COS 42 Grasslands/Steppe

Tuesday, August 4, 2009: 1:30 PM-5:00 PM
Sendero Blrm III, Hyatt
Presider:
Elise Pendall
1:30 PM
1
Grassland songbird community diversity, evenness, and nest survival vary inversely with park size and latitude
Sarah E. Rehme, University of Nebraska-Lincoln; Craig R. Allen, University of Nebraska-Lincoln; Larkin A. Powell, University of Nebraska-Lincoln
1:50 PM
2
Influences of native prairie dogs and domestic cattle on the native grasshopper assemblages of a desert grassland
David C. Lightfoot, University of New Mexico; Ana D. Davidson, Universidad Nacional Autónoma de México; Eduardo Ponce, Universidad Nacional Autónoma de México; Rurik List, Universidad Nacional Autónoma de México; Gerardo Ceballos, Universidad Nacional Autónoma de México
2:10 PM
3
Ungulate and topographic control of arbuscular mycorrhizal fungal spore community composition in a temperate grassland
Tanya R. Murray, Syracuse University; Douglas A. Frank, Syracuse University; Catherine A. Gehring, Northern Arizona University
2:30 PM
4
Introduced grazers can reduce ecosystem function and reduce potential soil carbon sequestration
Sumanta Bagchi, Syracuse University; Mark E. Ritchie, Syracuse University
2:50 PM
5
Does cheatgrass invasion contribute to rarity? Small mammal abundance, habitat use, and movement patterns
Natalie C. Melaschenko, University of British Columbia Okanagan; Karen E. Hodges, University of British Columbia Okanagan
3:10 PM
3:20 PM
6
The relationship between diversity and invasion resistance in wet-mesic tallgrass prairie restorations
Kristine T. Nemec, University of Nebraska-Lincoln; Craig R. Allen, University of Nebraska-Lincoln
3:40 PM
7
Competitive equivalency of cultivar and non-cultivar dominant prairie grasses in an experimental restoration
Lewis K. Reed, Southern Illinois University Carbondale; Sara Baer, Southern Illinois University Carbondale; David J. Gibson, Southern Illinois University
4:20 PM
9
4:40 PM
10
Elevated [CO2] and warming differentially impact carbon isotope discrimination and tissue N concentration in five grassland species
Emma L. Sage, University of Wyoming; David G. Williams, University of Wyoming; Elise Pendall, University of Wyoming; Daniel R. LeCain, USDA-ARS; Jack A. Morgan, USDA-ARS; Ron Follett, USDA-ARS