COS 167 - Paleoecology

Thursday, August 9, 2012: 1:30 PM-5:00 PM
B117, Oregon Convention Center
1:50 PM
 A methodological step forward to quantify past population size of large herbivores and the impact of their disturbance regime
Ambroise G. Baker, University of Oxford; Perry Cornelissen, Ministry of Infrastructure and the Environment; Shonil A. Bhagwat, University of Oxford; Katherine J. Willis, University of Oxford
2:10 PM
 Long-term stasis in mammalian community structure: The fossil record as a tool for conservation planning
M. Allison Stegner, University of California, Berkeley; Michael Holmes, University of California, Berkeley
2:30 PM
 How many lake-sediment cores do we need to characterize regional fire-regime changes using macro-charcoal records?
Carolyn M. Barrett, University of Illinois at Urbana-Champaign; Feng Sheng Hu, University of Illinois at Urbana-Champaign
2:50 PM
 Retrospective analysis of the role of Gloeotrichia echinulata in mediating early lake eutrophication
Holly A. Ewing, Bates College; Kathryn L. Cottingham, Dartmouth; Kathleen C. Weathers, Cary Institute of Ecosystem Studies; Peter R. Leavitt, University of Regina; Alyeska U. Fiorillo, Bates College; John E. MacKenzie, Bates College; Brian P. Quarrier, Bates College; Cayelan C. Carey, Virginia Tech; Emil Rydin, Uppsala University
3:10 PM
3:20 PM Cancelled
 Automating tropical pollen analysis using layered machine learning
Surangi W. Punyasena, University of Illinois; David K. Tcheng, University of Illinois/National Center for Supercomputing Applications; Derek S. Haselhorst, University of Illinois
3:40 PM
 Bison grazing intensity predicts the abundance of the dung fungus proxy Sporormiella at Konza Prairie: Implications for the Holocene paleoecology of the Great Plains
Jacquelyn L. Gill, University of Maine; Kendra K. McLauchlan, Kansas State University; John W. (Jack) Williams, University of Wisconsin, Madison
4:00 PM
 Body size in the fourth dimension: A paleoecological test of Bergmann's Rule
John D. Orcutt, University of Oregon; Samantha S.B. Hopkins, University of Oregon
4:20 PM
 Before the Younger Dryas and after Columbus: Further studies of Sporormiella records from New York and New Jersey
Guy S. Robinson, Fordham College at Lincoln Center; Mary G. Egan, Fordham College at Lincoln Center
4:40 PM
 Colder springs and warmer, wetter summers during the late glacial climate of central North America: inferences from stable isotopes δD and δ13C and wood anatomy of sub-fossil oak wood
Steven L. Voelker, Southern Oregon University; Frederick C. Meinzer, USDA Forest Service; Barbara Lachenbruch, Department of Forest Ecosystems & Society; J. Renee Brooks, US EPA, Western Ecology Division, NHEERL; Michael C. Stambaugh, University of Missouri; Richard P. Guyette, University of Missouri