Monday, August 2, 2010: 1:30 PM-5:00 PM
301-302, David L Lawrence Convention Center
OOS 1 - Food Webs and Climate Change
Climate change impacts on plant and animal species are already evident as shifts in their geographic distribution and altered phenology and life-history. These alterations stand to disrupt and reassemble species linkages that determine ecosystem structure and vital functions and services. But, predicting exactly what these changes will be is limited by uncertainty about how mechanisms of direct and indirect species interactions will change. This organized oral session will offer insight, by way of strategic examples in presentations, how to develop a new research program aimed at reducing uncertainties about species interactions in food webs to obtain a complete understanding of climate change effects on ecosystems. Accordingly, this symposium will draw on leading experts in food web biology in terrestrial, freshwater and marine systems to examine whether, what, and how we can predict the consequence of climate change on functioning of foodwebs. Climate change is the single most important large-scale environmental perturbation facing the planet. It will impact interactions among species below and above ground and at the interface of soils, land, water and air. Central to all modern research on food webs are traits – from the common but not simple consideration of body size to the more complex integration of thermal tolerance, foraging mode and antipredator behavior that are routinely involved in individual decisions that determine the nature and strength of food web interactions. This integration of individual scale biology with network level models and data is a most promising interface for linking food webs to climate change and will serve as a focus of the symposium. This is because species traits influence both lethal and sub-lethal effects in food webs and thus represent a scale of biological organization that holds considerable promise to make reliable predictions about climate effects on food webs. This symposium will bring together researchers working in soil, freshwater, marine and terrestrial systems. It will showcase work focusing on small, experimentally-well defined networks of interactions as well as large networks of more than 100 sampled species. It will further showcase the variety of methodologies that can be applied to gain an integrated perspective of climate effects on food webs with implications for ecosystem function and services.
Organizer:Oswald J. Schmitz, Yale University
Co-organizer:Andrew P. Beckerman, University of Sheffield
Moderator:Andrew P. Beckerman, University of Sheffield
1:30 PMOOS 1-1Threshold energy requirements and the robustness of size-structured food webs
Aaron Thierry, University of Sheffield & Microsoft Research, Cambridge, Owen L. Petchey, University of Sheffield, Andrew Cole, The University of Sheffield, Philip H. Warren, University of Sheffield, Andrew P. Beckerman, University of Sheffield, Richard J. Williams, Microsoft Research Ltd.
1:50 PMOOS 1-2Effects of temperature on consumer control and food web structure: Theoretical predictions and empirical tests in planktonic food webs
Mary I. O'Connor, National Center for Ecological Analysis and Synthesis, Benjamin Gilbert, University of California - Santa Barbara, Chris J. Brown, University of Queensland
2:10 PMOOS 1-3Predator local adaptation to climate and evolutionary ecology of variation in trophic interaction strength
Brandon T. Barton, University of Wisconsin
2:30 PMOOS 1-4Potential climate change impacts on fish production from 20 large marine ecosystems around the world
Julia Blanchard, Imperial College London, Simon Jennings, Centre for Environment, Fisheries and Aquaculture Science (CEFAS) and University of East Anglia, Robert Holmes, Plymouth Marine Laboratory, Nicholas K. Dulvy, Simon Fraser University, Manuel Barange, Plymouth Marine Laboratory
2:50 PMOOS 1-5Climate change impacts on freshwater food webs
Guy Woodward, Queen Mary University of London, Nikolai Friberg, University of Aarhus, Doris E. Pichler, Queen Mary University of London, Murray S. Thompson, Queen Mary University of London, Gabriel Yvon-Durocher, Queen Mary University of London, Jon Olafsson, Institute of Freshwater Fisheries, Glisli Gislason, University of Reykjavik, Julia Reiss, Queen Mary University of London, Daniel M. Perkins, Queen Mary University of London, Benoit Demars, Macaulay Institute
3:10 PM Break
3:20 PMOOS 1-6Climate change and the potential for transformation of food web connectedness
Oswald J. Schmitz, Yale University
3:40 PMOOS 1-7Soil food webs and climate change
Peter deRuiter, University of Wageningen, John C. Moore, Colorado State University
4:00 PMOOS 1-8Context-dependent top-down and bottom-up processes in a continental grassland community
Anthony Joern, Kansas State University, Angela N. Laws, Kansas State University
4:20 PMOOS 1-9Potential impacts of climate change in northeast Pacific marine food webs
Jameal F. Samhouri, NOAA Fisheries, Cameron Ainsworth, Northwest Fisheries Science Center. NOAA, D. Shallin Busch, NOAA - Northwest Fisheries Science Center, Thomas A. Okey, West Coast Vancouver Island Aquatic Management Board, William L. Cheung, University of East Anglia
4:40 PMOOS 1-10Higher resilience to repeated drought in soil with a more diverse food web
Franciska T. de Vries, Lancaster University, Mira Liiri, University of Helsinki, Lisa Bjørnlund, University of Copenhagen, Heikki Setälä, University of Helsinki, Søren Christensen, University of Copenhagen, Richard D. Bardgett, Lancaster University

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