COS 35 - Arid and Semi-Arid Systems

Tuesday, August 9, 2011: 1:30 PM-5:00 PM
Ballroom F, Austin Convention Center
1:30 PM
Incorporating spatial patterns into a state and transition model for arid grasslands and shrublands in southern New Mexico
Darroc P. Goolsby, New Mexico State University; Brandon T. Bestelmeyer, USDA Agricultural Research Service; Steven R. Archer, University of Arizona
1:50 PM
Biotic and abiotic characteristics interact with fire history to influence biological soil crust cover and composition in the Columbia Basin
Eva Dettweiler-Robinson, University of New Mexico; Jonathan D. Bakker, University of Washington
2:10 PM
Soil-litter mixing accelerates decomposition and facilitates soil aggregate formation in a Chihuahuan Desert grassland
Daniel B. Hewins, New Mexico State University; Heather L. Throop, New Mexico State University; Steven R. Archer, University of Arizona; Gregory S. Okin, UCLA
2:30 PM
Wind erosion in groundwater dependent vegetation communities
Kimberly R. Vest, University of Maryland Center for Environmental Science; Andrew J. Elmore, University of Maryland Center for Environmental Science; James M. Kaste, The College of William and Mary; Gregory S. Okin, UCLA
2:50 PM
Habitat associations of desert small mammal communities at Ash Meadows National Wildlife Refuge, Nye County, Nevada
Tara K. Raabe, Texas State University; John T. Baccus, Texas State University; T. Wayne Schwertner, Bio-West, Inc.; Thomas R. Simpson, Texas State University
3:10 PM
3:20 PM
The role of a pre-emergent herbicide to suppress non-native annuals and facilitate the recovery of a burned Mojave Desert shrubland
Lesley A. DeFalco, US Geological Survey, Westen Ecological Science Center; Sara J. Scoles-Sciulla, Western Ecological Research Center
4:00 PM
Monsoon precipitation extremes and the response of two dominant grassland species across an arid-semiarid ecotone
Michell L. Thomey, University of New Mexico; Scott L. Collins, University of New Mexico; William T. Pockman, University of New Mexico; Michael T. Friggens, University of New Mexico; Renee F. Brown, University of New Mexico
4:20 PM
Heterogeneity in monsoon precipitation across space and time: An analysis of the northern Chihuahuan Desert, USA
Matthew D. Petrie, University of New Mexico; Scott L. Collins, University of New Mexico; David Gutzler, University of New Mexico
4:40 PM
Ecosystem water use efficiency in an arid shrubland in Chile under natural and afforested conditions
Jorge F. Perez-Quezada, Universidad de Chile; Pia M.S. Jara, Universidad de Chile; Rodrigo Fuster, Universidad de Chile; Nicolas Franck, Universidad de Chile; Keirith A. Snyder, USDA Agricultural Research Service; Douglas A. Johnson, USDA-ARS Forage and Range Research Lab
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Banner photo by Flickr user greg westfall.