Poster # 84. Watanabe, Kazuya¹, Shima, Eikichi^*,, Tutumi, Satoshi^*,, ¹ Kitasato University(school of Veterinary medicine and Animal sciences), Towada-shi, Japan, Study on the habitat of frogs of the rice paddy field on flatland in northern Japan.

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Poster # 85. Parr, Sara ^*,1, Robertson, G. Philip¹, ¹ Crop and Soil Sciences and Kellogg Biological Station, Michigan State University, Hickory Corners, MI, Long-term trends in nitrate leaching along a management intensity gradient.

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Poster # 86. McConnaughay, K¹, Brewer, E¹, Abts, A¹, Beaver, P¹, Morris, S¹, Morgan, P², Long, S², ¹ Bradley University, Peoria, IL² University of Illinois, Urbana-Champaign, IL, Farms of the future: soybean productivity and yield in a high- CO₂, high- O₃world.

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Poster # 88. Kochsiek, Amy^*,1, Knops, Johannes¹, ¹ University of Nebraska, Lincoln, Lincoln, NE, Carbon and nitrogen loss in 3 no-till agricultural systems.

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Poster # 89. Monsen, Katie^*,1, Shennan, Carol¹, ¹ University of California Santa Cruz, Santa Cruz, CA, Incorporating nitrogen fixation uncertainty into nutrient budgets for organic vegetable agroecosystems.

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Poster # 90. Parker, Jason ^{*,1, 3}, Moore, Richard ^{*,1, 2}, ¹ Agroecosystems Management Program, Wooster, OH, USA³ Department of Anthropology, Columbus, OH, USA² Human and Community Resource Development, Columbus, OH, USA, Conservation use and quality of life in a rural community: Goldschmidt's findings revisited and contributions of social science to agroecosystem solutions.

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Poster # 91. Hanson, D. Eric^*,1, Zajac, Leila², Schaafsma, Hoski³, ¹ American Samoa Community College, Pago Pago, AS² University of Chicago, Chicago, IL³ Arizona State University, Phoenix, AZ, A qualitative study of dry litter sustainable pig farming in Tutuila, American Samoa.

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Poster # 92. Smith, Richard^*,1, Menalled, Fabian¹, Maxwell, Bruce¹, Zabinski, Catherine¹, ¹ Montana State University, Bozeman, MT, Soil communities mediate weed abundance and crop productivity.

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Poster # 93. Ngugi, Moffatt^*,, Conant, Richard, , Characterizing Key Resource Areas in Kenyan rangelands by remote sensing.

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Poster # 94. Gray, Sharon^*,1, Dermody, Orla², DeLucia, Evan¹, ¹ University of Illinois at Urbana-Champaign, Urbana, IL, USA² University of Tennessee, Knoxville, TN, USA, Remote measurement of canopy reflectance shows changes in canopy phenology when soybeans (Glycine max) are grown in elevated [CO₂] and [O₃] in a field setting.

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Poster # 95. Manson, Robert^*,1, ¹ Instituto de Ecología, A.C., Xalapa, Veracruz, Mexico, A multi-taxonomic and multi-scale analysis of changes in biodiversity in coffee farms in central Veracruz, Mexico.

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