T157 Combined Ecological and Geologic Perspectives in Modern Terrestrial Ecosystems

Tuesday, 30 October 2007
1:30 PM - 5:30 PM

Presentations

• 1:35 PM
  NUTRIENTS IN GRASSLAND SOILS OF THE CENTRAL COLORADO PLATEAU—SPATIAL CONTROLS BY SUBSTRATE COMPOSITION, GEOMORPHIC SETTING, AND LAND-USE EFFECTS
  Richard Reynolds, U.S. Geological Survey, Denver, CO and Jason Neff, University of Colorado, Boulder, CO and Frank Urban, U.S. Geological Survey, Denver, CO and Harland Goldstein, U.S. Geological Survey, Denver, CO and Daniel Fernandez, University of Colorado, Boulder, CO and Marith Reheis, U.S. Geol Survey, Denver, CO and Jayne Belnap, United States Geological Survey, Moab, UT
  124294 (Technical Sessions)
• 1:55 PM
  SAND DEPOSITION AND VEGETATION PATTERNS ON A PARABOLIC DUNE ON THE SOUTHEASTERN SHORE OF LAKE MICHIGAN
  Suzanne J. DeVries-Zimmerman, Hope College, Holland, MI and Edward Hansen, Hope College, Holland, MI and Ryan Zietlow, Hope College, Holland, MI and Kathy Winnett-Murray, Hope College, Holland, MI
  129488 (Technical Sessions)
• 2:10 PM
  POST-FIRE WIND EROSION IN SEMIARID SHRUB STEPPE: OBSERVATIONS FROM FIELD AND REMOTELY SENSED DATA
  Joel Sankey, Idaho State University, Pocatello, ID and Nancy Glenn, Idaho State Univ, Boise, ID and Matt Germino, Idaho State University, Pocatello, ID
  129134 (Technical Sessions)
• 2:25 PM
  THE REACTION PROGRESS VARIABLE IN ISOTOPE ECOLOGY
  Thure Cerling, University of Utah, Salt Lake City, UT and James Ehleringer, University of Utah, Salt Lake City, UT and David Podlesak, University of Utah, Salt Lake City, UT
  124963 (Technical Sessions)
• 2:45 PM
  THE IMPACT OF COAL-BED METHANE SEEPAGE ON A SOIL MICROBIAL COMMUNITY
  Christopher T. Mills, Colorado School of Mines, Golden, CO and Gregory F. Slater, McMaster University, Hamilton, ON and Robert F. Dias, Old Dominion University, Norfolk, VA and Kevin W. Mandernack, Colorado School of Mines, Golden, CO
  128318 (Technical Sessions)
• 3:00 PM
  WEATHERING, MARINE, AND VOLCANIC EMISSION CONTRIBUTIONS OF SULFUR TO HAWAIIAN ECOSYSTEMS AND SOILS
  Carleton R. Bern, Univ of California - Santa Barbara, Santa Barbara, CA and Carol Kendall, Menlo Park, CA and Tony Hartshorn, Univ of California, Santa Barbara, N/A and Oliver A. Chadwick, Univ California - Santa Barbara, Santa Barbara, CA
  130113 (Technical Sessions)
• 3:15 PM
  ORGANIC MATTER AND STABLE ISOTOPIC RECORD IN NAINITAL LAKE SEDIMENTS IN KUMAUN HIMALAYAS, INDIA
  Preetam Choudhary, Indian Institute of Technology, Roorkee, N/A and Joyanto Routh, Stockholm University, Stockholm, N/A and Govind J. Chakrapani, Indian Institute of Technology, Roorkee, N/A and Bhishma Kumar, National Institute of Hydrology, Roorkee, N/A
  132627 (Technical Sessions)
• 3:40 PM
  NITRIFICATION AND DENITRIFICATION IN A GROUNDWATER CONTAMINANT PLUME ON CAPE COD—SORTING THROUGH PHYSICAL, GEOCHEMICAL AND BIOLOGICAL CONTROLS ON PROCESS FUNCTION
  Richard Smith, US Geological Survey Water Resources Division, Boulder, CO
  127026 (Technical Sessions)
• 4:00 PM
  DISCERNING THE LIMITING NUTRIENT TO PHYTOPLANKTON GROWTH IN RIVERS AND BAYOUS ON THE NORTH SHORE OF LAKE PONTCHARTRAIN
  Sarah M. Fearnley, New Orleans, LA and Carl W. Bohling, New Orleans, LA
  126715 (Technical Sessions)
• 4:15 PM
  CHANGES IN RIVER ECOLOGICAL FUNCTIONALITY DUE TO RAPID ALTERATIONS OF CHANNEL MORPHOLOGY IN TWO CALIFORNIA RIVERS
  Marisa I. Escobar, Univ of California, Davis, Davis, CA and Gregory B. Pasternack, Univ of California, Davis, Davis, CA
  126431 (Technical Sessions)
• 4:30 PM
  MICROBIAL MEDIATION OF CARBONATE PRECIPITATION: SATURATION INDEX, EXOPOLYMERIC SUBSTANCES AND COMMUNICATION
  Pieter T. Visscher, University of Connecticut, Groton, CT and Olivier Braissant, University of Connecticut, Groton, CT and Christophe Dupraz, University of Connecticut, Groton, CT
  130044 (Technical Sessions)
• 4:45 PM
  ECOLOGY MEETS GEOCHEMISTRY: A NATIONAL ASSESSMENT OF THE BIOGEOGRAPHY OF MICROBIAL COMMUNITIES IN SOILS
  Mark P. Waldrop, Menlo Park, CA and JoAnn M. Holloway, U.S. Geological Survey, Denver, CO
  129341 (Technical Sessions)
• 5:00 PM
  INFLUENCE OF PARENT LITHOLOGY ON SOIL MICROBIAL COMMUNITIES AS DEFINED BY PHOSPHOLIPID FATTY ACIDS
  JoAnn M. Holloway, U.S. Geological Survey, Denver, CO and Jean Morrison, USGS Denver Federal Center, Denver, CO and Martin B. Goldhaber, U. S. Geological Survey, Denver, CO
  128422 (Technical Sessions)
• 5:15 PM
  THE GOLDILOCKS CATENAS OF SOUTH AFRICA: MAXIMUM SOIL DIFFERENTIATION ACROSS GRANITIC HILLSLOPES
  Tony Hartshorn, James Madison University, Harrisonburg, VA and Lesego Khomo, University of the Witwatersrand, Johannesburg, N/A and Arjun Heimsath, Dartmouth College, Hanover, NH and Kevin Rogers, University of the Witwatersrand, Johannesburg, N/A and Oliver A. Chadwick, University of California, Santa Barbara, CA
  131238 (Technical Sessions)