Poster # 146. Fujikawa, Wendy¹, Higuera, Philip¹, Brubaker, Linda¹, Sprugel, Douglas^*,1, ¹ University of Washington, Seattle A 2,500-year record of fire mystery from small hollows, Orcas Island, Washington, U.S.A.

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Poster # 147. UMBANHOWAR, CHARLES¹, CAMILL, PHIL^*,2, TEED, BECKY³, GEISS, CHRISTOPH⁴, DVORAK, LEAH¹, KENNING, JON², LIMMER, JACOB², WALKUP, KRISTINA¹, ¹ St. Olaf College, Northfield, MN² Carleton College, Northfield, MN³ University of Minnesota, Minneapolis, MN⁴ Trinity College, Hartford, CT Climate, fire, and vegetation change over the past 10000 years at two sites along the prairie-forest border in south central Minnesota.

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Poster # 148. HUNZICKER, DAVE^*,1, CAMILL, PHIL¹, BICE, DAVID¹, ¹ Carleton College, Northfield, MN Periodic climate forcing in a 672-year drought severity reconstruction from Ponderosa pine in west-central Montana.

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Poster # 149. Ortega Rosas, Carmen^*,1, Peñalba, Cristina¹, ¹ Instituto de Ecología, Universidad Nacional Autónoma de México, Hermosillo, Sonora, México Late Holocene vegetation history and climate in NW Sierra Madre Occidental, Sonora, Mexico.

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