Oral Session 117: Invasive Species IX: Knapweed.
Presiding: J Jacobs
Thursday, August 5, 1:30 PM to 5:00 PM, Meeting Room C 120.
1:30 PM Myers, Judith*,1, 1 Dept. Zoology and Faculty of Agricultural Sciences, Vancouver, B.C., Canada A silver bullet in the biological control of diffuse knapweed.
1:50 PM Pankey, Joel*,1, Black, R. Alan1, 1 Washington State University-, Pullman, WA The role of competition in invasions: A case study with 3 Centaurea species.
2:10 PM Jacobs, James*,1, 1 Montana State University-Bozeman, Bozeman, MT, USA Combining a parasite and a competitor to reduce Centaurea maculosa population density.
2:30 PM Thelen, Giles*,1, Callaway, Ragan1, 1 The University of Montana, Missoula, MT, USA Insect herbivory stimulates allelopathic exudation by an invasive plant and the suppression of natives.
2:50 PM Thorpe, Andrea*,1, 1 University of Montana, Missoula, Montana, USA Effects of Centaurea maculosa on nitrification in North America and Romania: Evidence for novel weapons.
3:10 PM Break.
3:20 PM D'Imperio, Elizabeth*,1, Olson, Bret1, 1 Montana State University, Bozeman, MT, USA Nitrogen uptake, allocation, and resorption of Centaurea maculosa and three native species.
3:40 PM Sartor, Karla*,1, Zabinski, Catherine1, 1 Montana State University, Bozeman, MT Influence of arbuscular mycorrhizal fungi and root interactions on competition between Centaurea maculosa and two native bunchgrasses.
4:00 PM Olson, Bret*,1, Zabinski, Cathy1, 1 Montana State University-Bozeman, Bozeman, MT, USA Nitrogen relations of Centaurea maculosa and two native grasses: Effect of defoliation, mycorrhizae, and nutrients.
4:20 PM Pearson, D*,1, 2, Ortega, Y2, Callaway, R1, McKelvey, K2, 1 University of Montana, Missoula, MT, USA2 USDA Forest Service, Rocky Mountain Research Station, Missoula, MT, USA Indirect effects of host-specific biological control agents.
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