Regime shifts in a social-ecological system

Steven J. Lade, Alessandro Tavoni, Simon Asher Levin, Maja Schlüter

Research output: Contribution to journalArticle

99 Scopus citations

Abstract

Ecological regime shifts are rarely purely ecological. Not only is the regime shift frequently triggered by human activity, but the responses of relevant actors to ecological dynamics are often crucial to the development and even existence of the regime shift. Here, we show that the dynamics of human behaviour in response to ecological changes can be crucial in determining the overall dynamics of the system. We find a social-ecological regime shift in a model of harvesters of a common-pool resource who avoid over-exploitation of the resource by social ostracism of non-complying harvesters. The regime shift, which can be triggered by several different drivers individually or also in combination, consists of a breakdown of the social norm, sudden collapse of co-operation and an over-exploitation of the resource. We use the approach of generalized modeling to study the robustness of the regime shift to uncertainty over the specific forms of model components such as the ostracism norm and the resource dynamics. Importantly, the regime shift in our model does not occur if the dynamics of harvester behaviour are not included in the model. Finally, we sketch some possible early warning signals for the social-ecological regime shifts we observe in the models.

Original languageEnglish (US)
Pages (from-to)359-372
Number of pages14
JournalTheoretical Ecology
Volume6
Issue number3
DOIs
StatePublished - Aug 2013

All Science Journal Classification (ASJC) codes

  • Ecology
  • Ecological Modeling

Keywords

  • Bifurcation
  • Early warning signals
  • Generalized modelling
  • Regime shifts
  • Tipping points
  • social-ecological system

Fingerprint Dive into the research topics of 'Regime shifts in a social-ecological system'. Together they form a unique fingerprint.

  • Cite this