Program & Agenda

Session Schedule


026 Regime shifts in lakes, rivers, and oceans

Regime shifts are sudden changes in ecosystem identity. Regime shifts have been documented in lake, river, and marine environments, including fisheries collapses and eutrophication. Patterns in ecosystem properties indicative of regime shifts include hysteresis, discontinuous shifts in time, shifts to or from chaotic dynamics, and transitions between oscillations of different frequencies. Regime shifts often occur without warning and may be difficult or impossible to reverse. Identifying the mechanisms by which regime shifts occur and the geographies of where they have or may occur is important for both environmental management and understanding ecosystem response to global change. For example, can managers anticipate regime shifts before they happen and can political structures alter policy in time to stabilize ecosystems? Will warming result in slow predictable shifts in aquatic ecosystem structure or sudden catastrophic shifts? Are all regime shifts bad? In this session we invite experimental, observational, theoretical, or modeling studies on all such aspects of aquatic regime shifts. We especially encourage contributions that take social-ecological perspectives and contributions that examine methods for detecting regime shifts before they occur.

Session organizer(s)

David Seekell, Umea University
das9xx@virginia.edu

Vasilis Dakos, Estacion Biologica de Donana
vasilis.dakos@gmail.com

Jessica Gephart, University of Virginia
jag5sa@virginia.edu



Date: 2/27/2015

Please click on the title of an abstract to view the complete abstract.


Oral Presentations


Location: Room B (Floor -3)

08:30
Verbeek, L.; Vanhamel, M.; Striebel, M.; De Meester, L.; Hillebrand, H.; STABILIZING EFFECTS OF PHYTOPLANKTON DIVERSITY IN SMALL FARMLAND PONDS (Abstract ID:26815) O

08:45
Ishikawa, K.; Haga, H.; CHANGES IN THE ECOSYSTEM OF THE SOUTH BASIN OF LAKE BIWA: FOCUS ON ALGAL BLOOMS AND SUBMERGED MACROPHYTE OVERGROWTH (Abstract ID:26512) O

09:00
Ives, S. C.; May, L.; Heal, K. V.; Elliott, A.; Spears, B. M.; INVESTIGATING MULTIPLE CRITICAL TRANSITIONS IN LOCH LEVEN (1968-2013) (Abstract ID:26775) O

09:15
Shatwell, T.; Adrian, R.; Kirillin, G.; CARDINAL PLANKTON EVENTS MEDIATE MIXING REGIME SHIFTS IN TEMPERATE SHALLOW LAKES (Abstract ID:27393) O

09:30
Martinez, G.; Sotomayor, D.; Santos, C.; Macciavelli, R.; NUMERIC NUTRIENT CRITERIA FOR RESERVOIRS IN PUERTO RICO: AN ASSESSMENT BASED ON DESIGNATED USE IMPAIRMENT (Abstract ID:25855) O

09:45
Rippey, B.; Macintosh, K.; Forasacco, E.; McElarney, Y.; Vaughan, L.; Gallagher, K.; A NEW FRAMEWORK FOR LAKE ECOLOGICAL CHANGE DUE TO EUTROPHICATION (Abstract ID:25993) O

10:30
Gsell, A. S.; Dakos, V.; Özkundakci, D.; Hansson, L. A.; Nõges, P.; Reid, P. C.; Schindler, D. E.; Van Donk, E.; Walters, A.; Adrian, R.;EARLY WARNING SIGNALS PRECEDE CRITICAL TRANSITIONS IN NATURAL AQUATIC ECOSYSTEMS (Abstract ID:26028) O

10:45
Pace, M. L.; Batt, R. D.; Buelo, C.; Carpenter, S. R.; Cole, J. J.; Kurtzweil, J. T.; Wilkinson, G. M.; EARLY WARNINGS OF PHYTOPLANKTON BLOOMS? A WHOLE LAKE EXPERIMENT (Abstract ID:25633) O

11:00
Dakos, V.; Glazer, S. M.; Hsieh, C.; Sugihara, G.; NONLINEARITY, VARIABILITY, AND AUTOCORRELATION AS SIGNATURES OF CRITICAL TRANSITIONS IN THE DYNAMICS OF EXPLOITED POPULATIONS (Abstract ID:25996) O

11:15
Ye, H.; Beamish, R. J.; Glaser, S. M.; Grant, S. C.; Hsieh, C. H.; Richards, L. J.; Schnute, J. T.; Sugihara, G.; APPARENT REGIME SHIFTS OR NONLINEAR STATE-DEPENDENCE? ENVIRONMENTAL DRIVERS OF FRASER RIVER SOCKEYE SALMON RECRUITMENT (Abstract ID:27646) O

11:30
Soudijn, F. H.; Heino, M.; Dieckmann, U.; de Roos, A. M.; COLLAPSES OF LARGE PISCIVOROUS FISH POPULATIONS DUE TO OVERFISHING CAN BE PREVENTED AND REVERSED BY HARVESTING THEIR PREY (Abstract ID:25538) O

11:45
Den Haan, J.; Visser, P. M.; Brocke, H. J.; Pander, J.; Brunner, R.; De Wit, M.; Mes, D.; De Baat, M. L.; Vermeij, M. J.; Huisman, J.;SHIFTS IN PRIMARY PRODUCTIVITY DURING THE TRANSITION FROM CORAL TO ALGAL DOMINANCE IN A REEF COMMUNITY (Abstract ID:25423) O

15:00
Khouri, R. S.; Beaulieu, C.; Henson, S. A.; Martin, A. P.; SHIFTS IN PHYTOPLANKTON POPULATIONS OF THE NORTHEAST ATLANTIC AND NORTH SEA (Abstract ID:25839) O

15:15
Bennett, S.; Wernberg, T.; Harvey, E.; Santana-Garcon, J.; Saunders, B.; TROPICAL HERBIVORES: DRIVERS OR PASSENGERS OF CLIMATE MEDIATED PHASE-SHIFTS ON TEMPERATE REEFS? (Abstract ID:26498) O

15:30
Ross, O. N.; Fraysse, M.; Pinazo, C.; Pairaud, I.; HOW INTRUSIONS OF THE NORTHERN CURRENT LEAD TO REGIME SHIFTS IN THE BIOGEOCHEMISTRY OF THE GULF OF LION (Abstract ID:27220) O

15:45
Carballeira, R.; Vázquez-Loureiro, D.; López-Rodríguez, M. C.; Otero, X. L.; Blanco, R.; Bao, R.; Leira, M.; REGIME SHIFTS, TRENDS AND INTERANNUAL VARIATIONS IN SHALLOW LAGOON IN NW SPAIN (Abstract ID:26927) O

16:00
Barquín, J.; Álvarez-Martínez, J. M.; Álvarez-Cabria, M.; Peñas, F. J.; Silió, A.; Rodríguez-Castillo, T.; González, A. M.; Estévez, E.; Lezcano, M.; FORESTS CONFER RESILIENCE TO THE FUNCTIONING OF RIVER ECOSYSTEMS (Abstract ID:26898) O

16:15
Robinson, C. T.; Scheurer, T.; Ortlepp, J.; EXPERIMENTAL FLOWS INCREASE RESILIENCE OF A REGULATED RIVER TO CATASTROPHIC DISTURBANCE (Abstract ID:25753) O

17:15
Thoms, m. c.; Cossart, R.; REGIME SHIFTS IN A TERMINAL FLOODPLAIN WETLAND COMPLEX (Abstract ID:27071) O

17:30
Stips, A. K.; Macias, D.; Lilover, M. J.; REPRODUCIBLE DETECTION OF REGIME SHIFTS (Abstract ID:26141) O

17:45
Lucena-Moya, P.; Brawata, R.; Kath, J.; Harrison, E.; ElSawah, S.; Dyer, F.; THRESHOLD ESTIMATES TO FACE CHALLENGES IN BAYESIAN NETWORKS (Abstract ID:26325) O