Oral Session 48: Invasive Species II: Cheatgrass and Yellow Starthistle.
Presiding: C Brown
Tuesday, August 3, 1:30 PM to 5:00 PM, Meeting Room D 133.
1:30 PM Gelbard, Jonathan*,1, Harrison, Susan2, 1 Dept of Environmental Science and Policy, Davis, CA, USA2 Dept of Environmental Science and Policy, Davis, CA, USA Landscape structure, biotic resistance, and invasional meltdown: An experimental study of yellow starthistle.
1:50 PM Lortie, Christopher*,1, Hierro, Jose2, Villarreal, Diego3, 1 University of Nevada Reno, Reno, Nevada2 University of Montana, Missoula, Montana3 Universidad Nacional de La Pampa, Santa Rose, La Pampa, Argentina Seed and seedbank dynamics of the highly invasive weed Yellow starthistle.
2:10 PM Hierro, Josť1, Villarreal, Diego2, Callaway, Ragan1, 1 The University of Montana, Missoula, Montana2 Universidad Nacional de La Pampa, Santa Rosa, La Pampa, Argentina A biogeographical comparison of the invasion success of Centaurea solstitialis between California and central Argentina.
2:30 PM Bradford, John1, 2, Lauenroth, William1, 3, 1 Dept. of Forest, Range and Watershed Stewardship, Fort Collins, CO, USA2 Graduate Degree Program in Ecology, Fort Collins, CO, USA3 Natural Resource Ecology Laboratory, Fort Collins, CO, 80521 Controls over cheatgrass invasion: The importance of climate, soil, disturbance and seed availability.
2:50 PM Mayer, Kara*,1, 2, Pyke, David1, 2, 1 Oregon State University, Corvallis, OR2 U.S.G.S. Forest and Rangeland Ecosystem Science Center, Corvallis, OR Effect of defoliation on seed production of Bromus tectorum.
3:10 PM Break.
3:20 PM Newingham, Beth*,1, 3, Sanford, Robert2, Belnap, Jayne1, 1 US Geological Survey, Moab, UT, USA3 Department of Biological Sciences, Las Vegas, NV, USA2 Department of Biological Sciences, Denver, CO, USA Burning soil alters soil chemistry and subsequently affects the invasive annual grass, Bromus tectorum.
3:40 PM Hogel, Adrian*,1, Sanford, Robert1, 1 University of Denver, Denver, CO Allelopathy and root exudates of cheatgrass (Bromus tectorum).
4:00 PM HAUBENSAK, KAREN*,1, D'ANTONIO, CARLA1, EMBRY, SAUNDRA1, 1 USDA-AGRICULTURAL RESEARCH SERVICE, RENO, NEVADA, USA Some evidence for local adaptation in cheatgrass populations invading salt desert habitat in Nevada.
4:20 PM Embry, Saundra*,1, D'Antonio, C.1, 2, Haubensak, K.2, 1 University of Nevada, Reno, NV, USA2 USDA-Agricultural Research Station, Reno, NV, USA Patterns of mycorrhizal colonization and plant growth in cheatgrass invasion of salt desert versus sagebrush soils.
4:40 PM Chambers, Jeanne*,1, Blank, Robert2, Roundy, Bruce3, Meyer, Susan4, Whittaker, Alison5, 1 USDA Forest Service, Reno, NV, firstname.lastname@example.org USDA ARS, Reno, NV3 Brigham Young University, Provo, UT4 USDA Forest Service, Provo, UT5 Utah Division of Wildlife Resources, Ephraim, UT Invasibility of sagebrush communities by cheatgrass (Bromus tectorum): Effects of native herbaceous species and fire.
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