OOS 3 - Determining Environmental Flows to Preserve River Biodiversity in a World Thirsting for Water

Monday, August 8, 2011: 1:30 PM-5:00 PM
12A, Austin Convention Center
Organizer: Kirk O. Winemiller
Co-organizer: Nathan Lujan
Moderator: Kirk O. Winemiller
In this organized oral session, rising and established aquatic biologists and river conservationists will assemble to discuss factors that contribute to successful aquatic biodiversity conservation in the face of often intense pressure to exceed flow limits that must be set to maintain biodiversity in lotic systems. Session participants from many latitudes will explore how recent advances in basic ecological research can offer solutions to key technical sticking points in determining requirements for environmental flows in fluvial systems. Participants also will describe how the need for improved technical solutions has yielded new avenues of inquiry in basic ecology research. Specific topics will include the decision tools necessary for recommending minimum flow requirements, parameters necessary for replication of natural flow periodicity, minimum flow requirements for successful maintenance of floodplain habitats, effects of flow alteration on fish populations, nutrient cycling, and river physico-chemical parameters, and the fundamental similarities and differences between temperate and tropical flow regimes.
1:30 PM
Challenges for establishing environmental flows
Dr. Thomas B. Hardy, Texas State University
1:50 PM
A tale of two tailwaters: Constraints to effective mitigation with environmental flow restoration
Donald J. Orth, Virginia Tech University; Ryan A. McManamay, Virginia Tech University; Scott M. Smith, Virginia Department of Game and Inland Fisheries
2:30 PM
River production sources vary in response to flows, 5 case studies
Katie Roach, Université du Québec à Trois-Rivières
2:50 PM
Food web dynamics and river flow variability
M.E. Power, University of California, Berkeley
3:10 PM
3:20 PM
Incorporating ecological costs and benefits into environmental flow recommendations: Ecosystem services provided by freshwater mussels
Caryn C. Vaughn, University of Oklahoma; Jason P. Julian, University of Oklahoma; Carla L. Atkinson, University of Oklahoma
3:40 PM
4:20 PM
Consistent scaling relationships between habitat size and food web structure in intermittent Canterbury streams
Angus R. McIntosh, University of Canterbury; Peter A. McHugh, Washington Department of Fish & Wildlife; Ross M. Thompson, Monash University
4:40 PM
Projecting future conditions of riverine ecosystems using a macroecological modeling approach
Kevin E. McCluney, Bowling Green State University; N.L. Poff, Colorado State University; Geoffrey C. Poole, Montana State University; James H. Thorp, University of Kansas; Margaret Palmer, University of Maryland
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Banner photo by Flickr user greg westfall.