University of Maryland, College Park, MD Responses of saltmarsh-inhabiting insects to salt-stressed host plants.

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3:45 PM Stiling, Peter^*,1, Moon, Daniel¹, ¹ Department of Biology, Tampa, FL, USA Disentangling the effects of host plant quality and quantity on trophic interactions in a salt marsh community.

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4:00 PM Lee, Sarah^*,1, Silliman, Brian², ¹ University of North Carolina-Chapel Hill, Chapel Hill, NC² Brown University, Providence, RI Competitive displacement of the pulmonate snail Melampus bidentatus by a sympatric salt marsh gastropod.

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4:15 PM Schile, Lisa^*,1, Mopper, Susan¹, ¹ University of Louisiana, Lafayette, Lafayette, LA Leafminer performance on brackish and freshmarsh Iris hexagona under different salinity treatments.

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4:30 PM Richards, Christina¹, Donovan, Lisa¹, Hamrick, James¹, ¹ University of Georgia, Athensa, GA, USA Genetic diversity and fine scale population structure of the salt marsh perennial Borrichia frutescens.

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4:45 PM Ross, Michael^*,1, Ruiz, Pablo¹, ¹ Florida International University, Miami, Florida Reduced freeze incidence associated with global warming may promote mangrove encroachment in southeastern coastal marshes.

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