8:00 AM Allison, Steven^*,1, ¹ Department of Biological Sciences, Stanford, CA, USA Brown ground: A soil carbon analog for the Green World.

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8:20 AM Townsend, Alan^*,, Cleveland, Cory, Nutrient controls over litter decomposition in a lowland tropical rainforest.

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8:40 AM Cleveland, Cory ^*,1, Nemergut, Diana², Townsend, Alan ¹, Schmidt, Steve², ¹ INSTAAR, Boulder, CO, USA² Department of Ecology & Evolutionary Biology, Boulder, CO Dissolved organic carbon decomposition and the soil microbial community: Are molecular techniques the key to the black box?

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9:00 AM Uselman, Shauna^*,1, Qualls, Robert¹, Kluck, Juliane¹, ¹ University of Nevada-Reno, Reno, NV, USA Relative importance of root litter as an input of soluble organic C to forest nutrient cycling.

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9:20 AM Hobbie, Sarah^*,1, Reich, Peter¹, Oleksyn, Jacek^{1, 2}, Ogdahl, Megan¹, Zytkowiak, Roma², Hale, Cynthia¹, Karolewski, Piotr², ¹ University of Minnesota, Saint Paul, MN, USA² Polish Academy of Sciences, Kornik, Poland The effects of tree species on decomposition: Interactions between litter chemistry, earthworms and microbes.

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9:40 AM Break.

9:50 AM Lensing, Janet^*,1, Wise, David¹, ¹ University of Kentucky, Lexington, KY Impacts of altered precipitation on leaf-litter decomposition and forest-floor arthropods.

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10:10 AM Eviner, Valerie^*,1, Vaughn, Charles², ¹ Institute of Ecosystem Studies, Millbrook, NY, USA² Hopland Research and Extension Center, Hopland, CA, USA Seedling thinning contributes as much to internal N cycling as does decomposition of senesced litter.

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10:30 AM Wood, Tana^*,1, Lawrence, Deborah¹, Clark, Deborah², ¹ Department of Environmental Science, Charlottesville, VA, USA² University of Missouri, St. Louis, MO The influence of litter production on P cycling in a wet tropical rain forest.

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10:50 AM Sirulnik, Abby^*,1, Meixner, Thomas^*,1, Fenn, Mark^*,2, Allen, Michael^*,1, Allen, Edith^*,1, ¹ University of California, Riverside, CA, United States² USDA Forest Service, Riverside, CA, United States Nitrogen deposition alters soil and litter nutrient cycling in exotic annual grasslands of southern California.

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11:10 AM Fernandez, Daniel^{*,1, 2}, Neff, Jason^{1, 2}, Belnap, Jayne ³, Reynolds, Richard¹, ¹ US Geological Survey, Denver, CO, United States² University of Coloado, Boulder, CO, United States³ US Geological Survey, Moab, UT, United States Decomposition in a desert environment: Abiotic regulators and thresholds.

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