[UNKNOWN: PRESTIME] Pruyn, Michele^*,1, Gartner, Barbara¹, Harmon, Mark¹, ¹ Oregon State University, Corvallis, OR. Why do tree species of varying sapwood thickness respire differently?

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[UNKNOWN: PRESTIME] Ocheltree, Troy^*,1, Marshall, John¹, Black, R. Alan², ¹ University of Idaho, Moscow, ID² Washington State University, Pullman, WA. Isotopic fractionation of ¹³C during respiration in Helianthus annuus.

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[UNKNOWN: PRESTIME] RYAN, MICHAEL^*,1,2, PHILLIPS, NATHAN³, BARNARD, HOLLY^1,2, ¹ USDA Forest Service Rocky Mountain Research Station, Fort Collins, CO² Colorado State University, Fort Collins, CO³ Boston University, Boston, MA. Use of CO₂ in xylem water by foliar photosynthesis can alter foliar ¹³C (but not by much).

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[UNKNOWN: PRESTIME] Hendrickson, Luke^*,1, Chow, Wah-Soon¹, Ball, Marilyn¹, Osmond, Charles², Wood, Jeff³, Furbank, Robert⁴, ¹ Research School of Biological Sciences, Canberra, ACT, Australia² Biosphere 2 Center-Columbia University, Oracle, AZ³ Statistical Consulting Unit, Canberra, ACT, Australia⁴ CSIRO Division of Plant Industry, Canberra, ACT, Australia. Differential carbon gain between east and west facing leaves: CO₂ and phosphate limitation associated with high light and low temperature .

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[UNKNOWN: PRESTIME] Campbell, Catherine^*,1, Sage, Rowan¹, ¹ University of Toronto, Department of Botany, Toronto, Ontario, Canada. Interactions between the effects of atmospheric [CO₂] and P nutrition on photosynthesis in white lupin (Lupinus albus L.).

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[UNKNOWN: PRESTIME] Alonso, Rocio^*,1, Nguyen, Tham¹, Cascio, Chiara², Grulke, Nancy¹, ¹ USDA-Forest Service, PSW Research Station, Riverside, CA² University of Florence, Firenze, Italy. Why are the stomata of ponderosa pine open at night?

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[UNKNOWN: PRESTIME] . Break.

[UNKNOWN: PRESTIME] Grulke, Nancy^*,1, ¹ USDA Forest Service, Riverside, CA. Environmental control of stomatal behavior: PPFR, VPD, and ... [O₃]?

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[UNKNOWN: PRESTIME] Bhaskar, Radika^*,1, Tirado-Fernandez, Reyes², Cavender-Bares, Jeannine³, Zlatnick, Daniel¹, Preston, Katherine¹, Ackerly, David¹, ¹ Stanford University, Stanford, CA² Estacion Experimental do Zonas Aridas (CSIC), Almeria, Spain³ Smithsonian Environmental Research Center, Edgewater, MD. Influences of whole plant water transport and drought on gas exchange within a chaparral community.

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[UNKNOWN: PRESTIME] Zhao, Ping^*,1, Peng, Shaolin¹, Zeng, Xiaoping¹, ¹ South China Institute of Botany, Chinese Academy of Sciences, Guangzhou, PR China. Ecological adaptation of leaf gas exchange of tree species used for re-vegetation under different experimental light regimes.

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[UNKNOWN: PRESTIME] Lerdau, Manuel^*,2, Munger, J. William¹, Jacob, Daniel¹, Volpe Horii, Cassandra, ² Ecology and Evolution Department, Stony Brook, NY¹ Earth and Planetary Sciences, Cambridge, MA. The exchange of reactive nitrogen between plants and the atmosphere.

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[UNKNOWN: PRESTIME] Hancock, Thomas^*,1, Smith, William¹, ¹ Wake Forest University, Winston-Salem, NC. Species living on the edge: ecophysiological adaptation to episodic events, climate change, and biodiversity in barrier beach plants .

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[UNKNOWN: PRESTIME] Wan, Shiqiang^*,1, Luo, Yiqi¹, ¹ Department of Botany and Microbiology, University of Oklahoma, Norman, OK. Effects of clipping and shading on soil respiration in tallgrass prairie.

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