COS 92
Food Webs II

Thursday, August 8, 2013: 8:00 AM-11:30 AM
L100H, Minneapolis Convention Center
8:00 AM
 Ant-aphid mutualisms in the face of ant invasions: do novel partners affect diversity within mutualist and parasitoid guilds?
Katherine E. LeVan, University of California, San Diego; David A. Holway, University of California, San Diego
8:20 AM
 A potential mechanism underlying the ecosystem size food chain length trend: Shallow lakes as model ecosystems for addressing the predator prey interaction hypothesis
Jacob P. Ziegler, McGill University & University of Montreal; Christopher T. Solomon, McGill University & University of Montreal; Bruce Finney, Idaho State University; Irene Gregory-Eaves, McGill University & University of Montreal
8:40 AM
 Examining the role of bacteria in stream food webs using a dual-isotope tracer approach
Sarah M. Collins, Cornell University; Steven A. Thomas, University of Nebraska-Lincoln; Alexander S. Flecker, Cornell University
9:00 AM
 Seasonal hydrology drives shifts in production sources supporting fishes in the Lower Mekong River Basin
Chouly Ou, Royal Univesity of Phnom Penh; Kirk O. Winemiller, Texas A&M University
9:20 AM
 Adaptive foraging stabilizes pollination networks via apparent altruism
Fernanda S. Valdovinos, University of Arizona; Neo D. Martinez, University of Arizona
9:40 AM
10:10 AM
 HSS revisited: Bottom-up control in detritus food chains facilitates top-down control in grazing chains and greater omnivory across a productivity gradient
Colette L. Ward, University of Guelph; Neil Rooney, University of Guelph; Kevin S. McCann, University of Guelph
10:30 AM
 Foundation species in food webs
Benjamin Baiser, University of Florida; Nathaniel Whitaker, University of Massachusetts; Aaron M. Ellison, Harvard University
10:50 AM
 Food web properties persist following amphibian extirpations in a Neotropical stream
Thomas Barnum, University of Georgia; John M. Drake, University of Georgia; Checo Colón-Gaud, Georgia Southern University; Amanda Rugenski, Southern Illinois University; Therese Frauendorf, University of Hawai'i at Manoa; Susan S. Kilham, Drexel University; Matt R. Whiles, Southern Illinois University Carbondale; Karen Lips, University of Maryland; Catherine M. Pringle, University of Georgia