Perceptions of system-identity and regime shift for marine ecosystems
Management of marine ecosystems often seeks to maintain systems in stable states that are close to their historical pristine state, or a state where pressures and resource extraction does not degrade the system beyond a point of no return. When regime shifts occur these can therefore considered to be failures in management. Regime shifts should be recognisable as the system departs from the status quo or away from a desirable state and transgresses over some definitive reference points. However, Ingrid van Putten* and colleagues from CSIRO (Commonwealth Scientific and Industrial Research Organisation) and the University of Tasmania found that there is limited consensus among marine scientists as to what actually constitutes a regime shift. Thus, the authors identified a fundamental ambiguity in a key concept for ecosystem based management.
See full paper:
Ingrid van Putten*, Fabio Boschetti, Scott Ling, and Shane A. Richards (2019) Perceptions of system-identity and regime shift for marine ecosystems. ICES Journal of Marine Science, fsz058
The idea for this research was first conceptualized at the marine regime shift workshop at the fourth IMBeR IMBIZO meeting: Marine and human systems: Addressing multiple scales and multiple stressors, hosted by the Istituto Nazionale di Oceanografia and Geofisica Sperimentale in Trieste, Italy, October 2015.
*Ingrid van Putten is Chair of the IMBeR Human Dimensions Working Group.