[UNKNOWN: PRESTIME] Galbraith, Shannon^*,1, Martin, William¹, ¹ Eastern Kentucky University, Richmond, KY. Vegetation change in an old-growth eastern Kentucky forest: 1971-1999.

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[UNKNOWN: PRESTIME] BAKKER, JONATHAN^*,1, MOORE, MARGARET¹, SPRINGER, JUDY¹, CROUSE, JOSEPH¹, ¹ Northern Arizona University, Flagstaff, AZ. Long-term (85 year) understory vegetation change in Pinus ponderosa stands of northern Arizona.

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[UNKNOWN: PRESTIME] Archer, Jessica^*,1, Miller, Deborah², ¹ University of Florida, Gainesville, FL² University of Florida, Gainesville, FL. Vegetation and soil response to timber thinning operations: a chronosequence study.

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[UNKNOWN: PRESTIME] Powell, Scott^*,1, Hansen, Andrew¹, ¹ Montana State University, Bozeman, MT. Abiotic drivers of conifer forest expansion in the Greater Yellowstone Ecosystem.

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[UNKNOWN: PRESTIME] Drapek, Raymond^*,1, Lenihan, James¹, Neilson, Ronald¹, Bachelet, Dominique², ¹ USDA Forest Service, Corvallis, OR² Department of Bioengineering, Corvallis, OR. Comparing vegetation change maps: another alternative to the kappa statistic.

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[UNKNOWN: PRESTIME] Jia, Gensuo¹, Epstein, Howard^*,1, Walker, Donald², ¹ University of Virginia, Charlottesville, VA² University of Alaska Fairbanks, Fairbanks, AK. Spatial heterogenity of tundra vegetation response to warming in northern Alaska.

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[UNKNOWN: PRESTIME] Gamache, Isabelle^*,1, Payette, Serge¹, ¹ Université Laval, Québec, Québec, Canada. Responses of subarctic altitudinal tree lines to recent global warming in Québec, Canada.

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[UNKNOWN: PRESTIME] . Break.

[UNKNOWN: PRESTIME] CHAPIN, STUART^*,1, BERINGER, JASON², EUGSTER, WERNER³, LLOYD, ANDREA⁴, LYNCH, AMANDA⁵, MCFADDEN, JOSEPH⁶, MCGUIRE, DAVID¹, STURM, MATTHEW⁷, ¹ University of Alaska, Fairbanks, AK² Monash University, Clayton, Australia³ University of Bern, Bern, Switzerland⁴ Middlebury College, Middlebury, VT⁵ University of Colorado, Boulder, CO⁶ University of Minnesota, St. Paul, MN⁷ Cold Regions Research and Engineering Laboratory, Fairbanks, AK. Vegetation feedbacks to climate warming in Alaskan arctic and boreal ecosystems.

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[UNKNOWN: PRESTIME] Copass, Catharine^*,1, Beringer, Jason², Chapin, F¹, McGuire, A. David¹, Walker, Donald¹, ¹ Institute of Arctic Biology, Fairbanks, AK² School of Geography and Environmental Science, Clayton, Victoria, Australia. Relationship of structural complexity to land surface exchange along a gradient from arctic tundra to forest.

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[UNKNOWN: PRESTIME] MANNING, SARA^*,1, ¹ Inyo County Water Department, Bishop, CA. Response of groundwater dependent vegetation to precipitation and rising water table following drought in Owens Valley, California.

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[UNKNOWN: PRESTIME] Elmore, Andrew^*,1, Hamburg, Steven¹, Manning, Sara², Mustard, John¹, ¹ Brown University, Providence, RI² Inyo County Water Department, Bishop, CA. Land-use legacies of cultivation in the semi-arid west: a case study in Owens Valley, California.

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[UNKNOWN: PRESTIME] FLORES-FLORES, JOSE^*,1, YEATON, RICHARD², GARCIA-MOYA, EDMUNDO³, ¹ INSTITUTO POTOSINO DE INVESTIGACION CIENTIFICA Y TECNOLOGICA, SAN LUIS POTOSI, SAN LUIS POTOSI, MEXICO² UNIVERSIDAD AUTONOMA DE SAN LUIS POTOSI, SAN LUIS POTOSI, SAN LUIS POTOSI, MEXICO³ COLEGIO DE POSTGRADUADOS, TEXCOCO, EDO. MEXICO, MEXICO. Study of seedling establishment in shrubland communities in southern Chihuahua, Mexico.

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[UNKNOWN: PRESTIME] HEISLER, JANA^*,1, BRIGGS, JOHN¹, ¹ ARIZONA STATE UNIVERSITY, TEMPE, ARIZONA. The interaction of woody vegetation and fire in a C4 grassland: mechanisms driving shrub expansion.

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[UNKNOWN: PRESTIME] Brown, Kathryn^*,1, Hansen, Andrew¹, ¹ Montana State University, Bozeman, MT. A Landscape approach to aspen restoration: the Role of biophysical setting in aspen community dynamics.

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